Article: 216268 of rec.radio.amateur.antenna Subject: Re: Removal of Morse Code from Amateur License Requirements... From: Cecil Moore Date: Fri, 12 Aug 2005 11:58:20 -0500 Message-ID: <1123866104_11205@spool6-east.superfeed.net> References: <42FC018E.E4C00667@earthlink.net> <1123817805_9029@spool6-east.superfeed.net> <76ednTNt7O45XGHfRVn-2Q@comcast.com> Ham op wrote: > Cecil Moore wrote: >> Real hams do DSP filtering at IF. > > Cecil, I thought you and I did our 'DSP Filtering' by adjusting the > regeneration control or the whisker. Strangely enough, I never used anything except a superhet. > What's an IF ?? 455 Khz on everything I used back then. With no RF amp, my S38 would receive the same signal on two different frequencies on 15m, sometimes eliminating an interferring signal in the process. -- 73, Cecil, http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- Article: 216269 of rec.radio.amateur.antenna From: Walter Maxwell Subject: Re: Removal of Morse Code from Amateur License Requirements... Message-ID: <3llpf15sfskejme6tu150cg4lgs7c51r6a@4ax.com> References: <42FC018E.E4C00667@earthlink.net> <1123817805_9029@spool6-east.superfeed.net> <76ednTNt7O45XGHfRVn-2Q@comcast.com> <1123866104_11205@spool6-east.superfeed.net> Date: Fri, 12 Aug 2005 13:09:17 -0400 On Fri, 12 Aug 2005 11:58:20 -0500, Cecil Moore wrote: >Ham op wrote: >> Cecil Moore wrote: >>> Real hams do DSP filtering at IF. >> >> Cecil, I thought you and I did our 'DSP Filtering' by adjusting the >> regeneration control or the whisker. > >Strangely enough, I never used anything except a superhet. > >> What's an IF ?? > >455 Khz on everything I used back then. With no RF amp, >my S38 would receive the same signal on two different >frequencies on 15m, sometimes eliminating an interferring >signal in the process. Cecil, without the RF amp to erase the image, the S38 could boast two-fer-one, or double yer pleasure--two places to get yer information--you could take yer pick. The filter in that unit was a Gilette double-edged type. Walt Article: 216270 of rec.radio.amateur.antenna Subject: Re: Removal of Morse Code from Amateur License Requirements... From: Cecil Moore Date: Fri, 12 Aug 2005 12:40:08 -0500 Message-ID: <1123868612_11243@spool6-east.superfeed.net> References: <42FC018E.E4C00667@earthlink.net> <1123817805_9029@spool6-east.superfeed.net> <76ednTNt7O45XGHfRVn-2Q@comcast.com> <1123866104_11205@spool6-east.superfeed.net> <3llpf15sfskejme6tu150cg4lgs7c51r6a@4ax.com> Walter Maxwell wrote: > Cecil, without the RF amp to erase the image, the S38 could boast > two-fer-one, or double yer pleasure--two places to get yer > information--you could take yer pick. The filter in that unit was a > Gilette double-edged type. Actually, I wanted to build the amplitude discriminator filter described in the April 195? edition of QST. With back to back discriminators, it blocked the strong signals and let the weak ones through. Larson E. Rapp certainly performed miracles with unusual electronic designs back in those days. One time the BFO oscillator cap failed in my Hallicrafters S53A. Shorty (W5 Old Lonely Virgin) the local TV repairman, didn't have anything that small so he showed me how to twist two wires together until I got the right beat frequency. -- 73, Cecil, http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- Article: 216271 of rec.radio.amateur.antenna From: "JOE" References: <80skf1lkutq3jrc4lhogth32a13d4fptg7@4ax.com> Subject: Re: FA: Yaesu YH-55 Headphones - As New in Box Message-ID: <1123875230.3223785fea96174b8d975eecd4caebb4@meganetnews2> Date: Fri, 12 Aug 2005 12:33:48 -0700 "Mike Coslo" wrote in message news:SMidnQlwxa07EWffRVn-1A@adelphia.com... > Dave wrote: >> I have this for sale on eBay: >> >> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=5796984738&rd=1&sspagename=STRK%3AMESE%3AIT&rd=1 >> >> Thanks for looking. > > > Dave, you are spamming several newsgroups with this stuff. > FA: posts have no place in rec.radio.amateur antenna, boatanchors, misc, > or equipment. It belongs in swap only. > > Thanks. > > - Mike KB3EIA - Mike - did you just wake up from a 9 year coma or something?? YOU are spamming your hatred of Ebay just as much as he's spamming his ad! If you're so offended, learn to use kill files and you'll never even see the evil awful horrid Ebay ads. Add my name to and you'll never hear >from me again either JOE Article: 216272 of rec.radio.amateur.antenna Subject: Re: FA: Yaesu YH-55 Headphones - As New in Box From: Cecil Moore Date: Fri, 12 Aug 2005 15:52:10 -0500 Message-ID: <1123880086_11361@spool6-east.superfeed.net> References: <80skf1lkutq3jrc4lhogth32a13d4fptg7@4ax.com> <1123875230.3223785fea96174b8d975eecd4caebb4@meganetnews2> JOE wrote: > YOU are spamming your hatred of Ebay just as much as he's spamming > his ad! But hatred of Ebay is not against the usenet posting rules. :-) -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! >100,000 Newsgroups ---= East/West-Coast Server Farms - Total Privacy via Encryption =--- Article: 216273 of rec.radio.amateur.antenna From: "Aspen37" References: <2RsKe.582493$cg1.537376@bgtnsc04-news.ops.worldnet.att.net> Subject: Re: (2) Base antenna's. (SOLD)Cushcraft 6 meter and Diamond dual band VHF/UHF Message-ID: Date: Fri, 12 Aug 2005 22:55:34 GMT Cushcraft AR6 is sold, Thanks!!!!!!!!! Article: 216274 of rec.radio.amateur.antenna From: "Jason" Subject: Bigfoot Report & Photo Message-ID: Date: Fri, 12 Aug 2005 23:25:58 GMT Another Bigfoot sighting has been reported in Oklahoma. A newspaper business information web site has the latest photo image. See what you think. You can see it at: http://www.newspaper-info.com Click on the "Bigfoot" link. JJ Article: 216275 of rec.radio.amateur.antenna Date: 13 Aug 2005 00:21:47 -0000 Message-ID: <20050813002147.25896.qmail@nym.alias.net> From: nobody@anon.lcs.mit.edu (Anonymous) Subject: Re: FA: Yaesu YH-55 Headphones - As New in Box References: <1123880086_11361@spool6-east.superfeed.net> (Following from offical usenet rules. Personal likes and dislikes are not rules.) Date: Tue, 28 Dec 1999 09:00:16 GMT Message-ID: From: netannounce@deshaw.com (Mark Moraes) Subject: Rules for posting to Usenet Newsgroups: news.announce.newusers .. Announcement of professional products or services on Usenet is allowed, provided suitable restraint is exercised. .. There exists an alternative hierarchy called "biz" specifically for commercial postings. .. Article: 216276 of rec.radio.amateur.antenna Subject: Re: Removal of Morse Code from Amateur License Requirements... From: Cecil Moore Date: Fri, 12 Aug 2005 22:11:32 -0500 Message-ID: <1123902848_191@spool6-east.superfeed.net> References: <42FC018E.E4C00667@earthlink.net> <1123817805_9029@spool6-east.superfeed.net> Dee Flint wrote: > Not the least little bit. All our renewals are free regardless of age or > work status except for those who elected to get a vanity call sign of their > own choosing instead of sticking with an assigned call. I would have loved to stick with my assigned call when I moved >from TX to CA in 1971 but the FCC forced me to give it up. Now they have charged me the social security money they gave me to get it back. -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- Article: 216277 of rec.radio.amateur.antenna From: "Mr Fed UP" References: <42FC018E.E4C00667@earthlink.net> <1123817805_9029@spool6-east.superfeed.net> Subject: Re: Removal of Morse Code from Amateur License Requirements...Vanity call wheeee Message-ID: Date: Sat, 13 Aug 2005 01:41:00 -0500 Well for myself I wouldn't have picked the spaghetti soup group of letters I had to start with. But after retiring I thought I might as well get a little vain... That's all that left after a while. he he.... So for a whopping $20 I got a vanity call after moving to a new call area. I thought in my second life after heart surgery, back surgery,.ect. I might as well have a little fun. After all isn't that what a hobby is for? I'll get 10 years out of my new call but I can't get that far on $20 worth of gas these days. eh. Now all I need is about $20K for that new $13,000 ham radio and a tower and antenna ha ha. What ever is fun is ok. Even if it means dumping a 25 year old call sign. Let me see Ham radio so varied what next. Been there done that.... DXCC... RTTY... OSCAR.,.. PACKET... oh and of coarse RAG CHEW codey slow no problem getting in the time for that award. Contest... Special events... Homebrew... and a cold brew... Oh BTW it isn't the one with the most toys... It's the one who gets to play the most with their toys. Have fun everyone and don't take it too seriously or you get an ulcer and high blood pressure. Cheers 73 ol' WB9SMX new K4TWO when the papers arrive. ;-) "Dee Flint" wrote in message news:iN2dnaHNlbId2GDfRVn-vw@comcast.com... > > "Reg Edwards" wrote in message > news:ddhag7$kdf$1@nwrdmz01.dmz.ncs.ea.ibs-infra.bt.com... >> >> I do wish people would not refer to me as a 'ham'. >> >> Amongst the very few things I am proud of is that I am a true Class-A >> Radio Amateur. >> >> Incidentally, as a British pensioner, my annual licence is free. When >> requested I just have to confirm I am still in circulation. Same >> applies to riding on buses when mobile or not mobile, sober or not >> sober. >> >> Arn't you American Amateurs envious? >> ---- >> Reg, G4FGQ. > > Not the least little bit. All our renewals are free regardless of age or > work status except for those who elected to get a vanity call sign of > their own choosing instead of sticking with an assigned call. > > Dee D. Flint, N8UZE > Article: 216278 of rec.radio.amateur.antenna From: Brian Howie Subject: Re: Azimuthal maps & antenna Patterns Date: Sat, 13 Aug 2005 09:16:44 +0100 Message-ID: <4dlbNsBsxa$CFwN$@b-howie.demon.co.uk> References: <42fb1dc1$0$3103$8fcfb975@news.wanadoo.fr> In message <1123763405_2701@spool6-east.superfeed.net>, Cecil Moore writes >Marc Delporte wrote: >> By tracing the directional pattern of the antenna system on a sheet >>of tissue paper, then placing the paper over the azimuthal map, >> the "coverage" of the antenna will be readily evident. >> I suppose that in 2005, this could be done with computers ! >> I'm looking for such software ! Any ideas, any experiences ? > >The radiation pattern can, of course be obtained from EZNEC. >Free demo version available at www.eznec.com > >The azimuthal map can be obtained from PIZZA. >Free at www.tonnesoftware.com > >These two can be overlaid to obtain the graphic that you >desire. The latest version of PIZZA is supposed to take the >output data from EZNEC and plot it centered at a point on >the earth. I haven't had time to try the new version yet. Wow. I've just tried this using the .csv output from MMANA and converting via excel. The output of 4NEC2 works as well. I was able plot the 4 antennas we used on the UK VHF NFD recently very quickly. There's a couple of bugs. The locator square seems to be one small square out and I get a glitch on a couple of the patterns. Otherwise it's pretty good. 73 Brian GM4DIJ -- Brian Howie Article: 216279 of rec.radio.amateur.antenna From: "hilbert" Subject: motormovies Date: Sat, 13 Aug 2005 10:51:53 +0200 Message-ID: I got a lot off motormovies online all for free come watch them on www.kawagpx.cjb.net Hilbert Article: 216280 of rec.radio.amateur.antenna From: Brian Howie Subject: Re: 4Mtrs Date: Sat, 13 Aug 2005 18:13:45 +0100 Message-ID: <21MYX2AJpi$CFwPy@b-howie.demon.co.uk> References: <313030303837383542FB88F544@zetnet.co.uk> In message , gb writes >"Dave Piggin" wrote in message >news:313030303837383542FB88F544@zetnet.co.uk... >> Hi All. Any good links for building 4Mtr beams for portable work or >> permanent. TIA Dave. >> >> -- >> Amateur Radio Call Sign M1BTI, Located in Manchester England. >> Locator square IO83TK >> Chairman Of Trafford Radio Club. Club Call Signs G0TRG & M1BBP >> Located at Umist, University Of Manchester Institute For Science And >> Technology >> Share What You Know, Learn What You Dont. > >Dave - > >4 Meters is not available for amateur radio usage in North America. RSGB >would be a logical reference source ... or adopt existing 6 meter or >commercial FM broadcast (88 - 108 MHz) designs > >A standard 1/2 wave driven element will be approximately 6 feet (or 2 >meters) in length. Uhm -rec.radio.amateur.antenna is a world-wide newsgroup I find RSGB antenna designs to be disappointing. FM broadcast antennas are too broad band. There is more mileage in scaling 6m designs, but you can do your own better optimised design for 4m since it is only 500KHz wide. I've an 11 element on a 15m boom -but its bandwidth is only 200KHz. There is a good design here with construction details. http://www.g1ogy.com/G4ZTR/4Mbeam/G4ZTR4mbeam.html There are others if you search. 73 Brian GM4DIJ -- Brian Howie Article: 216281 of rec.radio.amateur.antenna From: richardharrison@webtv.net (Richard Harrison) Subject: Re: The Extreme Failure of Poor Concepts in Discussing Thin Layer Date: Sat, 13 Aug 2005 13:50:03 -0500 Message-ID: <19367-42FE40DB-199@storefull-3251.bay.webtv.net> References: <1123784374_8005@spool6-east.superfeed.net> Cecil, W5DXP wrote: "Net current doesn`t flow." I`m inclined to agree, but at first current flows with a volts to amps ratio rqual to the Zo of the line until a reflection returns to the connection point of the stub. Then the total phase rotation within the stub has reached 360-degrees. The complete reflection supplies a reflected voltage wqual to the incident voltage. There is no difference of potential or phase to evoke current. It`s the equivalent of a very high impedance. Almost no more current is motivated to flow, once the steady-state condition is reached. Alexander Wing wrote on page 29 of "Transmission Lines, Antennas, and Wave Guides": "Suppression of Even Harmonics.- An application of a short-circuited quarter-wavelength line is to suppress any unwanted even harmonics in the output of a radio transmitter. A short-circuited one-quarter wavelength long at the desired output frequency may be connected across the output terminals or across the antenna feeder at any point without placing much load on the transmitter at the fundamental or desired output frequency, since at this frequency such a section has an impedance ideally infinite, actually about 400,000 ohms." How much current flows into 400.000 ohms? Best regards, Richard Harrison, KB5WZI Article: 216282 of rec.radio.amateur.antenna From: jim2885@earthlink.net Subject: Re: Feeding ladder line question Message-ID: References: Date: Sat, 13 Aug 2005 20:27:36 GMT Just because your feedline is 450 ohm doesn't mean that the antenna impedance is 450. A center fed zepp is a high impedance feed, probably above 1000 ohms. The reason for using open wire is to minimize loss in the line, open wire is very low loss. Also, depending on the length of the open wire, it could act as a transformer, changing the impedance. Feeding it into a 4:1 balun will drop the impedance but if the balun is feeding a 1600 ohm load, the other side of the balun will see 400 ohms, certainly not a match for coax, or for your rig. 73, Ken WA8JXM On Fri, 05 Aug 2005 23:00:23 GMT, S.Fritts wrote: >I dont think my post got posted...I want to use two seperate antennas >such as center fed zepp types.....can I feed each antenna with ladder >line such as 450 ohm and then teminate each ladder line to two 4:1 >baluns (one balun per line) and use 50 ohm coax to the shack? In >other words, one balun per feed line the have 2 coaxes running in to >the shack with an antenna switch. > >Thanks > >Steve >W4SEF Article: 216283 of rec.radio.amateur.antenna From: Big Endian Subject: Re: Removal of Morse Code from Amateur License Requirements... References: <42FC018E.E4C00667@earthlink.net> <1123817805_9029@spool6-east.superfeed.net> Message-ID: Date: Sat, 13 Aug 2005 21:26:04 GMT In article <1123817805_9029@spool6-east.superfeed.net>, Cecil Moore wrote: > > Real hams do DSP filtering at IF. I thought you were an antenna guy. Article: 216284 of rec.radio.amateur.antenna Subject: Re: Removal of Morse Code from Amateur License Requirements... From: Cecil Moore Date: Sat, 13 Aug 2005 16:39:26 -0500 Message-ID: <1123969322_1319@spool6-east.superfeed.net> References: <42FC018E.E4C00667@earthlink.net> <1123817805_9029@spool6-east.superfeed.net> Big Endian wrote: > Cecil Moore wrote: >>Real hams do DSP filtering at IF. > > I thought you were an antenna guy. Believe it or not, I have at least two areas of interest. :-) -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- Article: 216285 of rec.radio.amateur.antenna Subject: Re: The Extreme Failure of Poor Concepts in Discussing Thin Layer From: Cecil Moore Date: Sat, 13 Aug 2005 16:57:52 -0500 Message-ID: <1123970428_1369@spool6-east.superfeed.net> References: <1123784374_8005@spool6-east.superfeed.net> <19367-42FE40DB-199@storefull-3251.bay.webtv.net> Richard Harrison wrote: > Cecil, W5DXP wrote: > "Net current doesn`t flow." > > I`m inclined to agree, but at first current flows with a volts to amps > ratio rqual to the Zo of the line until a reflection returns to the > connection point of the stub. Then the total phase rotation within the > stub has reached 360-degrees. The complete reflection supplies a > reflected voltage wqual to the incident voltage. There is no difference > of potential or phase to evoke current. It`s the equivalent of a very > high impedance. Almost no more current is motivated to flow, once the > steady-state condition is reached. Richard, some people use that exact same argument to try to prove that no current is flowing in the middle of a transmission line where forward power equals reflected power. The strange thing is that the current 1/4WL away from that zero net current point is sky high. If the current 1/4WL away from your above source output terminals is indeed sky high, it is because the forward and reflected currents are in phase at that point which means they are 180 degrees out of phase at the source output which means they are both still there. If the net current is zero, all it means is that |Ifor|-|Iref| = 0. It tells us nothing about the magnitudes of Ifor and Iref. Trying to treat a distributed network as a lumped circuit can lead to mistakes. > Alexander Wing wrote on page 29 of "Transmission Lines, Antennas, and > Wave Guides": > "Suppression of Even Harmonics.- An application of a short-circuited > quarter-wavelength line is to suppress any unwanted even harmonics in > the output of a radio transmitter. A short-circuited one-quarter > wavelength long at the desired output frequency may be connected across > the output terminals or across the antenna feeder at any point without > placing much load on the transmitter at the fundamental or desired > output frequency, since at this frequency such a section has an > impedance ideally infinite, actually about 400,000 ohms." > > How much current flows into 400.000 ohms? How much current flows in the shorted end of the stub? Let's say we measure it at 2 amps. Where does that current come from? The 400,000 ohms is (Vfor+Vref)/(Ifor+Iref) at the mouth of the stub where V's and I's are phasors. Knowing that (Ifor+Iref) is a small value doesn't tell us anything about the magnitudes of Ifor and Iref except that they are nearly equal as is always the case for a low-loss stub. Knowing (Inet=|Ifor|-|Iref|) is small doesn't tell us a thing about the magnitude of (|Ifor|+|Iref|) that exists at the shorted end of the stub. Does that make sense? -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- Article: 216286 of rec.radio.amateur.antenna From: "Fred W4JLE" Subject: You might be an old timer Date: Sat, 13 Aug 2005 18:00:21 -0400 Message-ID: You might be an old time if you can answer the following, with out diving into your library. Which of the following is NOT a rectifier? a. 3B24 b. 80 c. 3C24 d. 6H6 Steel wool was once touted as a good material to make which of the following? a. Choke Balun b. AF shielding c. Linear capacitors d. Radials for short virticals Feel free to add your own favorite... Article: 216287 of rec.radio.amateur.antenna From: Walter Maxwell Subject: Re: You might be an old timer Message-ID: <3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com> References: Date: Sat, 13 Aug 2005 18:14:53 -0400 On Sat, 13 Aug 2005 18:00:21 -0400, "Fred W4JLE" wrote: >You might be an old time if you can answer the following, with out diving >into your library. > >Which of the following is NOT a rectifier? >a. 3B24 >b. 80 >c. 3C24 >d. 6H6 > >Steel wool was once touted as a good material to make which of the >following? > >a. Choke Balun >b. AF shielding >c. Linear capacitors >d. Radials for short virticals > >Feel free to add your own favorite... > Good ones, Fred, 3B24 and 3C24 are not rectifiers. However, some moron claimed in QST that steel wool was just as good as ferrite for making choke baluns, but I've forgotten who the lunkhead at the League was who believed him, and allowed stupid idea to be published. I complained to the League editors, who unbelieveably said 'Prove It'. So I bought some steel wool and made two back to back baluns with it and made measurements of common mode currents. The measurements proved that the steel wool had absolutely no choking effect. I reported the results of the measurements to the editors at the League, but I can't remember whether they did anything about refuting the original incorrect material. Perhaps your memory is better than mine on this issue. Walt, W2DU Article: 216288 of rec.radio.amateur.antenna From: Big Endian Subject: Re: Removal of Morse Code from Amateur License Requirements... References: <42FC018E.E4C00667@earthlink.net> <1123817805_9029@spool6-east.superfeed.net> <1123969322_1319@spool6-east.superfeed.net> Message-ID: Date: Sat, 13 Aug 2005 23:44:34 GMT In article <1123969322_1319@spool6-east.superfeed.net>, Cecil Moore wrote: > Big Endian wrote: > > > Cecil Moore wrote: > >>Real hams do DSP filtering at IF. > > > > I thought you were an antenna guy. > > Believe it or not, I have at least two areas > of interest. :-) I have more than one also, LOL. I like your posts on antenna NG. Hang in there. Article: 216289 of rec.radio.amateur.antenna From: "Fred W4JLE" References: <3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com> Subject: Re: You might be an old timer Date: Sat, 13 Aug 2005 19:58:14 -0400 Message-ID: <458a7$42fe8952$97d55c26$21961@ALLTEL.NET> Close Walt, only the 3C24 was not a rectifier. Sit back, light up the pipe, and remember the purple glow of the 3B24. You were right on about the steel wool. I was wondering how many would remember the dufus that was trying to tell us that steel wool and a paper towel roll was as good as ferrites. I also wrote a letter to editor. I was a bit more sarcastic requesting the B/H curves of steel wool. "Walter Maxwell" wrote in message news:3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com... > On Sat, 13 Aug 2005 18:00:21 -0400, "Fred W4JLE" > wrote: > > >You might be an old time if you can answer the following, with out diving > >into your library. > > > >Which of the following is NOT a rectifier? > >a. 3B24 > >b. 80 > >c. 3C24 > >d. 6H6 > > > >Steel wool was once touted as a good material to make which of the > >following? > > > >a. Choke Balun > >b. AF shielding > >c. Linear capacitors > >d. Radials for short virticals > > > >Feel free to add your own favorite... > > > > Good ones, Fred, 3B24 and 3C24 are not rectifiers. > > However, some moron claimed in QST that steel wool was just as good as > ferrite for making choke baluns, but I've forgotten who the lunkhead > at the League was who believed him, and allowed stupid idea to be > published. > > I complained to the League editors, who unbelieveably said 'Prove It'. > So I bought some steel wool and made two back to back baluns with it > and made measurements of common mode currents. The measurements proved > that the steel wool had absolutely no choking effect. > > I reported the results of the measurements to the editors at the > League, but I can't remember whether they did anything about refuting > the original incorrect material. Perhaps your memory is better than > mine on this issue. > > Walt, W2DU Article: 216290 of rec.radio.amateur.antenna From: "H. Adam Stevens, NQ5H" Subject: Re: You might be an old timer Date: Sat, 13 Aug 2005 19:17:45 -0500 Message-ID: <11ft3d9222qbua3@corp.supernews.com> References: <3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com> <458a7$42fe8952$97d55c26$21961@ALLTEL.NET> Fascinating. Steel wool is mostly empty space. 73 H. "Fred W4JLE" wrote in message news:458a7$42fe8952$97d55c26$21961@ALLTEL.NET... > Close Walt, only the 3C24 was not a rectifier. Sit back, light up the > pipe, > and remember the purple glow of the 3B24. You were right on about the > steel > wool. I was wondering how many would remember the dufus that was trying to > tell us that steel wool and a paper towel roll was as good as ferrites. > > I also wrote a letter to editor. I was a bit more sarcastic requesting the > B/H curves of steel wool. > > "Walter Maxwell" wrote in message > news:3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com... >> On Sat, 13 Aug 2005 18:00:21 -0400, "Fred W4JLE" >> wrote: >> >> >You might be an old time if you can answer the following, with out >> >diving >> >into your library. >> > >> >Which of the following is NOT a rectifier? >> >a. 3B24 >> >b. 80 >> >c. 3C24 >> >d. 6H6 >> > >> >Steel wool was once touted as a good material to make which of the >> >following? >> > >> >a. Choke Balun >> >b. AF shielding >> >c. Linear capacitors >> >d. Radials for short virticals >> > >> >Feel free to add your own favorite... >> > >> >> Good ones, Fred, 3B24 and 3C24 are not rectifiers. >> >> However, some moron claimed in QST that steel wool was just as good as >> ferrite for making choke baluns, but I've forgotten who the lunkhead >> at the League was who believed him, and allowed stupid idea to be >> published. >> >> I complained to the League editors, who unbelieveably said 'Prove It'. >> So I bought some steel wool and made two back to back baluns with it >> and made measurements of common mode currents. The measurements proved >> that the steel wool had absolutely no choking effect. >> >> I reported the results of the measurements to the editors at the >> League, but I can't remember whether they did anything about refuting >> the original incorrect material. Perhaps your memory is better than >> mine on this issue. >> >> Walt, W2DU > > Article: 216291 of rec.radio.amateur.antenna From: Roy Lewallen Subject: Re: You might be an old timer Date: Sat, 13 Aug 2005 17:25:05 -0700 Message-ID: <11ft3r2smgk0jb2@corp.supernews.com> References: Fred W4JLE wrote: > . . . > Feel free to add your own favorite... How often should you clean your screen grids? a. Daily b. Weekly c. Monthly d. Any time a grid leak is detected Article: 216292 of rec.radio.amateur.antenna From: Roy Lewallen Subject: Re: You might be an old timer Date: Sat, 13 Aug 2005 17:38:12 -0700 Message-ID: <11ft4jm3hlk0b38@corp.supernews.com> References: <3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com> Walter Maxwell wrote: > . . . > However, some moron claimed in QST that steel wool was just as good as > ferrite for making choke baluns, but I've forgotten who the lunkhead > at the League was who believed him, and allowed stupid idea to be > published. > > I complained to the League editors, who unbelieveably said 'Prove It'. > So I bought some steel wool and made two back to back baluns with it > and made measurements of common mode currents. The measurements proved > that the steel wool had absolutely no choking effect. > > I reported the results of the measurements to the editors at the > League, but I can't remember whether they did anything about refuting > the original incorrect material. Perhaps your memory is better than > mine on this issue. > > Walt, W2DU The results of your measurements were published in "Hints & Kinks" in September 1993 QST. According to the editorial comment accompanying it, you were prompted to make the measurements by Tom Rauch, W8JI, who had done some measurements which indicated that the steel wool balun was ineffective. The Hints & Kinks editor at the time, who had accepted both the original contribution by Curt Wilson, W0KKQ and yours, was Dave Newkirk, WJ1Z. Anyone interested in learning more about it should read the Hints & Kinks submissions and note Dave's added editiorial comments. Roy Lewallen, W7EL Article: 216293 of rec.radio.amateur.antenna From: "Fred W4JLE" References: <3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com> <11ft4jm3hlk0b38@corp.supernews.com> Subject: Re: You might be an old timer Date: Sat, 13 Aug 2005 20:56:07 -0400 Message-ID: <29df1$42fe96ae$97d55c26$31236@ALLTEL.NET> I believe the "steel wool" balun showed up in one of the handbooks as well. "Roy Lewallen" wrote in message news:11ft4jm3hlk0b38@corp.supernews.com... > Walter Maxwell wrote: > > . . . > > However, some moron claimed in QST that steel wool was just as good as > > ferrite for making choke baluns, but I've forgotten who the lunkhead > > at the League was who believed him, and allowed stupid idea to be > > published. > > > > I complained to the League editors, who unbelieveably said 'Prove It'. > > So I bought some steel wool and made two back to back baluns with it > > and made measurements of common mode currents. The measurements proved > > that the steel wool had absolutely no choking effect. > > > > I reported the results of the measurements to the editors at the > > League, but I can't remember whether they did anything about refuting > > the original incorrect material. Perhaps your memory is better than > > mine on this issue. > > > > Walt, W2DU > > The results of your measurements were published in "Hints & Kinks" in > September 1993 QST. According to the editorial comment accompanying it, > you were prompted to make the measurements by Tom Rauch, W8JI, who had > done some measurements which indicated that the steel wool balun was > ineffective. The Hints & Kinks editor at the time, who had accepted both > the original contribution by Curt Wilson, W0KKQ and yours, was Dave > Newkirk, WJ1Z. Anyone interested in learning more about it should read > the Hints & Kinks submissions and note Dave's added editiorial comments. > > Roy Lewallen, W7EL Article: 216294 of rec.radio.amateur.antenna From: Roy Lewallen Subject: Re: You might be an old timer Date: Sat, 13 Aug 2005 18:52:14 -0700 Message-ID: <11ft8uft6mbg6c8@corp.supernews.com> References: <3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com> <11ft4jm3hlk0b38@corp.supernews.com> Wes Stewart wrote: > > One legitimate ;) use for steel wool was what we used it for as kids. > > When the cops cited us with a repair order for a too loud exhaust > system on our hot rods, we would stuff steel wool up the pipe and > secure it with a rusty nail in cross-drilled holes. > > We would then find a handy cop and ask him to sign off that we had > fixed the problem. He would usually ask us to rev up the engine and > we would hope like hell that the steel wool didn't come flying out at > the wrong time. I think most cops were on to this but they played > along. Here's a ham-radio related use. I've got a bunch of it stuffed into the ends of the buried PVC pipes carrying my feedlines into the back yard, in an attempt to keep the rodents from using it as a highway. Seems to be working so far. . . Roy Lewallen, W7EL Article: 216295 of rec.radio.amateur.antenna From: dplatt@radagast.org (Dave Platt) Subject: Re: You might be an old timer Date: Sun, 14 Aug 2005 02:49:39 -0000 Message-ID: <11ftca35810psc4@corp.supernews.com> References: <11ft3r2smgk0jb2@corp.supernews.com> >How often should you clean your screen grids? >a. Daily >b. Weekly >c. Monthly >d. Any time a grid leak is detected I resist the suggestion that answer [d] is correct. -- Dave Platt AE6EO Hosting the Jade Warrior home page: http://www.radagast.org/jade-warrior I do _not_ wish to receive unsolicited commercial email, and I will boycott any company which has the gall to send me such ads! Article: 216296 of rec.radio.amateur.antenna Subject: Re: The Extreme Failure of Poor Concepts in Discussing Thin Layer From: Cecil Moore Date: Sat, 13 Aug 2005 22:34:38 -0500 Message-ID: <1123990633_1749@spool6-east.superfeed.net> References: <1123784374_8005@spool6-east.superfeed.net> <19367-42FE40DB-199@storefull-3251.bay.webtv.net> <1123970428_1369@spool6-east.superfeed.net> Richard Clark wrote: > Cecil Moore wrote: >>some people use that exact same argument to try to prove >>that no current is flowing in the middle of a transmission line > > Or uncanceled reflections brighter than the sun are black. In a lossless system sourced by monochromatic coherent light, if the 1st medium is air and if the index of refraction of the 3rd medium is the square of the index of refraction of the 1/4WL 2nd medium, then all reflections are canceled in the 1st medium. That's one of the rules of optics for non-reflective coatings. -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- Article: 216297 of rec.radio.amateur.antenna Subject: Re: The Extreme Failure of Poor Concepts in Discussing Thin Layer From: Cecil Moore Date: Sat, 13 Aug 2005 22:51:37 -0500 Message-ID: <1123991653_1767@spool6-east.superfeed.net> References: <1123784374_8005@spool6-east.superfeed.net> <19367-42FE40DB-199@storefull-3251.bay.webtv.net> Richard Harrison wrote: > Cecil, W5DXP wrote: > "Net current doesn`t flow." > > How much current flows into 400.000 ohms? Let's take a look at a simplified system. The SGCL source is a signal generator equipped with a circulator and load resistor. Each segment in the following 50 ohm lossless coax is 1/4WL long. |--------1.25WL 50 ohm coax-------| 200W SGCL------A------B------C------D------short The signal generator is sourcing 200W and the circulator load resistor is dissipating 200W. What is the net current at the short and at A and C? What is the net voltage at D, B, and the source? What is the forward power and reflected power? What is the net current at the signal generator output? What magnitude of current is the signal generator sourcing? What magnitude of current is flowing through the circulator load resistor? What is the phase difference between the forward current and reflected current? -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- Article: 216298 of rec.radio.amateur.antenna From: "Michael Herron" References: Subject: Re: 2005 Silverado truck radio install questions. Message-ID: Date: Sun, 14 Aug 2005 04:16:36 GMT Probably not a bad idea really! On the previous truck I had, It was a lot of messing around to figure out where the hole should be made and I did a so so job of the hole with of all things a paddle bit. The cable did route easily though. That might not be the case this time! Since they do it all the time they would know just where the best place to make the hole is. "Bob Miller" wrote in message news:unbtf1hkuke13ld2hircrmfrml6qo0d29e@4ax.com... > On Thu, 11 Aug 2005 16:52:59 GMT, "Michael Herron" > wrote: > >>Anyone install a 2/440 rig in a 2005 Silverado? I will be soon and was >>just >>wondering if anyone had been through it and had any advice that may help. >>Where you can route power cables or coax throught the firewall. Perhaps a >>good place you can pick up power form under the dash instead of going to >>the >>battery. If I decide to roof mount an antenna, what is the best way to >>make >>the hole for an NMO mount in the roof? > > Well, you can roll your own, but the easiest way is to just go to a > shop that installs business radios, and have them make the hole and > run a piece of coax to wherever you want it -- they do it every day. > > bob > k5qwg > >> Any experience with HF in the 2005 >>Silverado? Noise problems? Any RFI getting into any components of the >>trucks >>electronics? >>I have an IC-706 and a screwdriver antenna I may want to use in it. I had >>no >>problems in my old 1990 truck but not much electronics in it compared to >>the >>2005 (the employee discount GOT me)!! Thanks, Mike K7MH. >> > Article: 216299 of rec.radio.amateur.antenna From: "Michael Herron" References: Subject: Re: Buddipole antenna Message-ID: <1GzLe.602976$cg1.523293@bgtnsc04-news.ops.worldnet.att.net> Date: Sun, 14 Aug 2005 04:22:21 GMT What or how do you intend to use it? Portable mobile or? If use is when portable from a mobile situation, a decent screwdriver antenna will outperform it bigtime!! "Yves Dussault" wrote in message news:kmf9f15soctesl0eacofcm5ojhudv5f9r0@4ax.com... > I'm thinking of getting a Buddipole antenna. > I would loke comments on that antenna. > Thanks. > VE2ATD Article: 216300 of rec.radio.amateur.antenna From: "Ed Price" References: <3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com> <458a7$42fe8952$97d55c26$21961@ALLTEL.NET> <11ft3d9222qbua3@corp.supernews.com> Subject: Re: You might be an old timer Message-ID: Date: Sat, 13 Aug 2005 22:31:02 -0700 "H. Adam Stevens, NQ5H" wrote in message news:11ft3d9222qbua3@corp.supernews.com... > Fascinating. > Steel wool is mostly empty space. > 73 > H. Even more empty after the first spark! -- Ed WB6WSN El Cajon, CA USA Article: 216301 of rec.radio.amateur.antenna From: "Ed Price" References: <3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com> <11ft4jm3hlk0b38@corp.supernews.com> <11ft8uft6mbg6c8@corp.supernews.com> Subject: Re: You might be an old timer Message-ID: <7KALe.1697$Us5.214@fed1read02> Date: Sat, 13 Aug 2005 22:34:59 -0700 "Wes Stewart" wrote in message news:eibtf1ttq1mudcaiga3cj96gefaelrkpfd@4ax.com... > On Sat, 13 Aug 2005 18:52:14 -0700, Roy Lewallen > wrote: > > [snip] >> >>Here's a ham-radio related use. I've got a bunch of it stuffed into the >>ends of the buried PVC pipes carrying my feedlines into the back yard, >>in an attempt to keep the rodents from using it as a highway. Seems to >>be working so far. . . >> >>Roy Lewallen, W7EL > > Down here in the desert the pack rats would just say, "Thank you very > much, do you have any more?" > > When my wife's office at Hughes had a problem with rodents coming > through an A/C receptacle in an exterior wall the plant maintenance > guys used either copper or bronze wool. Seems to poison them. > > My problem isn't rodents in the house, it's scorpions. Killed two of > the things just last night. I'm remodeling a bathroom, where most of > them show up. I told my wife I think I'll install some UV lighting so > I can see them easier. (They fluoresce under UV.) Wes, what's the preferred scorpion killing technique; you use a hammer or what? -- Ed WB6WSN El Cajon, CA USA Article: 216302 of rec.radio.amateur.antenna From: Jim - NN7K Subject: Re: You might be an old timer References: <3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com> <11ft4jm3hlk0b38@corp.supernews.com> <11ft8uft6mbg6c8@corp.supernews.com> <7KALe.1697$Us5.214@fed1read02> Message-ID: Date: Sun, 14 Aug 2005 07:37:27 GMT Ed Price wrote: > "Wes Stewart" wrote in message > news:eibtf1ttq1mudcaiga3cj96gefaelrkpfd@4ax.com... > >>On Sat, 13 Aug 2005 18:52:14 -0700, Roy Lewallen >>wrote: >> >>[snip] >> >>>Here's a ham-radio related use. I've got a bunch of it stuffed into the >>>ends of the buried PVC pipes carrying my feedlines into the back yard, >>>in an attempt to keep the rodents from using it as a highway. Seems to >>>be working so far. . . >>> >>>Roy Lewallen, W7EL Better than just steel wool- is SOS pads- had Deer Mice (carriers of hantavirus) running between buildings, in wire ducts- plugged with SOS pads, stopped them. Also had professional folks, that used a gooey substance, that (according to them !) tastes bad to rodents for treating wood, so they didn't like to chew thru walls. Apparently the bad taste of the soap, and the goo, along with the steel wool does a good job of slowing them down-- It is a bit disconcerting to open the control head of a generator, and see 8-9 pairs of eyeballs stareing back at you! Jim NN7K Article: 216303 of rec.radio.amateur.antenna From: "Reg Edwards" Subject: New Program. L-match Networks. Date: Sun, 14 Aug 2005 09:02:59 +0000 (UTC) Message-ID: Occasionally it may be useful to deduce the value of the terminating impedance of an L-match network when only the values of the coil (uH) and capacitor (pF) and the frequency are known. Program L_NETWK does exactly that. The terminating impedance is often the input impedance of the transmission line leading to an antenna when an impedance measuring device is not available. Whereas it is possible to estimate the values of the coil and capacitor settings from a visual examination. The L and C components having been set by using the SWR meter or TLI. The program also assists with assessing the range of terminating impedances which can be accomodated by a given L-tuner. Without such assistance a considerable strain is placed on an ordinary person's imagination. Download in a few seconds program L_NETWK from the website below and run immediately. No unzipping inconvenience. ---- ........................................................... Regards from Reg, G4FGQ For Free Radio Design Software go to http://www.btinternet.com/~g4fgq.regp ........................................................... Article: 216304 of rec.radio.amateur.antenna Subject: Re: The Extreme Failure of Poor Concepts in Discussing Thin Layer From: Cecil Moore Date: Sun, 14 Aug 2005 07:23:56 -0500 Message-ID: <1124022392_3277@spool6-east.superfeed.net> References: <1123784374_8005@spool6-east.superfeed.net> <19367-42FE40DB-199@storefull-3251.bay.webtv.net> <1123970428_1369@spool6-east.superfeed.net> <1123990633_1749@spool6-east.superfeed.net> <6vitf1llhgcbkqd80114nte1uq6duein94@4ax.com> Richard Clark wrote: > Cecil Moore wrote: >>then all reflections are canceled in the 1st medium > > "all," of course, if you discard precision to force the theory to fit > the expectations. > About as respectable as E = M · C² ±3dB Given an ideal system with carefully selected boundary conditions, all reflections are canceled. That is a concept, not something that can be achieved in reality. Your height and weight on your driver's license is not 100% accurate either but it is good enough for government work. -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! >100,000 Newsgroups ---= East/West-Coast Server Farms - Total Privacy via Encryption =--- Article: 216305 of rec.radio.amateur.antenna From: Sonny Hood Subject: Beams FS Message-ID: Date: Sun, 14 Aug 2005 09:56:46 -0400 1. Mosley Pro-57-A 7 element 5 Band Beam w/ 24-2" foot boom. Better than 9 dBd on 10 meters, greater than 8.3 dBd gain on 12, 15, 17 & 20 meters. Rated a 5 out of 10, needs repair to 3/8" phasing lines. Elements & boom marked for easy assembly. The antenna weights 90 lbs.* For PICK UP in Chesapeake, Virginia, along Rt. 17 just below Portsmouth. $50.00 2. Commercial Made Heavy Duty 8 element Vertical Beam converted to 440 MHz, average SWR across 70 centimeter band is below 1.3: 1. The antenna is rated an 8 out of 10. Also for PICK UP in Chesapeake, Va. $35.00 or Best Offer . The possibility exists that the antennas can be taken to the Shelby Hamfest if an interested party commits to purchase. . Gasoline ain't Cheap, now! E-MAIL to K4WYS.COX.NET OR Telephone (757) 487-0357 * Beam is worth $36.00 as scrap aluminum Article: 216306 of rec.radio.amateur.antenna From: "Caveat Lector" References: <11ft3r2smgk0jb2@corp.supernews.com> <11ftca35810psc4@corp.supernews.com> Subject: Re: You might be an old timer Message-ID: Date: Sun, 14 Aug 2005 07:09:55 -0700 "Dave Platt" wrote in message news:11ftca35810psc4@corp.supernews.com... > >How often should you clean your screen grids? >>a. Daily >>b. Weekly >>c. Monthly >>d. Any time a grid leak is detected When it gets clogged with electrons -- CL -- I doubt, therefore I might be ! Article: 216307 of rec.radio.amateur.antenna From: "Caveat Lector" References: <3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com> <11ft4jm3hlk0b38@corp.supernews.com> <11ft8uft6mbg6c8@corp.supernews.com> <7KALe.1697$Us5.214@fed1read02> Subject: Re: You might be an old timer Message-ID: <2oILe.581$uO2.549@fed1read07> Date: Sun, 14 Aug 2005 07:17:38 -0700 Regarding steel wool, I recall an old old radio catalog selling an antenna cleaning kit to shine up your antenna wire -- claims it improved reception ! Don't recall if it was steel wool or a fine sandpaper But when you put up a brand new shiny antenna -- does it seem to work better, just like your car runs better after a wash and wax job (;-) -- CL -- I doubt, therefore I might be ! From ¥ Wed Aug 17 10:22:38 EDT 2005 Article: 216308 of rec.radio.amateur.antenna From: Justín Käse Newsgroups: rec.radio.amateur.antenna Subject: DP-GH62 Mod Summary: full moon fantasy Organization: AOL http://www.aol.com Reply-To: ¥ Expires: +7days Message-ID: <43005c26.1762438@chupacabra> X-No-Archive: yes MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lines: 5 NNTP-Posting-Host: 66.123.255.42 X-Complaints-To: abuse@prodigy.net X-Trace: newssvr19.news.prodigy.com 1124031540 ST000 66.123.255.42 (Sun, 14 Aug 2005 10:59:00 EDT) NNTP-Posting-Date: Sun, 14 Aug 2005 10:59:00 EDT X-UserInfo1: TSUGW[SDCPR_BFD[LZKJOPHAWB\^PBQLGPQRZ\YIJYWZUYICD^RAQBKZQTZTX\_I[^G_KGFNON[ZOE_AZNVO^\XGGNTCIRPIJH[@RQKBXLRZ@CD^HKANYVW@RLGEZEJN@\_WZJBNZYYKVIOR]T]MNMG_Z[YVWSCH_Q[GPC_A@CARQVXDSDA^M]@DRVUM@RBM Date: Sun, 14 Aug 2005 14:59:00 GMT Path: news1.isis.unc.edu!canoe.uoregon.edu!newshub.sdsu.edu!newscon06.news.prodigy.com!prodigy.net!newsmst01b.news.prodigy.com!prodigy.com!postmaster.news.prodigy.com!newssvr19.news.prodigy.com.POSTED!4543f3a2!not-for-mail Xref: news1.isis.unc.edu rec.radio.amateur.antenna:216308 Does anyone know the mod to increase power acceptance of the Diamond DP-GH62 six meter antenna from 200w to 500w? -- JK Article: 216309 of rec.radio.amateur.antenna From: "W5GT" Subject: WTB: Tower DFW area Message-ID: Date: Sun, 14 Aug 2005 10:05:48 -0500 Looking for a tower in the Dallas Ft Worth area. About 40' free standing is all I need. Will negotiate for included rotor if available. Dave - W5GT North Richland Hills, Texas Article: 216310 of rec.radio.amateur.antenna From: "Michael" Subject: Re: Sony kitchen radio antenna Date: Sun, 14 Aug 2005 10:35:18 -0700 Message-ID: <11fup7jeb7nr7a2@corp.supernews.com> References: "jeplett" wrote in message news:jeplett.1tmc08@news.radiobanter.com... > > Hi radio folk. Not sure if this is the right forum for this post, but > here goes: > > I have one of those white under-cabinet Sony kitchen radio / cd > players. The radio uses a digital tuner. They have notoriously poor > radio reception, and the internet is full of posts by people ranting > about how Sony could sell such a poor radio. > > Rather than rant, I thought I'd ask you experts if there's anything > that can be done to improve the reception. I understand the power cord > is used as the antenna. I've tried stringing-up an extension cord to > the power cord, with no improved reception. Could I open it up and > attach an external antenna? If so, how would I do this? Any ideas, or > experience with this particular problem? > > Regards, > > > -- > jeplett One way to do this is fairly simple. wind a flat coil. Take a piece of hard paper or cardboard and cut it into aabout a 6 inch circle. Cut notches all along the outer edge. Now wind about 20 turns of small wire through these outer edge notches. Place it on the bottom of your cupboard just above your radio. Attach an antenna (the best you can manage) to one terminal and your water pipe ground to the other terminal. This will do wonders for reception. You can still stack dishes on top of it. It is a shame that sensitive am radios are so rare these days. Michael W0EZI Article: 216311 of rec.radio.amateur.antenna From: Allodoxaphobia Subject: Re: Sony kitchen radio antenna Date: 14 Aug 2005 15:59:53 GMT Message-ID: References: <11fup7jeb7nr7a2@corp.supernews.com> On Sun, 14 Aug 2005 10:35:18 -0700, Michael wrote: > It is a shame that sensitive am radios are so rare these days. Well, they're not. But you have to dig them out of the dashboards of automobiles and rig up 12VDC power supplies for'em. Jonesy -- Marvin L Jones | jonz | W3DHJ | linux Pueblo, Colorado | @ | Jonesy | OS/2 __ 38.24N 104.55W | config.com | DM78rf | SK Article: 216312 of rec.radio.amateur.antenna From: Allodoxaphobia Subject: Re: DP-GH62 Mod Date: 14 Aug 2005 16:02:53 GMT Message-ID: References: <43005c26.1762438@chupacabra> On Sun, 14 Aug 2005 14:59:00 GMT, Justín Käse wrote: > Does anyone know the mod to increase power acceptance of the Diamond > DP-GH62 six meter antenna from 200w to 500w? Sure, but it involves locating two 250 Watt, non-inductive resistors -- one of 25 ohm and one of 50 ohm. Hard to find. Pricey. Jonesy -- Marvin L Jones | jonz | W3DHJ | linux Pueblo, Colorado | @ | Jonesy | OS/2 __ 38.24N 104.55W | config.com | DM78rf | SK Article: 216313 of rec.radio.amateur.antenna From: Thrasher Remailer Date: 14 Aug 2005 16:27:44 -0000 Message-ID: Subject: Re: DP-GH62 Mod References: <43005c26.1762438@chupacabra> You could use the resistors. But if you still want the antenna to preform correctly, do the following. For 500 watt (FM only; 52-54 MHz) capability, contact Diamond Customer Service at (760) 744-0900 for further information. Article: 216314 of rec.radio.amateur.antenna From: Walter Maxwell Subject: Re: You might be an old timer Message-ID: References: <3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com> <458a7$42fe8952$97d55c26$21961@ALLTEL.NET> Date: Sun, 14 Aug 2005 12:46:10 -0400 Interesting, Fred, I wasn't aware that the 3B24 was a gas-filled rectifier. However, I used the 80, the 81 (a half-wave rectifier with greater current capability than the 80), the 83 (a full-wave mercury vapor rectifier) The 5Y3 was a later version of the 80, with octal pin basing. I also used a whole bunch of 866's before SSB came along. They powered a 203-A in one of my early rigs, a 250-TH in a later rig in 1935, and a pair of HK-54's in another in 1937. (Or were they HK-354's, I can't remember, yeah, 354's) On Sat, 13 Aug 2005 19:58:14 -0400, "Fred W4JLE" wrote: >Close Walt, only the 3C24 was not a rectifier. Sit back, light up the pipe, >and remember the purple glow of the 3B24. You were right on about the steel >wool. I was wondering how many would remember the dufus that was trying to >tell us that steel wool and a paper towel roll was as good as ferrites. > >I also wrote a letter to editor. I was a bit more sarcastic requesting the >B/H curves of steel wool. > Do you still have a copy of that letter? I'd like to see a copy if you do. Walt,W2DU Article: 216315 of rec.radio.amateur.antenna From: Walter Maxwell Subject: Re: You might be an old timer Message-ID: References: <3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com> <11ft4jm3hlk0b38@corp.supernews.com> Date: Sun, 14 Aug 2005 12:47:49 -0400 Thanks, Roy, I had forgetten where the stuff was published. Walt On Sat, 13 Aug 2005 17:38:12 -0700, Roy Lewallen wrote: >Walter Maxwell wrote: >> . . . >> However, some moron claimed in QST that steel wool was just as good as >> ferrite for making choke baluns, but I've forgotten who the lunkhead >> at the League was who believed him, and allowed stupid idea to be >> published. >> >> I complained to the League editors, who unbelieveably said 'Prove It'. >> So I bought some steel wool and made two back to back baluns with it >> and made measurements of common mode currents. The measurements proved >> that the steel wool had absolutely no choking effect. >> >> I reported the results of the measurements to the editors at the >> League, but I can't remember whether they did anything about refuting >> the original incorrect material. Perhaps your memory is better than >> mine on this issue. >> >> Walt, W2DU > >The results of your measurements were published in "Hints & Kinks" in >September 1993 QST. According to the editorial comment accompanying it, >you were prompted to make the measurements by Tom Rauch, W8JI, who had >done some measurements which indicated that the steel wool balun was >ineffective. The Hints & Kinks editor at the time, who had accepted both >the original contribution by Curt Wilson, W0KKQ and yours, was Dave >Newkirk, WJ1Z. Anyone interested in learning more about it should read >the Hints & Kinks submissions and note Dave's added editiorial comments. > >Roy Lewallen, W7EL Article: 216316 of rec.radio.amateur.antenna From: Walter Maxwell Subject: Re: Congrats to K6MHE Message-ID: References: Date: Sun, 14 Aug 2005 12:51:18 -0400 On Sat, 13 Aug 2005 17:55:25 -0700, Wes Stewart wrote: >Our own Danny Richardson has the lead article in the September issue >of QST. > >Nicely done. Indeed, Danny !!! Excellent article ! I just received my QST yesterday PM, and hadn't looked at it until seeing Wes' posting. Your matching idea is terrific, especially for portable operation. Congrats! Walt, W2DU Article: 216317 of rec.radio.amateur.antenna From: "David G. Nagel" Subject: Re: You might be an old timer Date: Sun, 14 Aug 2005 11:59:28 -0500 Message-ID: <11fuu3or347de48@corp.supernews.com> References: <3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com> <11ft4jm3hlk0b38@corp.supernews.com> <11ft8uft6mbg6c8@corp.supernews.com> <7KALe.1697$Us5.214@fed1read02> <2oILe.581$uO2.549@fed1read07> Caveat Lector wrote: > Regarding steel wool, I recall an old old radio catalog selling an antenna > cleaning kit to shine up your antenna wire -- claims it improved reception ! > > Don't recall if it was steel wool or a fine sandpaper > > But when you put up a brand new shiny antenna -- does it seem to work > better, just like your car runs better after a wash and wax job (;-) > Mine always gets wet in the rain that comes immediately after the wash job. ;^).... Article: 216318 of rec.radio.amateur.antenna From: "W5GT" References: Subject: Re: Tower DFW area Message-ID: Date: Sun, 14 Aug 2005 12:05:08 -0500 My email address is actually w5gt@arrl.net Dave - W5GT "W5GT" wrote in message news:d5JLe.4130$rc6.1487@fe03.lga... > Looking for a tower in the Dallas Ft Worth area. About 40' free standing is > all I need. Will negotiate for included rotor if available. > > Dave - W5GT > North Richland Hills, Texas > > Article: 216319 of rec.radio.amateur.antenna From: "Fred W4JLE" References: <11ft3r2smgk0jb2@corp.supernews.com> <11ftca35810psc4@corp.supernews.com> Subject: Re: You might be an old timer Date: Sun, 14 Aug 2005 13:18:11 -0400 Message-ID: I can't belive no one has put up the correct answer. When grid leak becomes a problem, adding a dynatron oscillator, with it's negative resistance absorbs all the leaked electrons. New question: A Homotron is - a. An electron that has been given a positive charge b. An electron given a negative charge c. A queer electron that blows fuses d. Who knows, it wasn't in the list of questions I memorized. "Caveat Lector" wrote in message news:QgILe.578$uO2.273@fed1read07... > > "Dave Platt" wrote in message > news:11ftca35810psc4@corp.supernews.com... > > >How often should you clean your screen grids? > >>a. Daily > >>b. Weekly > >>c. Monthly > >>d. Any time a grid leak is detected > > When it gets clogged with electrons > -- > CL -- I doubt, therefore I might be ! > > Article: 216320 of rec.radio.amateur.antenna From: Walter Maxwell Subject: Re: You might be an old timer Message-ID: <610vf15u6i7iqcf9m3o8j82mbjuiue2f4v@4ax.com> References: <11ft3r2smgk0jb2@corp.supernews.com> <11ftca35810psc4@corp.supernews.com> Date: Sun, 14 Aug 2005 13:35:14 -0400 On Sun, 14 Aug 2005 13:18:11 -0400, "Fred W4JLE" wrote: >I can't belive no one has put up the correct answer. When grid leak becomes >a problem, adding a dynatron oscillator, with it's negative resistance >absorbs all the leaked electrons. > >New question: > >A Homotron is - >a. An electron that has been given a positive charge >b. An electron given a negative charge >c. A queer electron that blows fuses >d. Who knows, it wasn't in the list of questions I memorized. > The answer is both 'a' and 'c'. An electron that has a positive charge must be queer. Walt, W2DU Article: 216321 of rec.radio.amateur.antenna From: "Fred W4JLE" References: <3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com> <458a7$42fe8952$97d55c26$21961@ALLTEL.NET> Subject: Re: You might be an old timer Date: Sun, 14 Aug 2005 13:36:12 -0400 Message-ID: <4a9d$42ff812a$97d55c26$4664@ALLTEL.NET> Sorry, never made a copy of any letters of that type. I do now with e-mail, but in those days carbon paper had to be located manually :>) "Walter Maxwell" wrote in message news:phsuf11o981mfrablgg31rv4l3j9ub54ao@4ax.com... > >I also wrote a letter to editor. I was a bit more sarcastic requesting the > >B/H curves of steel wool. > > > Do you still have a copy of that letter? I'd like to see a copy if you > do. > > Walt,W2DU Article: 216322 of rec.radio.amateur.antenna From: Thrasher Remailer Date: 14 Aug 2005 18:15:10 -0000 Message-ID: Subject: Re: You might be an old timer References: You might be an old timer if your hamstick needs viagra to make contact. Article: 216323 of rec.radio.amateur.antenna From: "David G. Nagel" Subject: Re: You might be an old timer Date: Sun, 14 Aug 2005 15:25:23 -0500 Message-ID: <11fva5rt1ptbjaa@corp.supernews.com> References: <11ft3r2smgk0jb2@corp.supernews.com> <11ftca35810psc4@corp.supernews.com> <610vf15u6i7iqcf9m3o8j82mbjuiue2f4v@4ax.com> Walter Maxwell wrote: > On Sun, 14 Aug 2005 13:18:11 -0400, "Fred W4JLE" > wrote: > > >>I can't belive no one has put up the correct answer. When grid leak becomes >>a problem, adding a dynatron oscillator, with it's negative resistance >>absorbs all the leaked electrons. >> >>New question: >> >>A Homotron is - >>a. An electron that has been given a positive charge >>b. An electron given a negative charge >>c. A queer electron that blows fuses >>d. Who knows, it wasn't in the list of questions I memorized. >> > > The answer is both 'a' and 'c'. An electron that has a positive charge > must be queer. > > Walt, W2DU The correct answer is: none. A homotron has a neuter charge. Dave WD9BDZ Article: 216324 of rec.radio.amateur.antenna From: Bart Bailey Subject: Re: DP-GH62 Mod Message-ID: <4303b88b.3387612@bart.spawar.mil> References: <43005c26.1762438@chupacabra> Date: Sun, 14 Aug 2005 21:34:27 GMT In Message-ID: posted on 14 Aug 2005 16:02:53 GMT, Allodoxaphobia wrote: Begin >On Sun, 14 Aug 2005 14:59:00 GMT, Justín Käse wrote: >> Does anyone know the mod to increase power acceptance of the Diamond >> DP-GH62 six meter antenna from 200w to 500w? > >Sure, but it involves locating two 250 Watt, non-inductive resistors -- >one of 25 ohm and one of 50 ohm. Hard to find. Pricey. > >Jonesy Thanks, but I wasn't trying to re-create a *batwing resonator. *refers to a project that appeared in S9 magazine (mid 60's) just curious, is that what the folk up at RFParts San Marcos recommend, I haven't called them yet? -- Bart Article: 216325 of rec.radio.amateur.antenna From: Bart Bailey Subject: Re: DP-GH62 Mod Message-ID: <4304b8d8.3464810@bart.spawar.mil> References: <43005c26.1762438@chupacabra> Date: Sun, 14 Aug 2005 21:34:27 GMT In Message-ID: posted on 14 Aug 2005 16:27:44 -0000, Thrasher Remailer wrote: Begin >You could use the resistors. >But if you still want the antenna to preform correctly, do the >following. > >For 500 watt (FM only; 52-54 MHz) capability, > contact Diamond Customer Service at (760) 744-0900 for further >information. > > Or I could post the question on a related newsgroup and hope someone had already made that call. thanks just the same. FWIW: I think it involves replacing or removing a capacitor in the lower coil assembly, not sure though. -- Bart Article: 216326 of rec.radio.amateur.antenna From: "Wayne P. Muckleroy" References: Subject: Re: Removal of Morse Code from Amateur License Requirements... Message-ID: Date: Sun, 14 Aug 2005 21:44:12 GMT I think they should drop morse as a requirement and add flag signalling instead. You never know when we will have a mass power failure and gasoline shortage at the same exact time! Wayne (KC8UIO) "laborkei" wrote in message news:x_TJe.1297$Aq.917@bignews1.bellsouth.net... > Please visit this Link... > This is the future of our hobby... > > http://www.msu.edu/~volzmich/commenthelp.htm > > Step by Step instructions on how to leave comments with the FCC. > > -- > > > Article: 216327 of rec.radio.amateur.antenna From: Thrasher Remailer Date: 14 Aug 2005 22:09:00 -0000 Message-ID: <04788CCD38579.25625@reece.net.au> Subject: Re: DP-GH62 Mod References: <4304b8d8.3464810@bart.spawar.mil> Bart: I strongly suspect you are correct and, either the dielectric and/or construction/spacing of the cap plates, etc, is not sufficient to handle the rf voltage/current though it. Less likely would be the insulation/gauge of the inductor is not sufficent, or its' spacing away from other components is insufficient. Never hurts to consult all sources though... A Thrashed Ham. Article: 216328 of rec.radio.amateur.antenna From: "Fred W4JLE" References: Subject: Re: Removal of Morse Code from Amateur License Requirements... Date: Sun, 14 Aug 2005 18:11:14 -0400 Message-ID: Sending morse code with a signal light is faster than signal flags, especially at night. "Wayne P. Muckleroy" wrote in message news:MWOLe.60057$B52.56864@tornado.ohiordc.rr.com... > I think they should drop morse as a requirement and add flag signalling > instead. You never know when we will have a mass power failure and gasoline > shortage at the same exact time! > > Wayne (KC8UIO) > > "laborkei" wrote in message > news:x_TJe.1297$Aq.917@bignews1.bellsouth.net... > > Please visit this Link... > > This is the future of our hobby... > > > > http://www.msu.edu/~volzmich/commenthelp.htm > > > > Step by Step instructions on how to leave comments with the FCC. > > > > -- > > > > > > > > Article: 216329 of rec.radio.amateur.antenna From: "Ken Taylor" References: Subject: Re: Removal of Morse Code from Amateur License Requirements... Message-ID: Date: Mon, 15 Aug 2005 12:44:26 +1200 Sending may be faster with the flags, but receiving is a bit of a pain...... Ken "Fred W4JLE" wrote in message news:a276f$42ffc1ba$97d55c26$23528@ALLTEL.NET... > Sending morse code with a signal light is faster than signal flags, > especially at night. > > "Wayne P. Muckleroy" wrote in message > news:MWOLe.60057$B52.56864@tornado.ohiordc.rr.com... >> I think they should drop morse as a requirement and add flag signalling >> instead. You never know when we will have a mass power failure and > gasoline >> shortage at the same exact time! >> >> Wayne (KC8UIO) >> >> "laborkei" wrote in message >> news:x_TJe.1297$Aq.917@bignews1.bellsouth.net... >> > Please visit this Link... >> > This is the future of our hobby... >> > >> > http://www.msu.edu/~volzmich/commenthelp.htm >> > >> > Step by Step instructions on how to leave comments with the FCC. >> > >> > -- >> > >> > >> > >> >> > > Article: 216330 of rec.radio.amateur.antenna From: "Michael" Subject: Re: Sony kitchen radio antenna Date: Sun, 14 Aug 2005 19:44:15 -0700 Message-ID: <11fvpdrqct145ef@corp.supernews.com> References: <11fup7jeb7nr7a2@corp.supernews.com> "Allodoxaphobia" wrote in message news:slrndfuqjp.236j.bit-bucket@shell.config.com... > On Sun, 14 Aug 2005 10:35:18 -0700, Michael wrote: > >> It is a shame that sensitive am radios are so rare these days. > > Well, they're not. But you have to dig them out of the dashboards > of automobiles and rig up 12VDC power supplies for'em. > > Jonesy > -- > Marvin L Jones | jonz | W3DHJ | linux > Pueblo, Colorado | @ | Jonesy | OS/2 __ > 38.24N 104.55W | config.com | DM78rf | SK That is very true, but most people won't go to that kind of trouble. I have a Honda radio I pulled out of my 98 CRV. It is the most sensitive am radio I have ever seen. I am setting it up in my shop with an antenna because I live 54 miles from the nearest town. It pulls in stations a couple of hundred miles away in the daytime. I replaced it with an mp3 player. I really like my own music on a trip. Michael Article: 216331 of rec.radio.amateur.antenna From: Roy Lewallen Subject: Re: You might be an old timer Date: Sun, 14 Aug 2005 18:51:00 -0700 Message-ID: <11fvt86mjg7nnab@corp.supernews.com> References: <11ft3r2smgk0jb2@corp.supernews.com> <11ftca35810psc4@corp.supernews.com> Jim - NN7K wrote: > > Harkens back to the days of yore: > > Question ? The best way to prevent electrical shock is: ? > > Answer (think ) was D: Double indemnety Life Insurance ! > > (That was on one of the early commercial FCC Phone tests!) > Jim He speaks the truth -- I remember that one also. The passing score on those tests was 75%, but you only had to know the answers to 50% in order to pass. There were four choices to each question; two were of the quality of the one Jim quotes. So if you answered the half you knew, you had a 50-50 chance with the rest of them by throwing out the ridiculous answers and random guessing between the two that remained. (Actually, you could do better yet with even less real knowledge by using a little basic testmanship.) Roy Lewallen, W7EL Article: 216332 of rec.radio.amateur.antenna From: "J. Mc Laughlin" Subject: Re: You might be an old timer Date: Sun, 14 Aug 2005 22:10:22 -0400 Message-ID: <11fvuai9035uo06@corp.supernews.com> References: <11ft3r2smgk0jb2@corp.supernews.com> <11ftca35810psc4@corp.supernews.com> <11fvt86mjg7nnab@corp.supernews.com> Do not remember that question on my exam in the 50s. Do remember much huffing and puffing about the quality of the schematics that I had to draw and questions about B modulation (spark). Had to go to Detroit to take the exam. Entirely different city now. But then, you may have taken the exam before I did. Fortunately, licenses in those days did not have age information on them. Had a job with a radio station when I was underage - the owner, also a Scot, knew not to ask and I knew not to tell. Still can smell the mice that got RF burned in the ammeter shunts. Some of us are getting on...... 73 Mac N8TT -- J. Mc Laughlin; Michigan U.S.A. Home: JCM@Power-Net.Net "Roy Lewallen" wrote in message news:11fvt86mjg7nnab@corp.supernews.com... > Jim - NN7K wrote: > > > > Harkens back to the days of yore: > > > > Question ? The best way to prevent electrical shock is: ? > > > > Answer (think ) was D: Double indemnety Life Insurance ! > > > > (That was on one of the early commercial FCC Phone tests!) > > Jim > > He speaks the truth -- I remember that one also. > > The passing score on those tests was 75%, but you only had to know the > answers to 50% in order to pass. There were four choices to each > question; two were of the quality of the one Jim quotes. So if you > answered the half you knew, you had a 50-50 chance with the rest of them > by throwing out the ridiculous answers and random guessing between the > two that remained. (Actually, you could do better yet with even less > real knowledge by using a little basic testmanship.) > > Roy Lewallen, W7EL Article: 216333 of rec.radio.amateur.antenna From: Mike M. Subject: Re: APRS and voice - mobile configuration Message-ID: References: <1122054980.698869.195170@o13g2000cwo.googlegroups.com> Date: Mon, 15 Aug 2005 03:20:42 GMT On 22 Jul 2005 10:56:20 -0700, pgardella@gmail.com wrotF: >There are times when Google search is great, and others where it fails >me. This is one of those situations. > >I'm trying to find out what people recommend for handling both APRS and >voice radios in the same vehicle. I want to have two separate rigs, >one dedicated to APRS, the other for normal voice comms. I'm concerned >about receiver overload and frying one of the rigs when the other is >transmitting at high power. > >The rigs are modern (Yeasu FT-2800 for APRS and Yeasu FT-8900 for >voice). Would the intermod rejection of these two rigs protect them? >I'd rather not set up a cavity or other expensive filters. > >How do others have this setup in place? > >73, >patrick I'm running an FT-8800 for voice with a Comet CA-2x4SR on a trunk lid mount and run APRS with a 20W brick amp into a Hustler 5/8 on a hood lip mount. De- sense yes, damage not so far. I also have a dual band scanner antenna on the opposite side of the trunk lid and the FT-8800 nor the 75W V-8000 before it have hurt the scanner. Other radios may not be as tolerant of the overload. Article: 216334 of rec.radio.amateur.antenna From: "Fred W4JLE" References: <3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com> Subject: Re: You might be an old timer Date: Sun, 14 Aug 2005 23:34:48 -0400 Message-ID: <1a44a$43000d96$97d55c26$17394@ALLTEL.NET> Walt, I just went back and checked some old notes. I show I wrote a letter to the editor on the steel wool balun in 1977. I know Roy said 1993, but I "Walter Maxwell" wrote in message news:3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com... > On Sat, 13 Aug 2005 18:00:21 -0400, "Fred W4JLE" > wrote: > > >You might be an old time if you can answer the following, with out diving > >into your library. > > > >Which of the following is NOT a rectifier? > >a. 3B24 > >b. 80 > >c. 3C24 > >d. 6H6 > > > >Steel wool was once touted as a good material to make which of the > >following? > > > >a. Choke Balun > >b. AF shielding > >c. Linear capacitors > >d. Radials for short virticals > > > >Feel free to add your own favorite... > > > > Good ones, Fred, 3B24 and 3C24 are not rectifiers. > > However, some moron claimed in QST that steel wool was just as good as > ferrite for making choke baluns, but I've forgotten who the lunkhead > at the League was who believed him, and allowed stupid idea to be > published. > > I complained to the League editors, who unbelieveably said 'Prove It'. > So I bought some steel wool and made two back to back baluns with it > and made measurements of common mode currents. The measurements proved > that the steel wool had absolutely no choking effect. > > I reported the results of the measurements to the editors at the > League, but I can't remember whether they did anything about refuting > the original incorrect material. Perhaps your memory is better than > mine on this issue. > > Walt, W2DU Article: 216335 of rec.radio.amateur.antenna From: "Fred W4JLE" References: <3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com> <11ft4jm3hlk0b38@corp.supernews.com> Subject: Re: You might be an old timer Date: Sun, 14 Aug 2005 23:40:33 -0400 Message-ID: <68ff6$43000ef1$97d55c26$17640@ALLTEL.NET> Walt I went back through some old note books, according to my records I sent the letter to the editor in 1977. I know Roy says 93, but I have e-mails >from that period and knew it had to be earlier. Does that match your recollection? "Walter Maxwell" wrote in message news:cctuf1pkl29ic517rh25i3pio15i215t4g@4ax.com... > Thanks, Roy, I had forgetten where the stuff was published. > > Walt > > On Sat, 13 Aug 2005 17:38:12 -0700, Roy Lewallen > wrote: > > >Walter Maxwell wrote: > >> . . . > >> However, some moron claimed in QST that steel wool was just as good as > >> ferrite for making choke baluns, but I've forgotten who the lunkhead > >> at the League was who believed him, and allowed stupid idea to be > >> published. > >> > >> I complained to the League editors, who unbelieveably said 'Prove It'. > >> So I bought some steel wool and made two back to back baluns with it > >> and made measurements of common mode currents. The measurements proved > >> that the steel wool had absolutely no choking effect. > >> > >> I reported the results of the measurements to the editors at the > >> League, but I can't remember whether they did anything about refuting > >> the original incorrect material. Perhaps your memory is better than > >> mine on this issue. > >> > >> Walt, W2DU > > > >The results of your measurements were published in "Hints & Kinks" in > >September 1993 QST. According to the editorial comment accompanying it, > >you were prompted to make the measurements by Tom Rauch, W8JI, who had > >done some measurements which indicated that the steel wool balun was > >ineffective. The Hints & Kinks editor at the time, who had accepted both > >the original contribution by Curt Wilson, W0KKQ and yours, was Dave > >Newkirk, WJ1Z. Anyone interested in learning more about it should read > >the Hints & Kinks submissions and note Dave's added editiorial comments. > > > >Roy Lewallen, W7EL > Article: 216336 of rec.radio.amateur.antenna From: Roy Lewallen Subject: Re: You might be an old timer Date: Sun, 14 Aug 2005 21:16:27 -0700 Message-ID: <11g05otmhuualf3@corp.supernews.com> References: <11ft3r2smgk0jb2@corp.supernews.com> <11ftca35810psc4@corp.supernews.com> <11fvt86mjg7nnab@corp.supernews.com> <11fvuai9035uo06@corp.supernews.com> J. Mc Laughlin wrote: > . . . > But then, you may have taken the exam before I did. Fortunately, > licenses in those days did not have age information on them. Had a job with > a radio station when I was underage - the owner, also a Scot, knew not to > ask and I knew not to tell. . . . My mother had to drive me to my first day on the job as a broadcast engineer -- I wasn't old enough to get a driver's license or, in the state I was in, even a learner's permit. (I did know how to drive, though, having gotten a learner's permit in Alaska at 14. Drove quite a bit of the way down the Alaska highway, too, unpaved at the time.) I'd been turned down for a job as a golf caddie because I wasn't old enough. That was 1961. The owner of that first station I worked for became a fugitive from a felony conviction in about 1964. Don't think they ever caught him. Roy Lewallen, W7EL Article: 216337 of rec.radio.amateur.antenna From: "Ed Price" References: <3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com> <11ft4jm3hlk0b38@corp.supernews.com> <11ft8uft6mbg6c8@corp.supernews.com> <7KALe.1697$Us5.214@fed1read02> Subject: Re: You might be an old timer Message-ID: <9cVLe.1843$Us5.255@fed1read02> Date: Sun, 14 Aug 2005 21:52:18 -0700 "Ham op" wrote in message news:fbednXsE8sLxVWLfRVn-rQ@comcast.com... > Ed Price wrote: >> Wes, what's the preferred scorpion killing technique; you use a hammer or >> what? >> > > I know the design and operating principles of a hammer. Are you certain? Can you produce any documentation or certification regarding your competence? -- Ed WB6WSN El Cajon, CA USA Article: 216338 of rec.radio.amateur.antenna From: "Charlie" Subject: Re: Required radials on DX-88 Date: Mon, 15 Aug 2005 00:59:33 -0500 Message-ID: <11g0bqksbvgiu9a@news.supernews.com> References: <2PqdnWgfBfMoKWffRVn-rA@vnet-inc.com> The more radials the better. Many suggest that after 60 radials one hits the point of diminishing return. I have 72 on my Hustler 5-BTV and it really does make a huge difference. Mine add up to about 1300 ft of wire total. Photos of the entire installation at... 1. http://www.ad5th.com/5-BTV.html -- Charlie "Topaz305RK" wrote in message news:2PqdnWgfBfMoKWffRVn-rA@vnet-inc.com... > > Am in the process of installing a Hy-Gain DX-88 that I just picked up. It > has the 160 meter kit included. According to the manuals I should install > 16 radials at 14 feet each if just using up to 80 meters. If I plan to use > 160 meters than I should also install another 16 radials at 24 feet each. > > The question: Would I better off to install all 32 of these radials (as > per the manual) or put down 4 radials cut to 1/4 wave length for 10, 12, > 15, 17, 20, 30, 40, 80 and 160 meters? Putting down 1/4 wave radials on 80 > and could prove to be a problem real estate wise. I am out in the country > but even then I still have some limitations. > > Sam - K7SAM > > Article: 216339 of rec.radio.amateur.antenna From: "H. Adam Stevens, NQ5H" Subject: Re: You might be an old timer Date: Mon, 15 Aug 2005 04:30:15 -0500 Message-ID: <11g0o5ae7jbfiac@corp.supernews.com> References: <3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com> <11ft4jm3hlk0b38@corp.supernews.com> <68ff6$43000ef1$97d55c26$17640@ALLTEL.NET> I still can't believe anyone took this seriously. Steel wool must have slightly higher permeability than air, certainly no match for ferrites. 73 H. "Fred W4JLE" wrote in message news:68ff6$43000ef1$97d55c26$17640@ALLTEL.NET... > Walt I went back through some old note books, according to my records I > sent > the letter to the editor in 1977. I know Roy says 93, but I have e-mails > from that period and knew it had to be earlier. > > Does that match your recollection? > > "Walter Maxwell" wrote in message > news:cctuf1pkl29ic517rh25i3pio15i215t4g@4ax.com... >> Thanks, Roy, I had forgetten where the stuff was published. >> >> Walt >> >> On Sat, 13 Aug 2005 17:38:12 -0700, Roy Lewallen >> wrote: >> >> >Walter Maxwell wrote: >> >> . . . >> >> However, some moron claimed in QST that steel wool was just as good as >> >> ferrite for making choke baluns, but I've forgotten who the lunkhead >> >> at the League was who believed him, and allowed stupid idea to be >> >> published. >> >> >> >> I complained to the League editors, who unbelieveably said 'Prove It'. >> >> So I bought some steel wool and made two back to back baluns with it >> >> and made measurements of common mode currents. The measurements proved >> >> that the steel wool had absolutely no choking effect. >> >> >> >> I reported the results of the measurements to the editors at the >> >> League, but I can't remember whether they did anything about refuting >> >> the original incorrect material. Perhaps your memory is better than >> >> mine on this issue. >> >> >> >> Walt, W2DU >> > >> >The results of your measurements were published in "Hints & Kinks" in >> >September 1993 QST. According to the editorial comment accompanying it, >> >you were prompted to make the measurements by Tom Rauch, W8JI, who had >> >done some measurements which indicated that the steel wool balun was >> >ineffective. The Hints & Kinks editor at the time, who had accepted both >> >the original contribution by Curt Wilson, W0KKQ and yours, was Dave >> >Newkirk, WJ1Z. Anyone interested in learning more about it should read >> >the Hints & Kinks submissions and note Dave's added editiorial comments. >> > >> >Roy Lewallen, W7EL >> > > Article: 216340 of rec.radio.amateur.antenna Message-ID: <66lx8FJYPGADFwzI@ntlworld.com> From: Ian Wade Subject: Re: 4Mtrs References: <313030303837383542FB88F544@zetnet.co.uk> Date: Mon, 15 Aug 2005 09:51:49 GMT In message <313030303837383542FB88F544@zetnet.co.uk>, Dave Piggin writes >Hi All. Any good links for building 4Mtr beams for portable work or >permanent. TIA Dave. > Dave, take a look at this forum: http://www.70mhz.org/ -- 73 Ian, G3NRW g3nrw@yahoo.co.uk Article: 216341 of rec.radio.amateur.antenna From: "Travis Jordan" References: Subject: Re: Removal of Morse Code from Amateur License Requirements... Message-ID: Date: Mon, 15 Aug 2005 13:07:38 GMT Ken Taylor wrote: > Sending may be faster with the flags, but receiving is a bit of a > pain...... Smoke signals, anyone? Article: 216342 of rec.radio.amateur.antenna From: "J. Mc Laughlin" Subject: Re: You might be an old timer Date: Mon, 15 Aug 2005 09:22:51 -0400 Message-ID: <11g15nffcsa7t47@corp.supernews.com> References: <11ft3r2smgk0jb2@corp.supernews.com> <11ftca35810psc4@corp.supernews.com> <11fvt86mjg7nnab@corp.supernews.com> <11fvuai9035uo06@corp.supernews.com> <11g05otmhuualf3@corp.supernews.com> Dear Roy: Outstanding. What a shame that that route for young people is closed. I was able to ride a bicycle to the station. Would buy a quart of milk on my way to the station from a delivery van and have a simple breakfast while playing some sort of public service announcement to start the broadcast day. My Mother had to cash my checks for me because I was working when the bank was open. Very interesting people pass through broadcast stations. Another form of early education. Obviously, we both looked older than we were. Many years latter, I learned that I had been chosen over other (smarter?) candidates for some important opportunities because of the experience and initiative shown by working as a broadcast "engineer." How do young people today demonstrate such characteristics? 73, Mac N8TT -- J. Mc Laughlin; Michigan U.S.A. Home: JCM@Power-Net.Net "Roy Lewallen" wrote in message news:11g05otmhuualf3@corp.supernews.com... > J. Mc Laughlin wrote: > > . . . > > But then, you may have taken the exam before I did. Fortunately, > > licenses in those days did not have age information on them. Had a job with > > a radio station when I was underage - the owner, also a Scot, knew not to > > ask and I knew not to tell. . . . > > My mother had to drive me to my first day on the job as a broadcast > engineer -- I wasn't old enough to get a driver's license or, in the > state I was in, even a learner's permit. (I did know how to drive, > though, having gotten a learner's permit in Alaska at 14. Drove quite a > bit of the way down the Alaska highway, too, unpaved at the time.) I'd > been turned down for a job as a golf caddie because I wasn't old enough. > That was 1961. > > The owner of that first station I worked for became a fugitive from a > felony conviction in about 1964. Don't think they ever caught him. > > Roy Lewallen, W7EL Article: 216343 of rec.radio.amateur.antenna From: "Norm & Debbie" Subject: MFJ 1777 Antenna Install Message-ID: Date: Mon, 15 Aug 2005 13:24:53 GMT Group, anyone have experience with installing a MFJ 1777 Doublet Antenna? How was it installed? What issues did you encounter? Thanks! -- 73 Norm, KB9VVT Article: 216344 of rec.radio.amateur.antenna From: "Wayne P. Muckleroy" References: Subject: Re: Removal of Morse Code from Amateur License Requirements... Message-ID: Date: Mon, 15 Aug 2005 14:19:05 GMT LOL! "Travis Jordan" wrote in message news:us0Me.184985$%M5.150803@fe04.news.easynews.com... > Ken Taylor wrote: >> Sending may be faster with the flags, but receiving is a bit of a >> pain...... > > Smoke signals, anyone? > > Article: 216345 of rec.radio.amateur.antenna From: "Wayne P. Muckleroy" References: Subject: Re: Removal of Morse Code from Amateur License Requirements... Message-ID: Date: Mon, 15 Aug 2005 14:32:04 GMT Let's face it, Morse had an important need at one time in the history of radio. As a result, many amateur spent countless hours perfecting this craft. I'm glad they did. However, technology has advanced (thank God) to a point where Morse is all but obsolete. My hope is that when the FCC removes the Morse requirement, more amateurs will spend that time improving their technical abilities. The nice thing about amateur radio is that it flexible and offers many (very necessary) opportunities to its ranks. I believe the Morse requirement just distracts people from other more exciting (and more necessary) aspect of the hobby. Wayne P. Muckleroy (KC8UIO) "laborkei" wrote in message news:x_TJe.1297$Aq.917@bignews1.bellsouth.net... > Please visit this Link... > This is the future of our hobby... > > http://www.msu.edu/~volzmich/commenthelp.htm > > Step by Step instructions on how to leave comments with the FCC. > > -- > > > Article: 216346 of rec.radio.amateur.antenna From: "MD" Subject: Short 80m antenna, suggestions?? Message-ID: <%F4Me.6040$7R.244431@news20.bellglobal.com> Date: Mon, 15 Aug 2005 13:56:00 -0400 I haven't got the room for a good 80m antenna. My vertical covers 40 so no trouble there. I am looking for ideas on a short 80m that will give half decent results. I have about 66' available straight or can make some kind of inverted vee ??? Article: 216347 of rec.radio.amateur.antenna From: "David G. Nagel" Subject: Re: You might be an old timer Date: Mon, 15 Aug 2005 13:36:20 -0500 Message-ID: <11g1o5d9ee4586c@corp.supernews.com> References: <3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com> <11ft4jm3hlk0b38@corp.supernews.com> <11ft8uft6mbg6c8@corp.supernews.com> <7KALe.1697$Us5.214@fed1read02> <9cVLe.1843$Us5.255@fed1read02> Ed Price wrote: > "Ham op" wrote in message > news:fbednXsE8sLxVWLfRVn-rQ@comcast.com... > >>Ed Price wrote: > > >>>Wes, what's the preferred scorpion killing technique; you use a hammer or >>>what? >>> >> >>I know the design and operating principles of a hammer. > > > > Are you certain? Can you produce any documentation or certification > regarding your competence? > I'm not the person being questioned above but I took shop class in High School. Passed with flying colors. Does that count? Dave N Article: 216348 of rec.radio.amateur.antenna From: "David G. Nagel" Subject: Re: You might be an old timer Date: Mon, 15 Aug 2005 13:37:47 -0500 Message-ID: <11g1o83lef3bla6@corp.supernews.com> References: <3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com> <11ft4jm3hlk0b38@corp.supernews.com> <68ff6$43000ef1$97d55c26$17640@ALLTEL.NET> <11g0o5ae7jbfiac@corp.supernews.com> Adam; Do you remember "Contra Polar Energy"? A lot of people fell for that, including yours truly. Dave N H. Adam Stevens, NQ5H wrote: > I still can't believe anyone took this seriously. > Steel wool must have slightly higher permeability than air, certainly no > match for ferrites. > 73 > H. > > "Fred W4JLE" wrote in message > news:68ff6$43000ef1$97d55c26$17640@ALLTEL.NET... > >>Walt I went back through some old note books, according to my records I >>sent >>the letter to the editor in 1977. I know Roy says 93, but I have e-mails >>from that period and knew it had to be earlier. >> >>Does that match your recollection? >> >>"Walter Maxwell" wrote in message >>news:cctuf1pkl29ic517rh25i3pio15i215t4g@4ax.com... >> >>>Thanks, Roy, I had forgetten where the stuff was published. >>> >>>Walt >>> >>>On Sat, 13 Aug 2005 17:38:12 -0700, Roy Lewallen >>>wrote: >>> >>> >>>>Walter Maxwell wrote: >>>> >>>>>. . . >>>>>However, some moron claimed in QST that steel wool was just as good as >>>>>ferrite for making choke baluns, but I've forgotten who the lunkhead >>>>>at the League was who believed him, and allowed stupid idea to be >>>>>published. >>>>> >>>>>I complained to the League editors, who unbelieveably said 'Prove It'. >>>>>So I bought some steel wool and made two back to back baluns with it >>>>>and made measurements of common mode currents. The measurements proved >>>>>that the steel wool had absolutely no choking effect. >>>>> >>>>>I reported the results of the measurements to the editors at the >>>>>League, but I can't remember whether they did anything about refuting >>>>>the original incorrect material. Perhaps your memory is better than >>>>>mine on this issue. >>>>> >>>>>Walt, W2DU >>>> >>>>The results of your measurements were published in "Hints & Kinks" in >>>>September 1993 QST. According to the editorial comment accompanying it, >>>>you were prompted to make the measurements by Tom Rauch, W8JI, who had >>>>done some measurements which indicated that the steel wool balun was >>>>ineffective. The Hints & Kinks editor at the time, who had accepted both >>>>the original contribution by Curt Wilson, W0KKQ and yours, was Dave >>>>Newkirk, WJ1Z. Anyone interested in learning more about it should read >>>>the Hints & Kinks submissions and note Dave's added editiorial comments. >>>> >>>>Roy Lewallen, W7EL >>> >> > > Article: 216349 of rec.radio.amateur.antenna From: Thrasher Remailer Date: 15 Aug 2005 19:24:53 -0000 Message-ID: <4R63MUG738580.1422800926@reece.net.au> Subject: Re: You might be an old timer References: If you have done nothing interesting in the last day, week, month or year which is of any interest to most, you just might be an old timer. If your newest equipment is over a decade old, you just might be an old timer. If 40 and younger avoid you on the nets, you just might be an old timer. If you can't crawl the tower anymore, pullup the mast, you just might be an old timer. If your next stop is the resthome where your radio will be denied you, you just might be a old timer. If you live in the past and think the bands are over crowded, you just might be an old timer. If most of your exchanges and communications with others ends up into a sermon from you, a list of everything which is wrong, constant references to the past, and an attempt to stop progress, you might be an old timer. If you can't see how horrible the above is, you might be an old timer. Article: 216350 of rec.radio.amateur.antenna Subject: Re: Short 80m antenna, suggestions?? From: Cecil Moore Date: Mon, 15 Aug 2005 14:42:26 -0500 Message-ID: <1124135101_2681@spool6-east.superfeed.net> References: <%F4Me.6040$7R.244431@news20.bellglobal.com> MD wrote: > I haven't got the room for a good 80m antenna. My vertical covers 40 so no > trouble there. I am looking for ideas on a short 80m that will give half > decent results. I have about 66' available straight or can make some kind of > inverted vee ??? My suggestion: Use the 102 ft G5RV length and let 18 ft. hang down on each end. Feed it with ~23 ft of 450 ohm ladder-line. Put a parallel cap of ~1000 pf across the ladder-line at the ladder-line to coax junction on the antenna side of the choke. You probably won't even need a tuner for the resonant frequency. My second choice would be to go with the 66 ft. total length with high-Q loading coils in the center of each 33 ft. leg. -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- Article: 216351 of rec.radio.amateur.antenna From: "Fred W4JLE" References: <4R63MUG738580.1422800926@reece.net.au> Subject: Re: You might be an old timer Date: Mon, 15 Aug 2005 15:46:51 -0400 Message-ID: <8aead$4300f137$97d55c26$19168@ALLTEL.NET> And if you have nothing better to do than write inane lists, and posting them through anonymous remailers, you may be a loser regardless of age. "Thrasher Remailer" wrote in message news:4R63MUG738580.1422800926@reece.net.au... > If you have done nothing interesting in the last day, week, month or > year which is of any interest to most, you just might be an old timer. > > If your newest equipment is over a decade old, you just might be an old > timer. > > If 40 and younger avoid you on the nets, you just might be an old timer. > > If you can't crawl the tower anymore, pullup the mast, you just might be > an old timer. > > If your next stop is the resthome where your radio will be denied you, > you just might be a old timer. > > If you live in the past and think the bands are over crowded, you just > might be an old timer. > > If most of your exchanges and communications with others ends up into a > sermon from you, a list of everything which is wrong, constant > references to the past, and an attempt to stop progress, you might be an > old timer. > > If you can't see how horrible the above is, you might be an old timer. > > Article: 216352 of rec.radio.amateur.antenna From: chuck Subject: Re: Short 80m antenna, suggestions?? References: <%F4Me.6040$7R.244431@news20.bellglobal.com> Message-ID: Date: Mon, 15 Aug 2005 20:14:13 GMT Can you tell us what you want to do with it? MD wrote: > I haven't got the room for a good 80m antenna. My vertical covers 40 so no > trouble there. I am looking for ideas on a short 80m that will give half > decent results. I have about 66' available straight or can make some kind of > inverted vee ??? > > Article: 216353 of rec.radio.amateur.antenna Subject: Re: Short 80m antenna, suggestions?? From: Cecil Moore Date: Mon, 15 Aug 2005 16:02:23 -0500 Message-ID: <1124139899_2775@spool6-east.superfeed.net> References: <%F4Me.6040$7R.244431@news20.bellglobal.com> Frank wrote: > Put up 66 ft of wire, or any length that is convenient. Wire length is > unimportant. Inverted vee is ok. Feed it with open wire line (Or 450 ohm > ladder line) an any point you like. It will work just the same as a full > sized dipole. EZNEC says that a 66 ft dipole used on 3.8 MHz, fed with 450 ohm ladder-line, will have an SWR of greater than 100:1. This can lead to all sorts of undesirable effects including an almost impossible to match impedance at the tuner. A practical rule of thumb might be in order, e.g. mine = no more than 20:1 SWR on the ladder-line. -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- Article: 216354 of rec.radio.amateur.antenna From: "MD" References: <%F4Me.6040$7R.244431@news20.bellglobal.com> Subject: Re: Short 80m antenna, suggestions?? Message-ID: <5c7Me.6192$7R.273557@news20.bellglobal.com> Date: Mon, 15 Aug 2005 16:48:54 -0400 "chuck" wrote in message news:pI6Me.6908$Je.6507@newsread2.news.atl.earthlink.net... > Can you tell us what you want to do with it? I have an R7 up for 40-10. Two maple trees on the property, one in the front yard and one in the back but not far enough apart for an 80m dipole. The trees runs east west over the house. I would prefer to run the dipole north south, using the backyard maple for a support. The lot at this point is 66' wide. One other thing to mention I don't think I can run ladder line or open wire feeder into the house. I am pretty much limited to coax. Thanks for the help, Max Article: 216355 of rec.radio.amateur.antenna From: "Mr Fed UP" References: Subject: Re: You might be an old timer Message-ID: Date: Mon, 15 Aug 2005 16:24:00 -0500 Well shucks everyone ota have one for this thread HA HA How about being able to read 5-level baudot paper tape with out the teletype... Das is der kerbanginchunger http://www.kekatos.com/teletype/gil/M28.htm 73 K4TWO Gary This thread will prob' last about 9 months :-) ding ding ding "Fred W4JLE" wrote in message news:b2f40$42fe6d97$97d55c26$18541@ALLTEL.NET... sniippeddd > > Feel free to add your own favorite... > > Article: 216356 of rec.radio.amateur.antenna From: Thrasher Remailer Date: 15 Aug 2005 21:46:28 -0000 Message-ID: Subject: Re: Re: You might be an old timer References: <8aead$4300f137$97d55c26$19168@ALLTEL.NET> If you notice everyone standing around you is an old timer, you maybe an old timer. If you find it offensive that others even notice what an old timer is, you may be an old timer. Article: 216357 of rec.radio.amateur.antenna From: Thrasher Remailer Date: 15 Aug 2005 21:57:02 -0000 Message-ID: Subject: Re: A Sample Of The Supporters Pro-No-Code WT 05-235 References: More cops and robber, I am a secret agent, I spy, save the titanic. Grow up boys. Article: 216358 of rec.radio.amateur.antenna From: "Mr Fed UP" Subject: OT getting back in to raaaaaaaaadio housing covenent question Message-ID: Date: Mon, 15 Aug 2005 17:09:19 -0500 I am soon to inherit my mothers house If I can stay alive longer than she does with her cancer and me with my heart trubs' Anyhow, if anyone knows... there are currently no covenants about antennas for this neighborhood.. Wheew! I got a copy from the deeds place to be safe and the covenants expire in 5 more years. 35 yrs from dated land sub-division development. Question is what happens after the covenants expire? Can someone write and file new ones? Will they have to allow me time etc do file protests or what ever? If I get my antennas up first do they have to be "grandfathered" into any new covenants? I don't plan huge or "obscene" type antennas, just something to get on the air again with. Maybe a short stout tower to get over the top of the roof. Might be a vertical or two in the future 2m. 10m? But I am still stuck with these nagging questions in today's environment. Thanks anyone K4TWO Gary Article: 216359 of rec.radio.amateur.antenna From: chuck Subject: Re: Short 80m antenna, suggestions?? References: <%F4Me.6040$7R.244431@news20.bellglobal.com> <5c7Me.6192$7R.273557@news20.bellglobal.com> Message-ID: Date: Mon, 15 Aug 2005 22:13:57 GMT I guess my question wasn't clear, Max. Even though your space is limited, the type of antenna you install should be informed if possible by the type of operating you intend to do. If DX is very important to you (and here, DX could mean one or two thousand miles) you might want to work in some vertically polarized radiation, such as with an inverted L or a T (vertical with capacitive element on top) or a sloper. How tall are those maple trees? It may even be possible to load the R7 on 80 with a switched loading coil at the base. Wouldn't win any efficiency awards I'm sure. But thinking about it is pretty cheap and even fun. Chuck MD wrote: > "chuck" wrote in message > news:pI6Me.6908$Je.6507@newsread2.news.atl.earthlink.net... > >>Can you tell us what you want to do with it? > > > I have an R7 up for 40-10. Two maple trees on the property, one in the front > yard and one in the back but not far enough apart for an 80m dipole. The > trees runs east west over the house. I would prefer to run the dipole north > south, using the backyard maple for a support. The lot at this point is 66' > wide. One other thing to mention I don't think I can run ladder line or open > wire feeder into the house. I am pretty much limited to coax. > > Thanks for the help, > > Max > > Article: 216360 of rec.radio.amateur.antenna Subject: Re: Short 80m antenna, suggestions?? From: Ed References: <%F4Me.6040$7R.244431@news20.bellglobal.com> <5c7Me.6192$7R.273557@news20.bellglobal.com> Message-ID: Date: Mon, 15 Aug 2005 22:14:22 GMT > I have an R7 up for 40-10. Two maple trees on the property, one in the > front yard and one in the back but not far enough apart for an 80m > dipole. The trees runs east west over the house. I would prefer to run > the dipole north south, using the backyard maple for a support. The > lot at this point is 66' wide. One other thing to mention I don't > think I can run ladder line or open wire feeder into the house. I am > pretty much limited to coax. > > Thanks for the help, > I just got done building a "shortened" 75M dipole for traveling. It is 27' on each leg. Homemade coils are out from the apex 15'. Doing a little research in some old antenna books, and on web, I found good, easy, information on calculating the value of the coils, depending on how far out from the apex you want. In my case, I needed 50uH coils, which I wound on some 1.5 inch plastic pluming material with #22 close spaced telephone house wiring. For my little 5W FT-817 this works quite well, but if you are running more power, you'll need to build a bit more robust coil. Apex is held up with one of those 23' RV telescoping fibreglass flag masts. While open ladder line feed would give you a lot more flexibility, if you must use coax, then what I did sure would be an easy thing to do. If you need coil computation data and can't find it yourself, email me and I will try to get it to you. Ed K7AAT Email: Frog850 AT Bivalley.net Article: 216361 of rec.radio.amateur.antenna From: "H. Adam Stevens, NQ5H" Subject: Re: You might be an old timer Date: Mon, 15 Aug 2005 17:15:47 -0500 Message-ID: <11g250k4cvgr260@corp.supernews.com> References: <3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com> <11ft4jm3hlk0b38@corp.supernews.com> <68ff6$43000ef1$97d55c26$17640@ALLTEL.NET> <11g0o5ae7jbfiac@corp.supernews.com> <11g1o83lef3bla6@corp.supernews.com> Dave The first name is H. (No kidding) and no, but I recall an RF Turbine. 73 H. "David G. Nagel" wrote in message news:11g1o83lef3bla6@corp.supernews.com... > Adam; > > Do you remember "Contra Polar Energy"? > A lot of people fell for that, including yours truly. > > Dave N > > H. Adam Stevens, NQ5H wrote: > >> I still can't believe anyone took this seriously. >> Steel wool must have slightly higher permeability than air, certainly no >> match for ferrites. >> 73 >> H. >> >> "Fred W4JLE" wrote in message >> news:68ff6$43000ef1$97d55c26$17640@ALLTEL.NET... >> >>>Walt I went back through some old note books, according to my records I >>>sent >>>the letter to the editor in 1977. I know Roy says 93, but I have e-mails >>>from that period and knew it had to be earlier. >>> >>>Does that match your recollection? >>> >>>"Walter Maxwell" wrote in message >>>news:cctuf1pkl29ic517rh25i3pio15i215t4g@4ax.com... >>> >>>>Thanks, Roy, I had forgetten where the stuff was published. >>>> >>>>Walt >>>> >>>>On Sat, 13 Aug 2005 17:38:12 -0700, Roy Lewallen >>>>wrote: >>>> >>>> >>>>>Walter Maxwell wrote: >>>>> >>>>>>. . . >>>>>>However, some moron claimed in QST that steel wool was just as good as >>>>>>ferrite for making choke baluns, but I've forgotten who the lunkhead >>>>>>at the League was who believed him, and allowed stupid idea to be >>>>>>published. >>>>>> >>>>>>I complained to the League editors, who unbelieveably said 'Prove It'. >>>>>>So I bought some steel wool and made two back to back baluns with it >>>>>>and made measurements of common mode currents. The measurements proved >>>>>>that the steel wool had absolutely no choking effect. >>>>>> >>>>>>I reported the results of the measurements to the editors at the >>>>>>League, but I can't remember whether they did anything about refuting >>>>>>the original incorrect material. Perhaps your memory is better than >>>>>>mine on this issue. >>>>>> >>>>>>Walt, W2DU >>>>> >>>>>The results of your measurements were published in "Hints & Kinks" in >>>>>September 1993 QST. According to the editorial comment accompanying it, >>>>>you were prompted to make the measurements by Tom Rauch, W8JI, who had >>>>>done some measurements which indicated that the steel wool balun was >>>>>ineffective. The Hints & Kinks editor at the time, who had accepted >>>>>both >>>>>the original contribution by Curt Wilson, W0KKQ and yours, was Dave >>>>>Newkirk, WJ1Z. Anyone interested in learning more about it should read >>>>>the Hints & Kinks submissions and note Dave's added editiorial >>>>>comments. >>>>> >>>>>Roy Lewallen, W7EL >>>> >>> >> Article: 216362 of rec.radio.amateur.antenna From: "H. Adam Stevens, NQ5H" Subject: Re: You might be an old timer Date: Mon, 15 Aug 2005 17:17:08 -0500 Message-ID: <11g2536toptjd9b@corp.supernews.com> References: You can see my Model 19 by going to www.spiderwebnet.net and clicking on my call. H. NQ5H "Mr Fed UP" wrote in message news:rI7Me.18979$rp.7185@bignews1.bellsouth.net... > Well shucks everyone ota have one for this thread HA HA > > How about being able to read 5-level baudot paper tape with out the > teletype... > Das is der kerbanginchunger > http://www.kekatos.com/teletype/gil/M28.htm > > 73 K4TWO Gary > > This thread will prob' last about 9 months :-) ding ding ding > > > "Fred W4JLE" wrote in message > news:b2f40$42fe6d97$97d55c26$18541@ALLTEL.NET... > sniippeddd >> >> Feel free to add your own favorite... >> >> > > Article: 216363 of rec.radio.amateur.antenna From: "wb5cys" References: <42FC018E.E4C00667@earthlink.net> <1123817805_9029@spool6-east.superfeed.net> Subject: Re: Removal of Morse Code from Amateur License Requirements... Message-ID: Date: Mon, 15 Aug 2005 22:23:51 GMT "Reg Edwards" wrote in message news:ddhag7$kdf$1@nwrdmz01.dmz.ncs.ea.ibs-infra.bt.com... > > I do wish people would not refer to me as a 'ham'. > > Amongst the very few things I am proud of is that I am a true Class-A > Radio Amateur. > > Incidentally, as a British pensioner, my annual licence is free. When > requested I just have to confirm I am still in circulation. Same > applies to riding on buses when mobile or not mobile, sober or not > sober. > > Arn't you American Amateurs envious? > ---- > Reg, G4FGQ. > > =================================== > > "Cecil Moore" wrote - >> >> Real hams do DSP filtering at IF. > Most things in a socialist country are "free" - except for the people - excuse me - subjects. Cal, WB5CYS Article: 216364 of rec.radio.amateur.antenna From: dplatt@radagast.org (Dave Platt) Subject: Re: OT getting back in to raaaaaaaaadio housing covenent question Date: Mon, 15 Aug 2005 22:36:25 -0000 Message-ID: <11g26794n2gr910@corp.supernews.com> References: In article , Mr Fed UP wrote: >I am soon to inherit my mothers house If I can stay alive longer >than she does with her cancer and me with my heart trubs' >Anyhow, if anyone knows... there are currently no >covenants about antennas for this neighborhood.. Wheew! >I got a copy from the deeds place to be safe and >the covenants expire in 5 more years. 35 yrs from dated >land sub-division development. > >Question is what happens after the covenants expire? > >Can someone write and file new ones? >Will they have to allow me time etc do file protests or what ever? >If I get my antennas up first do they have to be "grandfathered" >into any new covenants? I would strongly encourage you to get advice from a local lawyer who understands your state and local housing laws. There seems to be quite a bit of variation from one area of the country to another, and it's likely that advice you might be given might not apply in your area. In some areas, the local homeowner's association is granted quite a bit of power to create new covenants. This can be done by the HO's board, which may or may not have been elected by a majority of the homeowners, and their actions may or may not be subject to review by the homeowners. >But I am still stuck with these nagging questions in >today's environment. If you want answers that you can depend upon, I think you ought to plan to speak with a lawyer who practices property law in the county in which the home exists. -- Dave Platt AE6EO Hosting the Jade Warrior home page: http://www.radagast.org/jade-warrior I do _not_ wish to receive unsolicited commercial email, and I will boycott any company which has the gall to send me such ads! Article: 216365 of rec.radio.amateur.antenna From: "Mr Fed UP" References: <11g26794n2gr910@corp.supernews.com> Subject: Re: OT getting back in to raaaaaaaaadio housing covenent question Message-ID: Date: Mon, 15 Aug 2005 17:47:28 -0500 Ok. I didn't know some legal folks had specialties in this field. But after reading the reply I guess maybe no different than other things. Thanks. I'll look as far as my wallet will take me comfortably. hi hi. >From Clarksville TN... maybe win the lotto and put up a 400 ft tower. lol Thanks Gary "Dave Platt" wrote in message news:11g26794n2gr910@corp.supernews.com... > In article , > Mr Fed UP wrote: > >>I am soon to inherit my mothers house If I can stay alive longer >>than she does with her cancer and me with my heart trubs' >>Anyhow, if anyone knows... there are currently no >>covenants about antennas for this neighborhood.. Wheew! >>I got a copy from the deeds place to be safe and >>the covenants expire in 5 more years. 35 yrs from dated >>land sub-division development. >> >>Question is what happens after the covenants expire? >> >>Can someone write and file new ones? >>Will they have to allow me time etc do file protests or what ever? >>If I get my antennas up first do they have to be "grandfathered" >>into any new covenants? > > I would strongly encourage you to get advice from a local lawyer who > understands your state and local housing laws. There seems to be > quite a bit of variation from one area of the country to another, and > it's likely that advice you might be given might not apply in your area. > > In some areas, the local homeowner's association is granted quite a > bit of power to create new covenants. This can be done by the HO's > board, which may or may not have been elected by a majority of the > homeowners, and their actions may or may not be subject to review by > the homeowners. > >>But I am still stuck with these nagging questions in >>today's environment. > > If you want answers that you can depend upon, I think you ought to > plan to speak with a lawyer who practices property law in the county > in which the home exists. > > -- > Dave Platt AE6EO > Hosting the Jade Warrior home page: http://www.radagast.org/jade-warrior > I do _not_ wish to receive unsolicited commercial email, and I will > boycott any company which has the gall to send me such ads! Article: 216366 of rec.radio.amateur.antenna From: Thrasher Remailer Date: 15 Aug 2005 22:54:43 -0000 Message-ID: Subject: Re: Short 80m antenna, suggestions?? References: <%F4Me.6040$7R.244431@news20.bellglobal.com> dipole with the two legs helical wound and evenly spaced over the total area length you have available. Article: 216367 of rec.radio.amateur.antenna From: Thrasher Remailer Date: 15 Aug 2005 23:13:21 -0000 Message-ID: Subject: Re: Removal of Morse Code from Amateur License Requirements... References: Don't look to hard, or get too confident right at this time, appears as if a "few" of our rights are slipping down the john and someone is just about to pull the flapper... we may need to clean our own house before looking for the dust in others. Article: 216368 of rec.radio.amateur.antenna Subject: Re: A Sample Of The Supporters Pro-No-Code WT 05-235 From: Cecil Moore Date: Mon, 15 Aug 2005 18:27:13 -0500 Message-ID: <1124148589_2911@spool6-east.superfeed.net> References: Thrasher Remailer wrote: > ... save the titanic. Was it the California's CW operator who got pi$$ed at the arrogance of the Titantic's CW operator, shut his rig down, and went to sleep? -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- Article: 216369 of rec.radio.amateur.antenna From: Thrasher Remailer Date: 16 Aug 2005 00:15:52 -0000 Message-ID: <2KPB3O6J38580.3443518519@reece.net.au> Subject: Re: Short 80m antenna, suggestions?? References: <%F4Me.6040$7R.244431@news20.bellglobal.com> begin 777 hh.jpg M_]C_X``02D9)1@`!`0$`8`!@``#_VP!#``@&!@<&!0@'!P<)"0@*#!0-#`L+ M#!D2$P\4'1H?'AT:'!P@)"XG("(L(QP<*#7J#A(6&AXB)BI*3E)66EYB9FJ*CI*6FIZBIJK*SM+6VM[BYNL+#Q,7& MQ\C)RM+3U-76U]C9VN'BX^3EYN?HZ>KQ\O/T]?;W^/GZ_\0`'P$``P$!`0$! M`0$!`0````````$"`P0%!@<("0H+_\0`M1$``@$"!`0#!`<%!`0``0)W``$" M`Q$$!2$Q!A)!40=A<1,B,H$(%$*1H;'!"2,S4O`58G+1"A8D-.$E\1<8&1HF M)R@I*C4V-S@Y.D-$149'2$E*4U155E=865IC9&5F9VAI:G-T=79W>'EZ@H.$ MA8:'B(F*DI.4E9:7F)F:HJ.DI::GJ*FJLK.TM;:WN+FZPL/$Q<;'R,G*TM/4 MU=;7V-G:XN/DY>;GZ.GJ\O/T]?;W^/GZ_]H`#`,!``(1`Q$`/P#W)K^)7N0S M,HME#R$CC:02"/4=1]14\;[XU?#`$`X(/<5Q/BMFO?$^GZ1;30R'4`T-TA?Y MHA&I=5>0C/?:1@@58AO/$,CI"-4T\,V-LAL3DJS.`Q_>=<1,WONQ@8S M0!V.:,UQ?]J^(?LGVG[?8`;=YC-BWR_NC,1GS.>-J_CG@\4XW/B6*X*-JEE( M!E`398!8%%[2<'=)S_N#'4T`=EDTFZN/%QXCD:`.FO+]+/RU=@T\A M*Q0AL-(W4A0>N!R3V')KG],SZH]O(@25X8+?S%*[F!7DYY]>!E1G& M<'3?3+Q]1BOGNK1YH8RD1:T<[`QY(_>=3@#/I]:S+R\UV*[N%AN]._=9"*UD MY+853U\T=6=5]L4`.6ZU#3VLA=:EOB\D2,SQ_*PW*IW,2&!&]><=22<=J,?B M*%;&>]FUR?$3NID%LP4#>C9V\Y`#%<^G/\)J>2?Q%*#"FJ6(4.8F(T\G@R"$ M'!DQU#L1[`=*([K7VD*)J.FAI&4HWV!OF#LPR?WN,A8BWX^PR`7=`DN[B*=<^9Q\TI/']P>IH`Z1[I&,*@ES,"01C@``Y//NO_?0K3KS_`,)D MP:EJ6F2O!'_9\AMK>*-P"4*J20I).,*AZ_>9J]`H`\^U*PNX?'XU2`QS"U:W MD^SRG:J+.LD&5(!.=RJ22!P.IP`$$?B06\*CP\_FI"L>[[4GRD1R)D\X^\[- MU/!!ZUT.I:3*\-[<0,7N)=V%QR5V*H`]P5##WR.,DU<&KV.P2^?\@*#?M.`S MD*H)QP!,7#+>1D%?M"R<9Z@@*!G!^4\=,[T/B+2+D8@O5D(!&Q%8MPVS@8R M?F8"GOKVFQR,CW05UZ_(VTX5B<'!!("MT/&/?D`YV-O$*R0L/#[[E5`Q-W'@ MD>;S]-T@/T!IUFVMV5&5<%KM.`(?+YP.V&)_WA[UOQZ]IDL<#Q72R M)-(L,4D:,RNS9(4$#'12<=AR2,U;U&2*#3;AWD6-%B;YF/3C']:`((KK4Y;= M9!96@#J'Q]K;.",_\\ZY^5=9=_/ATJ.8&XFW^7=#C$Z9!RHZB/`_7'2NGL&1 M].MW1QY?E+ANQX_+C^E5=$F@N;1W@F2514D],XW2`_0$]>*KBW\1?9%A&A?O$14#&\3@"!HQ^K$G MV(XS723^(-*MXO-GN]J,AD!,;99`RKN''(RPY`YSD<9-2#6]-8.1<`A-X;"M M@;%#-DXX`!7)Z9('7B@#FKA-?E-QLT%D65'4XNT)PRQCTQD+'M^I].:2"W\1 M1S-)+H[R@RAQNO8^/WS/P`,#.Y3G_8/3@5T,VOZ9"':6[\H*7SO1U.$8*W!7 M)`)ZCWQT)#)M:LY8REI-ON)8Y'@/DN0^T`D@A?F`+*#[\=3$0RDNP0-D@"QTBX1E10;I,LP!4G)P>/O@#L2 M#TKHP/:@B@#*M]&MY8L:A:6=Q*NZ-2T"'$(<[$^[T`VG'K5R33K"4J9;*V?3 M)XX8DDFP#&KR%`&!!!)!!&#SQSQ5T$^]9VM1)<::]O):O<12,JO&A()&<]@3 MCCVZ]:`,Y7U6W)LHM.22U$[1DG)WQE,EB=W5G)Z].^2:OZ)"\.GJ986AG=B7 M5G+GCA<\G'RA>,\>I/)Y]='L[R2YMQI%\+:=%DRO[H@EEX&X*!@@D<[AMZ`; M!6KH`"><$T]K5)#YC,58%VR4YW(ISM16Z?Q?F`0#3M4\Y6%AI"-ND;S(XOF5 MM@*,,CKOW$^Q%;<>FV@16FM;9IN2[^2H)8CYCT[U9!'84Z@"!K&S>59&MK=G M7.UC$"1DDG!Q[G\S3$TRP@F2:*RMHY4^ZZ1*".`O!`]`!]`*L$TC'B@"&7!' M!(Q5VL]\D'K6A0`E)QGW]*8&+#I^=)\N[=@9`QF@"4\"D'-8\_B;1H))(IM4 MMHY$8HP:0<$=1]>?YCJ#BK=>*M-:`"SU6Q,Y9-HDEVH1O`.6`.,KG!].>G-` M'1CI32./H*YZU\5:2EO_`*3KMG([R.5=)!@*78H#QQA0`2>F.>N3,E[+>Q>> M^HI8P=51#&9`.V\OD#CG&./4T`,:77#>1*+=/(RVXG;G/F'!'(XV#'K\WJ*W M=OMS@5QTMWI=W=V-R/%FH0^2S,45A&C#&/WHV``=QNX.>.U78=7M6EC2T\0& M:9@0L=W&,9&_MZ@@CK2_\)5H:D@ZQ8Y!(/[Y>.UF2:)QN5T.0>/T[4`$V`.`*NU1F.1VJ]0`S%5 M=39DTB\>,#S%@)ZA2+.K:5`NF3/YMY\H5_FO9L8!! M/\>.@H`CO;*T;^TE%O#@K!9@",<9/_VRKMG9VSWNH/\`9X2/.5%_=CH$7^I- M8NL:/#9M-,+O4=K`SJ@FGD`E0*1G#Y;(3@=?O<_=`6WTC#6BI?:@#=*LS*;R M3I)Y!()Z]<=3F$^# M+,EB=0U]E?:.=NT^6.?7Y,^V[`X%4G\&V;!O\`B8:MSO&?M[G&X`GK MQ]X;_P#>_P!G@;5M:I96R00EMJY.7=F9B3RQ+DP?2G<4OXT`,(XI`O3J2.]2<4TX!YH`,'''Z5!>6WVNTG@.0)8V M0GZC%3`Y/_U_SIV!B@"G8S_:K&WG((>2,%@/X6QR/P(Q6=+J$%IKODS;VGNW MC@A11DD!6IS6A'[J?=/!['(WK_P!]'=_P(^E8FA07USK, MVHS3%HRJK'NGS^[*\-C8/O$`XXXQGD8H`ZH9SSC`I??%5-/AO803=W8FR@7: M%``8%LMGWRO'08XJZ1GN*`(R#NR>N*:RMC'3G.:D/+8]*:R\9S0!1E+G=\W3 MM6K6=*AQG=SFM&@!A%&*=Q0>E`#<'UK'UC2+C4N(+U[;*%<@9P?4>G?KSTQ6 MUP!S2``=!0!4L[9K2(QES(3([[L8^\2<=?>K.#3CC.>]&1B@#.O?^/\`TP^L MS+^<3G^E3FC)IVWDGUHQ[4`-S[_K1NIV`.U(0/0_E0`G;-!.2,"E.*BG: M2."1XXS*ZJ2L8.-QQP/QH`K:P?\`B1W^>GV:7_T$UQK(L?@_P8I93_IUFPP? M?M^=;LNI7]POV:7197MYRL4C"3&$=#N;!&>...N#SC%5[;2PUGI!N(]05$F0 MBT:7S1!LR4R=F2`0HW9^IZY`.JSS1DX-85GJ>L2W<45UHQMXF?:9?-\S`P2. M`.,GO_B*W<'T/YT`)NQVICM\OI3S]2*C8$+P,CW-`%69R2>F*TZSI`V3_C6C @0`4444`%%%%`!1110`4444`%%%%`!1110`4444`?_]D` ` end Article: 216370 of rec.radio.amateur.antenna From: "Frank" References: <%F4Me.6040$7R.244431@news20.bellglobal.com> <1124139899_2775@spool6-east.superfeed.net> Subject: Re: Short 80m antenna, suggestions?? Message-ID: Date: Tue, 16 Aug 2005 01:31:15 GMT > EZNEC says that a 66 ft dipole used on 3.8 MHz, fed with 450 ohm > ladder-line, will have an SWR of greater than 100:1. This can > lead to all sorts of undesirable effects including an almost > impossible to match impedance at the tuner. A practical rule of > thumb might be in order, e.g. mine = no more than 20:1 SWR on the > ladder-line. Fact is Cecil I never pay any attention to VSWR, just complex numbers. Anyway your comments made me re-analyze the problem, and I realize I made an error in the transmission line and antenna tuner analysis. I thought the transmission line loss I came up with was a bit low. The final numbers are shown below. See if you agree with me; then explain where I went wrong, and why the match will not work. 66 ft dipole, 30 ft high, #14 AWG: Input Z = 11.3 - j961 ohms. 50 ft of 600 ohm line: Input Z = 5.48 + j189.85 ohms, loss = 1.95 dB Matching network: Shunt C = 296 pF, Series L = 22.8 uH. (Obviously half the L for each side of a balanced.line.) Max line voltage: 1.5 kW in = 3 kV. Tuner loss: 0.44 dB. Incidentally have you ever looked at a typical airport NDB site? For example a 45 ft monopole on 350 kHz has an input impedance of 0.2 - j7054, which is a VSWR of 4.9 million : 1 -- whatever that means -- virtually touching the edge of the Smith Chart. I have even seen 5 mile approach NDBs with 30 ft monopoles. Marine installations for 400 to 500 kHz operation frequently had electrically very small inverted "L" antennas. Of course 5 S/m sure helped, but the losses in the tuners must have been significant. 73, Frank Article: 216371 of rec.radio.amateur.antenna From: "MD" References: <%F4Me.6040$7R.244431@news20.bellglobal.com> <5c7Me.6192$7R.273557@news20.bellglobal.com> Subject: Re: Short 80m antenna, suggestions?? Message-ID: <57cMe.1085$1Y4.979@read1.cgocable.net> Date: Mon, 15 Aug 2005 22:24:07 -0400 "chuck" wrote in message news:Fs8Me.6021$RZ2.5694@newsread3.news.atl.earthlink.net... > I guess my question wasn't clear, Max. > > Even though your space is limited, the type of antenna you install > should be informed if possible by the type of operating you intend to > do. If DX is very important to you (and here, DX could mean one or two > thousand miles) you might want to work in some vertically polarized > radiation, such as with an inverted L or a T (vertical with capacitive > element on top) or a sloper. How tall are those maple trees? > > It may even be possible to load the R7 on 80 with a switched loading > coil at the base. Wouldn't win any efficiency awards I'm sure. But > thinking about it is pretty cheap and even fun. > > Chuck The maple trees are pretty tall, getting up in there high enough would be a challenge. I may try 66' per side and see how high in the tree I have to go to get the angle out to the corners of the lot. Would a direct feed with 50 ohm coax be suitable with a choke balun? Mainly interested in local comms out to 3 or 400 miles. Max Article: 216372 of rec.radio.amateur.antenna From: Owen Duffy Subject: Re: Short 80m antenna, suggestions?? Message-ID: References: <%F4Me.6040$7R.244431@news20.bellglobal.com> <5c7Me.6192$7R.273557@news20.bellglobal.com> Date: Tue, 16 Aug 2005 02:40:26 GMT On Mon, 15 Aug 2005 16:48:54 -0400, "MD" wrote: > >"chuck" wrote in message >news:pI6Me.6908$Je.6507@newsread2.news.atl.earthlink.net... >> Can you tell us what you want to do with it? > >I have an R7 up for 40-10. Two maple trees on the property, one in the front >yard and one in the back but not far enough apart for an 80m dipole. The >trees runs east west over the house. I would prefer to run the dipole north >south, using the backyard maple for a support. The lot at this point is 66' >wide. One other thing to mention I don't think I can run ladder line or open >wire feeder into the house. I am pretty much limited to coax. Max, is that to mean you want to feed the 66' dipole with 50 ohm coax (all the way from the rig to the centre of the dipole)? Assuming the feedpoint impedance that others have modelled is about right, and that was 11-j961 at 3.8MHz... the losses in 20m (60') of RG213 would be around 18dB. That is, less than 2% of the power into the cable reaches the feedpoint. That isn't the end of the story, there will be tuner losses... but the good news is that partly as a result of the very high coax losses, the impedance presented to the tuner will be well within the range of loads that can be transformed at fairly low loss. So... less than 2% of the transmitter power reaching the feedpoint... is that acceptable? BTW, if you considered a shorter line, say half the length at 10m (or 30'), the losses would be around 13dB (note considerably more than half of the losses for 20m of line - the loss/unit-length is not constant along the line). It turns out that in practice, it is very hard to get most of the transmitter power to the feedpoint of a dipole when the dipole length gets much below 35% of the wavelength. Using lossy feedline (like coax) exacerbates the problem. Owen -- Article: 216373 of rec.radio.amateur.antenna From: "Norm & Debbie" References: <1124144271.340519.296530@g47g2000cwa.googlegroups.com> Subject: Re: MFJ 1777 Antenna Install Message-ID: Date: Tue, 16 Aug 2005 03:31:50 GMT Thank you Gary. If you think of anything else, let me know. Norm wrote in message news:1124144271.340519.296530@g47g2000cwa.googlegroups.com... Norm & Debbie wrote: > Group, anyone have experience with installing a MFJ 1777 Doublet Antenna? > How was it installed? What issues did you encounter? Thanks! > > > -- > 73 > Norm, KB9VVT Hi Norm, I have never installed an MFJ 1777, but have installed dozens of antennas just like it. The antenna is a 102' doublet fed with 450 ohm ladder line. The MFJ manual says it has to be used with a balanced antenna tuner. A new or used balanced antenna tuner will cost 3-4 times the $50 price tag for the antenna. The antenna will have to be used with some type of tuner, a "T" type will work, or a simple "L" network, with a suitable balun. As far as installing, hang it high enough so the transmission line just gets to the tuner, that would be optimum. If you want to use it on 160M that will require reconfiguring the antenna, not that difficult, but still a pain. Gary N4AST Article: 216374 of rec.radio.amateur.antenna From: Bob Nielsen Subject: Re: You might be an old timer Date: Mon, 15 Aug 2005 20:39:36 -0700 Message-ID: References: <3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com> <1a44a$43000d96$97d55c26$17394@ALLTEL.NET> Back around 1962, I was working on the Syncom satellite program at Hughes Aircraft. NASA wanted us to make some satellite transponder simulators so they could check out the ground stations. The plan was to take some of the 'less than perfect' hardware and package it up in a metal box. Unfortunately a lot of that stuff wasn't very stable, particularly the varactor multipliers. To make things worse, they used TWT amplifiers (in a separate box) followed by a 10 watt attenuator which brought the output back down to about the same level as the drive to the TWT. We ended up lining the boxes with steel wool along with a lot of metal tape to seal the seams, etc., and it did seem to help (a bit). I remember the steel-wool balun story and wondered at the time if perhaps it was merely absorbing some of the current on the outside of the coax. 73, Bob N7XY On Sun, 14 Aug 2005 23:34:48 -0400, Fred W4JLE wrote: > Walt, I just went back and checked some old notes. I show I wrote a letter > to the editor on the steel wool balun in 1977. I know Roy said 1993, but I > "Walter Maxwell" wrote in message > news:3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com... >> On Sat, 13 Aug 2005 18:00:21 -0400, "Fred W4JLE" >> wrote: >> >> >You might be an old time if you can answer the following, with out diving >> >into your library. >> > >> >Which of the following is NOT a rectifier? >> >a. 3B24 >> >b. 80 >> >c. 3C24 >> >d. 6H6 >> > >> >Steel wool was once touted as a good material to make which of the >> >following? >> > >> >a. Choke Balun >> >b. AF shielding >> >c. Linear capacitors >> >d. Radials for short virticals >> > >> >Feel free to add your own favorite... >> > >> >> Good ones, Fred, 3B24 and 3C24 are not rectifiers. >> >> However, some moron claimed in QST that steel wool was just as good as >> ferrite for making choke baluns, but I've forgotten who the lunkhead >> at the League was who believed him, and allowed stupid idea to be >> published. >> >> I complained to the League editors, who unbelieveably said 'Prove It'. >> So I bought some steel wool and made two back to back baluns with it >> and made measurements of common mode currents. The measurements proved >> that the steel wool had absolutely no choking effect. >> >> I reported the results of the measurements to the editors at the >> League, but I can't remember whether they did anything about refuting >> the original incorrect material. Perhaps your memory is better than >> mine on this issue. >> >> Walt, W2DU Article: 216375 of rec.radio.amateur.antenna From: Steve Silverwood Subject: Re: small shortwave antenna Message-ID: References: <4lkod157rpimgd23vspi0jp0sradpce3rs@4ax.com> Date: Tue, 16 Aug 2005 12:09:59 GMT In article <4lkod157rpimgd23vspi0jp0sradpce3rs@4ax.com>, none@personainternet.com says... > I am livign in an apartment, so I cant transmit (no towers and what > not) so I am looking for what would suit my needs best for HF and > shortwave recption in general > > I have googled a bit and havent found much in the way of easy to build > or easy to obtain parts to build antennas > > any help would be really appreciated > cheers > I'm in a condo, which is also somewhat restrictive in terms of radio antennas and transmitters. Don't get discouraged, there are ways around it. Best thing to do is to look into QRP operation (power levels 5w and lower). I'm using an FT-817 which won't do any more than that, and a somewhat stealthily-arranged shorty G5RV antenna for 40m thru 10m, and a 2m vertical up where an old busted-up TV antenna used to be when we moved in. With that arrangement, I can work all the 2m repeaters in the area, and on HF I've worked all over the country plus several countries around the Pacific and into South America. Never had a TVI complaint at all. One thing I =did= do was put the antenna up first, and leave it up for a couple of months before I did any transmitting. I read about one guy who had a neighbor start complaining immediately after he saw the antenna the guy put up. Since the antenna wasn't even connected to anything, the neighbor was caught without an explanation or complaint about the ham. Fortunately, nobody came by and started complaining so I proceeded with getting on the air, still no interference complaints and I've been operating for something like seven years now. Another good story was a ham who was sitting in his living room watching the tube -- no radios on in the shack at all -- when a neighbor came by, furious because he was getting TV interference, and was POSITIVE it was the fault of this ham. The ham said, let's go see, so they went to the neighbor's house to look. Sure enough, there was a lot of TVI. The neighbor said, see, you're screwing up my TV! The ham said, how can that be? I'm standing right here, no radio in sight, so how can I be messing up your TV...? Anyway, consider QRP -- you will be surprised at how much you can accomplish on only five watts! -- -- //Steve// Steve Silverwood, KB6OJS Fountain Valley, CA Email: kb6ojs@arrl.net Article: 216376 of rec.radio.amateur.antenna From: "MD" References: <%F4Me.6040$7R.244431@news20.bellglobal.com> Subject: Re: Short 80m antenna, suggestions?? Message-ID: Date: Tue, 16 Aug 2005 08:07:36 -0400 Lots of good information here guys, I appreciate all the help. Currently I am using a long wire elevated at the ghastly height of 15' using the eaves of the house as a counterpoise. I can work stations out to ~ 400-500 kms, maybe that is the best I can manage. Once again, thanks for all the help. de VE3TMT Article: 216377 of rec.radio.amateur.antenna From: "Frank" References: <%F4Me.6040$7R.244431@news20.bellglobal.com> Subject: Re: Short 80m antenna, suggestions?? Message-ID: Date: Tue, 16 Aug 2005 12:33:59 GMT "MD" wrote in message news:mFkMe.6867$7R.399542@news20.bellglobal.com... > Lots of good information here guys, I appreciate all the help. Currently I > am using a long wire elevated at the ghastly height of 15' using the eaves > of the house as a counterpoise. I can work stations out to ~ 400-500 kms, > maybe that is the best I can manage. > > Once again, thanks for all the help. > > de VE3TMT I failed to notice you did not want to use open wire line. If you use inductive loading, for example: nominal 46 uH, Q = 200, at 15 ft from each end of a 66 ft dipole. The radiation efficiency is 71%, i.e you loose 1.5 dB in the loading coils. The input impedance is 28 ohms, and the losses on 60 ft of RG213 will only be 0.24 dB. Orientation of the dipole is unimportant since at 30 ft high the radiation is essentially omni-directional. 73, Frank Article: 216378 of rec.radio.amateur.antenna From: "MD" References: <%F4Me.6040$7R.244431@news20.bellglobal.com> Subject: Re: Short 80m antenna, suggestions?? Message-ID: Date: Tue, 16 Aug 2005 09:35:15 -0400 "Frank" wrote in message news:X2lMe.197169$tt5.130324@edtnps90... > I failed to notice you did not want to use open wire line. If you use > inductive loading, for example: nominal 46 uH, Q = 200, at 15 ft from each > end of a 66 ft dipole. The radiation efficiency is 71%, i.e you loose 1.5 > dB in the loading coils. The input impedance is 28 ohms, and the losses on > 60 ft of RG213 will only be 0.24 dB. Orientation of the dipole is > unimportant since at 30 ft high the radiation is essentially > omni-directional. > > 73, > > Frank Hi Frank, Unfortunately using open-wire is not an option, as I have to feed the feedline in through the exterior brick wall of the house. I have 2 feedlines running out now. One to the R7 and the other for experimenting. I am going to try your suggestions with the loading coils, as soon as I get back from vacation!! Article: 216379 of rec.radio.amateur.antenna Message-ID: <4301F707.131FA0C@antennaman.com> From: joey Subject: Re: OT getting back in to radio housing covenent question References: Date: Tue, 16 Aug 2005 14:24:10 GMT hi, There is a topic on www.eham.net for antenna restrictions in the forums section. Lots of good ideas there but best to check with the local lawyers. Good thing is perhaps everyone has forgotten about these restrictions if any. Good luck with your health issues. 73 joey Article: 216380 of rec.radio.amateur.antenna From: "Reg Edwards" Subject: Popular Misconceptions. Date: Tue, 16 Aug 2005 16:15:10 +0000 (UTC) Message-ID: Everything appears quiet on the Western Front. So let's waken things up. Is there anybody about who still imagines that an SWR meter, located in the transmitter, or even on the other side of the tuner, indicates SWR on the transmission line between transmitter and the antenna? ---- Reg, G4FGQ Article: 216381 of rec.radio.amateur.antenna From: "Ken Bessler" Subject: Homebrew HT antenna Message-ID: Date: Tue, 16 Aug 2005 11:19:27 -0500 I just built a 1/4 wave (146mhz) antenna for my dual band HT (Yaesu FT-51r). It's simply 19.25" of .025" piano wire soldered into the core of a broken SO-239/BNC adapter. The BNC center pin just sits in the socket in the radio with a rubber bnc cap keeping the antenna load off the pin and keeping dirt out. It's all a press fit and it seems to work great. Comparing it to my OEM rubber duck, it's about 2-4 S units better on 2m & 440. As I understand it, it works as a 3/4 wave antenna on UHF and should be a good match but the radiation angle won't be perfect. My question is this: What would be the radiation angle on 440? I know I'm picking nits here but I'm interested in the theroy. P.S. The FT-51R is an all metal case HT which should provide a good capacitive couple to my hand but what about when the HT is on the back of my backpack? What counterpoise do I get then? Maybe from the mic cable? -- 73 de Ken KGØWX - Flying Pigs #-1055 Elecraft K2 #4913 Article: 216382 of rec.radio.amateur.antenna From: Walter Maxwell Subject: Re: Popular Misconceptions. Message-ID: <9t44g19j8s8ojopba45di4l7b54j7cmjbc@4ax.com> References: Date: Tue, 16 Aug 2005 12:27:52 -0400 On Tue, 16 Aug 2005 16:15:10 +0000 (UTC), "Reg Edwards" wrote: >Everything appears quiet on the Western Front. So let's waken things >up. > >Is there anybody about who still imagines that an SWR meter, located >in the transmitter, or even on the other side of the tuner, indicates >SWR on the transmission line between transmitter and the antenna? >---- >Reg, G4FGQ > Yes, Reg, I know there are some morons out there who believe that. Let's see who wakes up with this. Walt Article: 216383 of rec.radio.amateur.antenna From: "David G. Nagel" Subject: Re: Homebrew HT antenna References: Message-ID: Date: Tue, 16 Aug 2005 17:00:37 GMT Ken Bessler wrote: > I just built a 1/4 wave (146mhz) antenna for my dual band > HT (Yaesu FT-51r). It's simply 19.25" of .025" piano wire > soldered into the core of a broken SO-239/BNC adapter. > The BNC center pin just sits in the socket in the radio with > a rubber bnc cap keeping the antenna load off the pin and > keeping dirt out. It's all a press fit and it seems to work great. > > Comparing it to my OEM rubber duck, it's about 2-4 S units > better on 2m & 440. As I understand it, it works as a 3/4 > wave antenna on UHF and should be a good match but the > radiation angle won't be perfect. > > My question is this: What would be the radiation angle on 440? > > I know I'm picking nits here but I'm interested in the theroy. > > P.S. The FT-51R is an all metal case HT which should provide > a good capacitive couple to my hand but what about when > the HT is on the back of my backpack? What counterpoise do > I get then? Maybe from the mic cable? > -- > 73 de Ken KGØWX - Flying Pigs #-1055 > Elecraft K2 #4913 > > In a HT I would not worry about radiation angle. Dave WD9BDZ Article: 216384 of rec.radio.amateur.antenna Subject: Re: Popular Misconceptions. From: Cecil Moore Date: Tue, 16 Aug 2005 12:35:20 -0500 Message-ID: <1124213926_3003@spool6-east.superfeed.net> References: Reg Edwards wrote: > Is there anybody about who still imagines that an SWR meter, located > in the transmitter, or even on the other side of the tuner, indicates > SWR on the transmission line between transmitter and the antenna? If it's a stand-alone SWR meter with three foot 50 ohm coax cables on the input and output, then it is located in a 50 ohm environment and is indeed indicating the correct SWR. The thing that makes an SWR meter indicate a valid value is if its physical environment is extensive enough to force the impedance ratio of Vfor/Ifor = Vref/Iref = 50 ohms. Back when I got my first license, those things were called transmatches. Seems you would like that name better than SWR meter. TRANSmitter MATCHing device = Transmatch. -- 73, Cecil, http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- Article: 216385 of rec.radio.amateur.antenna Date: 16 Aug 2005 17:50:22 -0000 Message-ID: <20050816175022.12152.qmail@nym.alias.net> From: nobody@anon.lcs.mit.edu (Anonymous) Subject: Homebrew HT antenna References: The EZNEC program can be used to model the antenna which you constructed and show you the expected radiation pattern. >From playing with 3/4 wave antennas in the past, I would expect lobes to form which pushed the radiation angle towards the sky--where few HT exists. Article: 216386 of rec.radio.amateur.antenna From: "Reg Edwards" Subject: Re: Popular Misconceptions. Date: Tue, 16 Aug 2005 18:18:00 +0000 (UTC) Message-ID: References: <9t44g19j8s8ojopba45di4l7b54j7cmjbc@4ax.com> "Walter Maxwell" wrote - > "Reg Edwards" wrote - > >Everything appears quiet on the Western Front. So let's waken things > >up. > > > >Is there anybody about who still imagines that an SWR meter, located > >in the transmitter, or even on the other side of the tuner, indicates > >SWR on the transmission line between transmitter and the antenna? > >---- > >Reg, G4FGQ > > > Yes, Reg, I know there are some morons out there who believe that. > Let's see who wakes up with this. > > Walt ======================================= Hello again Walt, I trust you are well. I wouldn't go so far as listing them as morons. Just unfortunates who have been afflicted by the plagiarist outpourings of old wives who are still in the 1950's A long thread is not expected. People are reluctant to admit past beliefs. I was just testing the present situation. But you never can tell, people may write in just to disprove my expectations. There's much to be learned in addition to mere SWR. ---- Yours, Reg. Article: 216387 of rec.radio.amateur.antenna From: "Reg Edwards" Subject: Re: Popular Misconceptions. Date: Tue, 16 Aug 2005 19:17:33 +0000 (UTC) Message-ID: References: <1124213926_3003@spool6-east.superfeed.net> Cecil your argument begins with a big "If". If only pigs could fly! Nevertherless I agree with your name Transmatch. As you already know, I myself advocate renaming the SWR meter as a TLI - Transmitter Loading Indicator - which is what it actually is. By no stretch of the imagination is it a Standing Wave Meter. ---- Reg. Article: 216388 of rec.radio.amateur.antenna From: Roy Lewallen Subject: Re: Homebrew HT antenna Date: Tue, 16 Aug 2005 12:37:35 -0700 Message-ID: <11g4g43ra2sc53@corp.supernews.com> References: Ken Bessler wrote: > I just built a 1/4 wave (146mhz) antenna for my dual band > HT (Yaesu FT-51r). It's simply 19.25" of .025" piano wire > soldered into the core of a broken SO-239/BNC adapter. > The BNC center pin just sits in the socket in the radio with > a rubber bnc cap keeping the antenna load off the pin and > keeping dirt out. It's all a press fit and it seems to work great. > > Comparing it to my OEM rubber duck, it's about 2-4 S units > better on 2m & 440. As I understand it, it works as a 3/4 > wave antenna on UHF and should be a good match but the > radiation angle won't be perfect. > > My question is this: What would be the radiation angle on 440? It's just about impossible to say. Your body is radiating at least as much as the "antenna", and the pattern is determined the combination. > I know I'm picking nits here but I'm interested in the theroy. The theory says that if you put any current I into the antenna, an equal current I flows from the inside of the antenna connector shell over the edge, over the HT case, and into any conductor it can find. The amount of radiation from the antenna is proportional to the current on each part of the antenna multiplied by the length of wire it flows on. The radiation from the HT case or your body is proportion to the current on each part of it multiplied by the length of the conductor it flows on. Your body and the HT case follow the same rules as the "antenna", and are at least as important a part of the radiating system. The overall pattern is the sum of the fields from all those current-conductor length products, from both the "antenna" and your body. > > P.S. The FT-51R is an all metal case HT which should provide > a good capacitive couple to my hand but what about when > the HT is on the back of my backpack? What counterpoise do > I get then? Maybe from the mic cable? Yes, the mic cable and case will become the other half of the antenna system. If you unplug the mic, the current into the "antenna" will drop (on 2 meters at least) because the impedance of the outside of the case will be relatively high because of its short length. And only the amount of current that flows on the outside of the case will flow into the "antenna". Roy Lewallen, W7EL Article: 216389 of rec.radio.amateur.antenna Subject: Re: Popular Misconceptions. From: Cecil Moore Date: Tue, 16 Aug 2005 14:57:08 -0500 Message-ID: <1124222434_5@spool6-east.superfeed.net> References: <1124213926_3003@spool6-east.superfeed.net> Reg Edwards wrote: > Cecil your argument begins with a big "If". > If only pigs could fly! An SWR meter is no different from any other piece of measuring equipment. One shouldn't use a DC ohm-meter to measure RF impedance. One shouldn't use an SWR meter designed for a Z0=50 ohm environment in an environment where Z0 is unknown or non-existant. Earlier, I didn't mean to imply that the SWR meter was known as a Transmatch. It was the entire antenna tuner that was (and still is) known as a Transmatch. -- 73, Cecil, http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! >100,000 Newsgroups ---= East/West-Coast Server Farms - Total Privacy via Encryption =--- Article: 216390 of rec.radio.amateur.antenna From: "News Xtra" Subject: G5RV in horizontal L Message-ID: Date: Wed, 17 Aug 2005 09:52:45 +1200 Guy. My best option is to install a G5VR but having one half bend back 90 degrees horizontally so that when you look down from the top it is L shaped. My question is, will this degrade performance very much and in what way. Many thanks and regards, John ZL2TTM Article: 216391 of rec.radio.amateur.antenna From: "David J Windisch" References: <1124213926_3003@spool6-east.superfeed.net> Subject: Re: Popular Misconceptions. Message-ID: Date: Tue, 16 Aug 2005 21:56:45 GMT Hi, Reg: Reading the mail, I assert that your unsnipped statement has been **quite** literally accepted, and applied, by many imaginations. It is akin to writing, eg, that "Mr Churchill spared nothing to win WWII." ;o) Kutgw, OM. 73, Dave, N3HE "Reg Edwards" wrote in message news:ddte4c$chl$1@nwrdmz03.dmz.ncs.ea.ibs-infra.bt.com... SNIP > By no stretch of the imagination is it a Standing Wave Meter. > ---- > Reg. > > Article: 216392 of rec.radio.amateur.antenna From: "Hal Rosser" References: Subject: Re: You might be an old timer Message-ID: Date: Tue, 16 Aug 2005 18:15:36 -0400 Ya might be an old-timer if your xyl gives you viagra so you don't roll off the bed. Article: 216393 of rec.radio.amateur.antenna From: "flashback" Subject: Re: Popular Misconceptions. Date: Tue, 16 Aug 2005 17:24:43 -0500 Message-ID: <11g4psr605gr8b9@corp.supernews.com> References: <1124213926_3003@spool6-east.superfeed.net> "David J Windisch" wrote in message news:xitMe.92639$zY4.77507@tornado.ohiordc.rr.com... > Hi, Reg: > > Reading the mail, I assert that your unsnipped statement has been > **quite** literally accepted, and applied, by many imaginations. > > It is akin to writing, eg, that "Mr Churchill spared nothing to win WWII." > ;o) > > Kutgw, OM. > > 73, Dave, N3HE > > "Reg Edwards" wrote in message > news:ddte4c$chl$1@nwrdmz03.dmz.ncs.ea.ibs-infra.bt.com... > SNIP > >> By no stretch of the imagination is it a Standing Wave Meter. >> ---- >> Reg. Why is there a formula to quantify reflected power from an SWR reading? I have been using SWR meters all my life to check on reflected power from the antenna. This simple act has worked very very well for me through the years. I did this in my younger days professionaly for Raytheon. When I had tuned the antenna tuner or the antenna itself for a 1:1 match, suddenly I have a system that talks a long way. What was wrong with that? Prairie Moron Article: 216394 of rec.radio.amateur.antenna From: "Caveat Lector" Subject: Test Only Message-ID: <%muMe.965$uO2.479@fed1read07> Date: Tue, 16 Aug 2005 16:09:48 -0700 Hmm my NG's are not downloading Test to see if I can post -- CL -- I doubt, therefore I might be ! Article: 216395 of rec.radio.amateur.antenna From: John Smith Subject: Re: Test Only Message-ID: References: <%muMe.965$uO2.479@fed1read07> Date: Tue, 16 Aug 2005 16:14:31 -0700 If your newgroups are not downloading, how are you going to see this post? On Tue, 16 Aug 2005 16:09:48 -0700, Caveat Lector wrote: > Hmm my NG's are not downloading > Test to see if I can post Article: 216396 of rec.radio.amateur.antenna From: W9DMK (Robert Lay) Subject: Re: Popular Misconceptions. Date: Tue, 16 Aug 2005 23:31:42 GMT Message-ID: <430276ea.5980038@news.crosslink.net> References: On Tue, 16 Aug 2005 16:15:10 +0000 (UTC), "Reg Edwards" wrote: >Everything appears quiet on the Western Front. So let's waken things >up. > >Is there anybody about who still imagines that an SWR meter, located >in the transmitter, or even on the other side of the tuner, indicates >SWR on the transmission line between transmitter and the antenna? In all seriousness, Reg, don't you think it would be better to be a bit more clear about what you mean by the "other side of the tuner". So far as I'm concerned, until I know what side of the tuner to which you refer, I wouldn't want to comment. Bob, W9DMK, Dahlgren, VA Replace "nobody" with my callsign for e-mail w9dmkcrosslinknet http://www.qsl.net/w9dmk http://zaffora/f2o.org/W9DMK/W9dmk.html Article: 216397 of rec.radio.amateur.antenna From: Roy Lewallen Subject: Re: Popular Misconceptions. Date: Tue, 16 Aug 2005 17:05:25 -0700 Message-ID: <11g4vq9bsmds713@corp.supernews.com> References: <430276ea.5980038@news.crosslink.net> Reg, Instead of yet another posting on the topic beyond the 20 or so you've already blessed us with proposing the new TLA (three letter acronym) of TLI, why don't you start by contacting Agilent (formerly HP), Narda, Anritsu, and the other manufacturers of precision terminators? Surely those professionals will see the impeccable logic of your proposal, and will immediately cease publishing a maximum SWR specification for their terminators. Then the manufacturers of RF transistors, directional couplers, attenuators, and other RF devices, which now have input SWR specifications, will follow. Of course, they can't call the former SWR the TLI, since it's not indicating anything, and there's not necessarily a transmitter involved. And the whole object here is to be consistent and rational, after all. So how about "RER" for "Reg Edwards Ratio", as in "guaranteed maximum RER = 1.1"? No one should confuse that with anything else. Wouldn't this be a wonderful world (AWW) if only we were always strictly logical (ASL)? Roy Lewallen, W7EL Article: 216398 of rec.radio.amateur.antenna From: "Reg Edwards" Subject: Re: Popular Misconceptions. Date: Wed, 17 Aug 2005 01:10:31 +0000 (UTC) Message-ID: References: <430276ea.5980038@news.crosslink.net> "W9DMK (Robert Lay)" wrote > In all seriousness, Reg, don't you think it would be better to be a > bit more clear about what you mean by the "other side of the tuner". > So far as I'm concerned, until I know what side of the tuner to which > you refer, I wouldn't want to comment. ================================ Bob, To follow that American tennis player : "You can't be serious! *!!*&$***!!! " If initially it's inside the transmitter then on the other side of the tuner implies it's on the other side of the tuner from the transmitter. Unless, of course, it's mounted in the 115V power lead TO the transmitter. Now can you comment? ;o) ---- Reg. Article: 216399 of rec.radio.amateur.antenna From: "Reg Edwards" Subject: Re: Test Only Date: Wed, 17 Aug 2005 01:53:32 +0000 (UTC) Message-ID: References: <%muMe.965$uO2.479@fed1read07> "John Smith" wrote in message news:pan.2005.08.16.23.14.29.474984@gmail.com... > If your newgroups are not downloading, how are you going to see this post? > > On Tue, 16 Aug 2005 16:09:48 -0700, Caveat Lector wrote: > > > Hmm my NG's are not downloading > > Test to see if I can post > On MY screen John's response to Caveat's test message appeared apparently before Caveat' sent it. But it located itself in the correct sequence. --- Reg. Article: 216400 of rec.radio.amateur.antenna From: "Reg Edwards" Subject: Re: Popular Misconceptions. Date: Wed, 17 Aug 2005 01:53:32 +0000 (UTC) Message-ID: References: <1124213926_3003@spool6-east.superfeed.net> "David J Windisch" wrote > Reading the mail, I assert that your unsnipped statement has been **quite** > literally accepted, and applied, by many imaginations. > > It is akin to writing, eg, that "Mr Churchill spared nothing to win WWII." > ;o) ================================ It is certainly true that Winnie spared nothing to lose the Battle of the Dardanelles in WW1. ---- Reg. Article: 216401 of rec.radio.amateur.antenna From: "Reg Edwards" Subject: Re: Popular Misconceptions. Date: Wed, 17 Aug 2005 01:59:59 +0000 (UTC) Message-ID: References: <430276ea.5980038@news.crosslink.net> <11g4vq9bsmds713@corp.supernews.com> Roy, you don't like me, do you? Article: 216402 of rec.radio.amateur.antenna From: Roy Lewallen Subject: Re: Congrats to K6MHE Date: Tue, 16 Aug 2005 19:08:28 -0700 Message-ID: <11g570vr3t2me81@corp.supernews.com> References: I just got my September issue today, and want to add my kudos. Well done, Danny, and I'm really pleased to see Wes' clever idea resurrected. I never thought it got the attention it deserved. Roy Lewallen, W7EL Wes Stewart wrote: > Our own Danny Richardson has the lead article in the September issue > of QST. > > Nicely done. Article: 216403 of rec.radio.amateur.antenna Date: Tue, 16 Aug 2005 22:29:25 -0500 From: Tom Ring Subject: Re: Popular Misconceptions. References: <430276ea.5980038@news.crosslink.net> <11g4vq9bsmds713@corp.supernews.com> Message-ID: <4302af15$0$32198$39cecf19@news.twtelecom.net> Reg Edwards wrote: > Roy, you don't like me, do you? > > I don't think emotions are involved here, Reg, it seems to have to do with reality. tom K0TAR Article: 216404 of rec.radio.amateur.antenna From: W9DMK (Robert Lay) Subject: Re: Popular Misconceptions. Date: Wed, 17 Aug 2005 03:54:09 GMT Message-ID: <4302b451.21699472@news.crosslink.net> References: <430276ea.5980038@news.crosslink.net> On Wed, 17 Aug 2005 01:10:31 +0000 (UTC), "Reg Edwards" wrote: > >"W9DMK (Robert Lay)" wrote >> In all seriousness, Reg, don't you think it would be better to be a >> bit more clear about what you mean by the "other side of the tuner". >> So far as I'm concerned, until I know what side of the tuner to >which >> you refer, I wouldn't want to comment. >================================ > >Bob, > >To follow that American tennis player : "You can't be serious! >*!!*&$***!!! " > >If initially it's inside the transmitter then on the other side of the >tuner implies it's on the other side of the tuner from the >transmitter. > >Unless, of course, it's mounted in the 115V power lead TO the >transmitter. > >Now can you comment? ;o) Dear Reg, Yes, now I can. "Will I", is another matter. I may just wait until the pervasive hostility abates. Besides which, this seems to be the time for a little studied chin-stroking whilst sipping a soft Rose'. Bob, W9DMK, Dahlgren, VA Replace "nobody" with my callsign for e-mail w9dmkcrosslinknet http://www.qsl.net/w9dmk http://zaffora/f2o.org/W9DMK/W9dmk.html Article: 216405 of rec.radio.amateur.antenna From: "Mr Fed UP" References: <4301F707.131FA0C@antennaman.com> Subject: Re: OT getting back in to radio housing covenent question Message-ID: Date: Wed, 17 Aug 2005 00:46:34 -0500 Gee thanks. Read many. Now may have to move to another planet. No wonder some folks go nuts. The same folks that b--ch and complain would be the first to beg for help in an emergency eh. Now I know why all the blacksmith shops in the westerns were on the end of town.... covenants ran em off. I wonder how covenants come in to play if I get a good size motor home or RV and hang a humongous antenna and crank up on it.... mobile radio. Maybe with some directive antennas I could squirt at the complainers homes. LOL Good luck everyone. I'll put mine up and take a chance no one notices with the trees in the background and the motorcycle/motorboat boob next door Just the individual not the groups. varooooom!!! "joey" wrote in message news:4301F707.131FA0C@antennaman.com... > hi, > > There is a topic on www.eham.net for > antenna restrictions in the forums section. > > Lots of good ideas there but best to > check with the local lawyers. > > Good thing is perhaps everyone has > forgotten about these restrictions if any. > > Good luck with your health issues. > > 73 joey > Article: 216406 of rec.radio.amateur.antenna From: Brian Howie Subject: Re: Popular Misconceptions. Date: Wed, 17 Aug 2005 08:24:56 +0100 Message-ID: References: In message , Reg Edwards writes >Everything appears quiet on the Western Front. So let's waken things >up. > >Is there anybody about who still imagines that an SWR meter, located >in the transmitter, or even on the other side of the tuner, indicates >SWR on the transmission line between transmitter and the antenna? >---- I use mine as an SW meter (Something Wrong ) DIJ -- Brian Howie Article: 216407 of rec.radio.amateur.antenna From: "David J Windisch" References: <1124213926_3003@spool6-east.superfeed.net> Subject: Re: Popular Misconceptions. Message-ID: <3aDMe.96261$zY4.38130@tornado.ohiordc.rr.com> Date: Wed, 17 Aug 2005 09:10:23 GMT Thank goodness for nothing spared. With nothing spared in that battle, there was plenty of nothing to spare for WWII. 73, Dave, N3HE "Reg Edwards" wrote in message news:ddu5as$6pb$2@nwrdmz01.dmz.ncs.ea.ibs-infra.bt.com... > > "David J Windisch" wrote >> Reading the mail, I assert that your unsnipped statement has been > **quite** >> literally accepted, and applied, by many imaginations. >> >> It is akin to writing, eg, that "Mr Churchill spared nothing to win > WWII." >> ;o) > ================================ > It is certainly true that Winnie spared nothing to lose the Battle of > the Dardanelles in WW1. > ---- > Reg. > > Article: 216408 of rec.radio.amateur.antenna From: "David J Windisch" References: <430276ea.5980038@news.crosslink.net> <11g4vq9bsmds713@corp.supernews.com> Subject: Re: Popular Misconceptions. Message-ID: Date: Wed, 17 Aug 2005 09:13:13 GMT Reg, may you be spared of the need to be liked. 73, Dave, N3HE "Reg Edwards" wrote in message news:ddu5mv$753$1@nwrdmz03.dmz.ncs.ea.ibs-infra.bt.com... > Roy, you don't like me, do you? > > Article: 216409 of rec.radio.amateur.antenna From: "Alan Nixon" Subject: MALDOL HVU-8 Message-ID: Date: Wed, 17 Aug 2005 11:03:50 GMT Has anyone in the UK used one of these antennas ? If so can you tell me about the results you have had from it Article: 216410 of rec.radio.amateur.antenna From: Walter Maxwell Subject: Re: Popular Misconceptions. Message-ID: References: <9t44g19j8s8ojopba45di4l7b54j7cmjbc@4ax.com> Date: Wed, 17 Aug 2005 08:27:40 -0400 On Tue, 16 Aug 2005 18:18:00 +0000 (UTC), "Reg Edwards" wrote: > >"Walter Maxwell" wrote - >> "Reg Edwards" wrote - >> >Everything appears quiet on the Western Front. So let's waken >things >> >up. >> > >> >Is there anybody about who still imagines that an SWR meter, >located >> >in the transmitter, or even on the other side of the tuner, >indicates >> >SWR on the transmission line between transmitter and the antenna? >> >---- >> >Reg, G4FGQ >> > >> Yes, Reg, I know there are some morons out there who believe that. >> Let's see who wakes up with this. >> >> Walt >======================================= > >Hello again Walt, I trust you are well. > >I wouldn't go so far as listing them as morons. Just unfortunates who >have been afflicted by the plagiarist outpourings of old wives who are >still in the 1950's > >A long thread is not expected. People are reluctant to admit past >beliefs. I was just testing the present situation. But you never can >tell, people may write in just to disprove my expectations. There's >much to be learned in addition to mere SWR. >---- >Yours, Reg. > Hi Reg, In using 'morons', I tend to exaggerate. I'm quite well, thank you, and hope you are the same. I don't think I'm making too great an assumption that you are, because you wit is still as sharp as ever. Walt Article: 216411 of rec.radio.amateur.antenna From: John Smith Subject: Re: Popular Misconceptions. Message-ID: References: <430276ea.5980038@news.crosslink.net> <11g4vq9bsmds713@corp.supernews.com> Date: Wed, 17 Aug 2005 08:23:52 -0700 Reg: The apache american Indians measured their greatness in the greatness of their enemies, may you be fortunate enough to secure BIG ONES! John On Wed, 17 Aug 2005 01:59:59 +0000, Reg Edwards wrote: > Roy, you don't like me, do you? Article: 216412 of rec.radio.amateur.antenna From: Jim Higgins Subject: Re: Popular Misconceptions. Message-ID: References: <430276ea.5980038@news.crosslink.net> Date: Wed, 17 Aug 2005 19:27:41 GMT On Wed, 17 Aug 2005 01:10:31 +0000 (UTC), in , "Reg Edwards" wrote: > >"W9DMK (Robert Lay)" wrote >> In all seriousness, Reg, don't you think it would be better to be a >> bit more clear about what you mean by the "other side of the tuner". >> So far as I'm concerned, until I know what side of the tuner to >which >> you refer, I wouldn't want to comment. >================================ > >Bob, > >To follow that American tennis player : "You can't be serious! >*!!*&$***!!! " > >If initially it's inside the transmitter then on the other side of the >tuner implies it's on the other side of the tuner from the >transmitter. > >Unless, of course, it's mounted in the 115V power lead TO the >transmitter. > >Now can you comment? ;o) Reg, There's was no "initially" involved here... at least not initially. As you posed the issue, the SWR meter didn't move >from one place TO another; it was simply in one place OR the other. Since your object clearly is to provoke those who aren't rigorous to 9 decimal places in their thinking, I think it only fair that you express yourself carefully to 9 decimal places. So, is that outboard SWR meter on the "other side" that's between the xmitter and tuner or on the "other side" that's between the tuner and the feed line? Also, what precisely are all the relevant characteristics of all connecting cables involved? Please carefully describe the universe in the vicinity of this mythical xmitter - SWR meter - tuner - feed line system as it relates to the issues you raise so we may have all the variables needed to respond in the informed manner you surely seek. Jim Higgins, KB3PU Article: 216413 of rec.radio.amateur.antenna From: Pat Cox Subject: Cushcraft R-7000 traps Date: Wed, 17 Aug 2005 15:30:00 -0400 Message-ID: <43039038.4E13AFF2@gloryroad.net> Who posted the R-7000 traps a few weeks ago? Are they still available? pcox Article: 216414 of rec.radio.amateur.antenna Subject: Re: Popular Misconceptions. From: Cecil Moore Date: Wed, 17 Aug 2005 15:55:48 -0500 Message-ID: <1124312305_2789@spool6-east.superfeed.net> References: <430276ea.5980038@news.crosslink.net> <11g4vq9bsmds713@corp.supernews.com> John Smith wrote: > The apache american Indians measured their greatness in the greatness of > their enemies, may you be fortunate enough to secure BIG ONES! Since you were the first to be "ploinked", you can be president of the club. :-) -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- Article: 216415 of rec.radio.amateur.antenna From: John Smith Subject: Re: Popular Misconceptions. Message-ID: References: <430276ea.5980038@news.crosslink.net> <11g4vq9bsmds713@corp.supernews.com> <1124312305_2789@spool6-east.superfeed.net> Date: Wed, 17 Aug 2005 14:03:09 -0700 Cecil: OMG! You mean this is a popularity contest? Darn, I must be in the wrong building... yanno, the "50's" are a hard time. The youngsters don't wanna hang with ya, and the oldsters move away >from ya too... only hope, more 50'ies types! John On Wed, 17 Aug 2005 15:55:48 -0500, Cecil Moore wrote: > John Smith wrote: >> The apache american Indians measured their greatness in the greatness of >> their enemies, may you be fortunate enough to secure BIG ONES! > > Since you were the first to be "ploinked", you can be > president of the club. :-) Article: 216416 of rec.radio.amateur.antenna Subject: Re: Popular Misconceptions. From: Cecil Moore Date: Wed, 17 Aug 2005 16:05:51 -0500 Message-ID: <1124312907_2819@spool6-east.superfeed.net> References: <430276ea.5980038@news.crosslink.net> <11g4vq9bsmds713@corp.supernews.com> Reg Edwards wrote: > Roy, you don't like me, do you? Reg, if he really doesn't like you, he will "ploink" you, akin to being shunned by your religious sect (a fate worse than death). :-) If you do succeed in getting "ploinked", you can join our prestigious club (but not before). What I did to get "ploinked" was to say that an antenna is a "distributed network", not a "lumped circuit". Who knows, maybe that would work for you also to get "ploinked"? -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- Article: 216417 of rec.radio.amateur.antenna Subject: Re: Popular Misconceptions. From: Cecil Moore Date: Wed, 17 Aug 2005 16:16:04 -0500 Message-ID: <1124313520_2833@spool6-east.superfeed.net> References: <430276ea.5980038@news.crosslink.net> <11g4vq9bsmds713@corp.supernews.com> <1124312305_2789@spool6-east.superfeed.net> John Smith wrote: > Cecil: OMG! You mean this is a popularity contest? Obviously, it is. If you get "ploinked" by the gurus, it means you are "lower than the lowest layer of whale cagada in the deepest part of the ocean". That's what I was as a freshman at Texas A&M in 1955 and that's what I am still today on this newsgroup, half a century later. But even though you were "ploinked" first, I hold the record for being "ploinked" by the most gurus. But you can be president anyway. "Vice"-president has a certain ring to it that appeals to my dark side. :-) -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- Article: 216418 of rec.radio.amateur.antenna From: John Smith Subject: Re: Popular Misconceptions. Message-ID: References: <430276ea.5980038@news.crosslink.net> <11g4vq9bsmds713@corp.supernews.com> <1124312305_2789@spool6-east.superfeed.net> <1124313520_2833@spool6-east.superfeed.net> Date: Wed, 17 Aug 2005 15:02:52 -0700 Cecil: You obviously have a deeper/better understanding of many antenna, feed-line, etc. workings, so does Roy, so does Richard, so do many more, I can live with that--if you guys didn't--I'd leave! I may kid you guys, but we all know... I will accept you are also the "Master of the Plonk" too, but I am gaining momentum, give me some time man! I barely was able to grab the "plonk lead" on Reg, already the man is breathing down my collar! I fear he may gain an additional plonk any day now! But, one good thing, when in "Plonk Purgatory", the gods cannot see you... Frankly though, I don't trust 'em, I get the feeling they peek now and then, I would, would not you? John On Wed, 17 Aug 2005 16:16:04 -0500, Cecil Moore wrote: > John Smith wrote: >> Cecil: OMG! You mean this is a popularity contest? > > Obviously, it is. If you get "ploinked" by the gurus, it means > you are "lower than the lowest layer of whale cagada in the > deepest part of the ocean". That's what I was as a freshman > at Texas A&M in 1955 and that's what I am still today on this > newsgroup, half a century later. But even though you were "ploinked" > first, I hold the record for being "ploinked" by the most gurus. But > you can be president anyway. "Vice"-president has a certain ring to > it that appeals to my dark side. :-) Article: 216419 of rec.radio.amateur.antenna From: solidgoldZZZ@optonline.net (Ron Goldstein--KA2IIA) Subject: Looking for Butternut HF9V Message-ID: <4303c056.210789@news.optonline.net> Date: Wed, 17 Aug 2005 22:55:20 GMT Hi all, I am looking for a used Butternut HF9V vertical. If you have one for sale, please reply to this message, and let me know its' condition, and how old it is (they changed in the late 90's). Remove the "ZZZ" from my E-mail address to send me mail. Thanks, RON KA2IIA ======================================================== Remove the ZZZ from my E-mail address to send me E-mail. Article: 216420 of rec.radio.amateur.antenna From: "Ken Bessler" References: <43039038.4E13AFF2@gloryroad.net> Subject: Re: Cushcraft R-7000 traps Message-ID: Date: Wed, 17 Aug 2005 18:14:15 -0500 "Pat Cox" wrote in message news:43039038.4E13AFF2@gloryroad.net... > > Who posted the R-7000 traps a few weeks ago? Are they still available? > pcox > It was Tim, K0FL but he posted it on rec.radio.swap. I did a Google advanced group search by date with the keyword "7000" in any group starting with rec.radio.* Here is an excerpt from Tim's post: > I have the CT1 and CT2 traps for the R-7000 for sale. > Price is $25 each shipped lower 48 or make offer on both. > > 73 de Tim KØFL > > > tranda at cox.net > Remember, Google is your friend - resistance is futile..... -- 73 de Ken KGØWX - Flying Pigs #-1055 Elecraft K2 #4913 Article: 216421 of rec.radio.amateur.antenna From: John Smith Subject: Re: Popular Misconceptions. Message-ID: References: <430276ea.5980038@news.crosslink.net> <11g4vq9bsmds713@corp.supernews.com> <1124312305_2789@spool6-east.superfeed.net> Date: Wed, 17 Aug 2005 14:36:24 -0700 Cecil: You know, that wasn't right, I just passed that off with such a "frivolous air." It is a shame to see one erect him/herself as a "God", intolerant, commanding and shoving a stone tablet into your hands. Removing themselves to a "throne" which none can visit (debate, argument, learning) except if commanded (allowed?) to do so. (must make it difficult to sit down, for the "God" I mean, attempting to take a seat with multiple lips stuck to yer bottom! Poor bugger! ) What causes this to occur I really can only guess at, best guess is blinded by the light of their own ego, but may affect the elderly more-so than other groups, we all need to be aware, we will all be there... I understand and pity them, have seen the same within my immediate family... Sorry, but amateur radio is meant to be a hobby (at least one use of it is!), I don't think it is a crime to have a bit of fun either. Amateur radio assuming a "pseudo-military" air ruins its' use to many and attracts far too many with a rigid, disciplinarian and warrior mentality... And, sorry again, I see newsgroups as a "social cocktail party", or a "town hall meeting", not a church where you worship gods and get a sermon by a priest... of course, my demeanor here has all ready given that away--most likely... I like the complex and intricate here--your arguments along with richards' and others are appreciated (you cause me to dig out my programmable calculator and follow along), and the practical is much appreciated too, even the "unconventional" challenging the accepted is/are good for brain food... John On Wed, 17 Aug 2005 15:55:48 -0500, Cecil Moore wrote: > John Smith wrote: >> The apache american Indians measured their greatness in the greatness of >> their enemies, may you be fortunate enough to secure BIG ONES! > > Since you were the first to be "ploinked", you can be > president of the club. :-) Article: 216422 of rec.radio.amateur.antenna From: John Smith Subject: Re: Indoor AM Radio Extension Message-ID: References: <1124329472.084693.265940@g43g2000cwa.googlegroups.com> Date: Wed, 17 Aug 2005 19:14:28 -0700 ECJ: Wind ~10 turns of ~22 gauge wire on an old ferrite loopstick rod, use mini coax connected to this loopstick over to a window, if the window frame is at gnd potential, hook the braid of the coax to it (if not, look for a close gnd), take the center coax lead out, around, through the window and to a random length wire. (once I was in the middle of an office floor in a cubical, popped the coax up to ceiling tile, then across the top of the tile to the window. Now it is only necessary to move the ferrite rod and coil (you can wrap it with electrical tape to make it secure) around the am radio case to find the internal ferrite loopstick which the one you constructed will now couple to, just tune in a weak station and move it around, you will know when you find it and have it orientated in the correct direction, tape it in place and you are good to go! ... adapt the above as necessary... John On Wed, 17 Aug 2005 18:44:32 -0700, ECJ wrote: > My radio is in the middle of a building out in the country and I can't > seem to pick up am radio. To solve this problem I tried using speaker > wire to extend it approximately 25 feet to the window in the office > next door reconnecting it to the loop antenna that came with the radio. > I had no luck. Is speaker wire an effective way to extend an AM > antenna? If so what would be the best way to get better results. I > thought maybe tinning the end of the speaker cable that goes into the > radio , as well as soldering the speaker wire directly to the am > antenna instead of just wrapping it might help. Any suggestions are > appreciated. > > ECJ Article: 216423 of rec.radio.amateur.antenna Subject: Re: Indoor AM Radio Extension From: Cecil Moore Date: Wed, 17 Aug 2005 22:08:01 -0500 Message-ID: <1124334638_3219@spool6-east.superfeed.net> References: <1124329472.084693.265940@g43g2000cwa.googlegroups.com> ECJ wrote: > My radio is in the middle of a building out in the country and I can't > seem to pick up am radio. To solve this problem I tried using speaker > wire to extend it approximately 25 feet to the window in the office > next door reconnecting it to the loop antenna that came with the radio. > I had no luck. Is speaker wire an effective way to extend an AM > antenna? If so what would be the best way to get better results. I > thought maybe tinning the end of the speaker cable that goes into the > radio , as well as soldering the speaker wire directly to the am > antenna instead of just wrapping it might help. Any suggestions are > appreciated. This might work for you: http://www.ccrane.com/antennas/am-antennas/select-a-tenna-model-m.aspx -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! >100,000 Newsgroups ---= East/West-Coast Server Farms - Total Privacy via Encryption =--- Article: 216424 of rec.radio.amateur.antenna From: "TJ" References: <3irsf1h4716dgkafn1jbk26je4v2fkuvh8@4ax.com> <458a7$42fe8952$97d55c26$21961@ALLTEL.NET> <11ft3d9222qbua3@corp.supernews.com> Subject: Re: You might be an old timer Message-ID: Date: Thu, 18 Aug 2005 03:14:46 GMT Works real good when mixed with black powder gun powder, home made fireworks, Real colourful. Opps I think i aged myself. Seems to me some one tried to make a capacitor with it too, if my memory is working, again. Al VE7AGW Port Alberni, BC Canada "Ed Price" wrote in message news:qGALe.1696$Us5.1459@fed1read02... > > "H. Adam Stevens, NQ5H" wrote in message > news:11ft3d9222qbua3@corp.supernews.com... >> Fascinating. >> Steel wool is mostly empty space. >> 73 >> H. > > > Even more empty after the first spark! > -- > Ed > WB6WSN > El Cajon, CA USA > > Article: 216425 of rec.radio.amateur.antenna From: "W5GT" References: Subject: Re: G5RV in horizontal L Message-ID: Date: Wed, 17 Aug 2005 23:13:21 -0500 I've had poor luck even using the G5RV as an inverter V. Dave - W5GT "Frank" wrote in message news:iXIMe.184795$9A2.66584@edtnps89... > "News Xtra" wrote in message > news:LetMe.3398$iM2.312159@news.xtra.co.nz... > > Guy. My best option is to install a G5VR but having one half bend back 90 > > degrees horizontally so that when you look down from the top it is L > > shaped. > > My question is, will this degrade performance very much and in what way. > > Many thanks and regards, > > John ZL2TTM > > Need more information: How high is the antenna, what type of transmission > line do you plan on using, and what frequencies will it be used on? > > Bending the antenna will reduce the real part of the input impedance, thus > increasing transmission line losses. It will also tend to increase its > directivity in the direction of the "vee". > > The G5RV antenna tends to exhibit higher transmission line losses. See the > extensive analysis at www.vk1od.net > > Suggest you obtain the free download of EZNEC from www.eznec.com then you > can analyze the antenna for yourself. Also there are many free programs > available for transmission line analysis. Probably Reg (G4FGQ) has one for > free. > > Regards, > > Frank (VE6CB) > > Article: 216426 of rec.radio.amateur.antenna From: "W5GT" References: Subject: Re: G5RV in horizontal L Message-ID: Date: Wed, 17 Aug 2005 23:15:34 -0500 "W5GT" wrote in message news:Q3UMe.52881$vb3.29097@fe07.lga... > I've had poor luck even using the G5RV as an inverted V. > > Dave - W5GT > > "Frank" wrote in message > news:iXIMe.184795$9A2.66584@edtnps89... > > "News Xtra" wrote in message > > news:LetMe.3398$iM2.312159@news.xtra.co.nz... > > > Guy. My best option is to install a G5VR but having one half bend back > 90 > > > degrees horizontally so that when you look down from the top it is L > > > shaped. > > > My question is, will this degrade performance very much and in what way. > > > Many thanks and regards, > > > John ZL2TTM > > > > Need more information: How high is the antenna, what type of transmission > > line do you plan on using, and what frequencies will it be used on? > > > > Bending the antenna will reduce the real part of the input impedance, thus > > increasing transmission line losses. It will also tend to increase its > > directivity in the direction of the "vee". > > > > The G5RV antenna tends to exhibit higher transmission line losses. See > the > > extensive analysis at www.vk1od.net > > > > Suggest you obtain the free download of EZNEC from www.eznec.com then you > > can analyze the antenna for yourself. Also there are many free programs > > available for transmission line analysis. Probably Reg (G4FGQ) has one > for > > free. > > > > Regards, > > > > Frank (VE6CB) > > > > > > Article: 216427 of rec.radio.amateur.antenna From: "Jerry Martes" References: <1124329472.084693.265940@g43g2000cwa.googlegroups.com> Subject: Re: Indoor AM Radio Extension Message-ID: Date: Thu, 18 Aug 2005 05:50:36 GMT "ECJ" wrote in message news:1124329472.084693.265940@g43g2000cwa.googlegroups.com... > My radio is in the middle of a building out in the country and I can't > seem to pick up am radio. To solve this problem I tried using speaker > wire to extend it approximately 25 feet to the window in the office > next door reconnecting it to the loop antenna that came with the radio. > I had no luck. Is speaker wire an effective way to extend an AM > antenna? If so what would be the best way to get better results. I > thought maybe tinning the end of the speaker cable that goes into the > radio , as well as soldering the speaker wire directly to the am > antenna instead of just wrapping it might help. Any suggestions are > appreciated. > > ECJ ECJ The 25 feet of speaker wire has become a capacitor across the loop that you re-located. That detunes the loop and produces a low impedance shunt across the front end of the receiver. If you are interested in one particular station, it is practical to build/buy a tuned loop AM antenna. Google will guide you to a few practical designs of AM loop antennas. Jerry Article: 216428 of rec.radio.amateur.antenna From: Stephen Parry Subject: Non-techie asks for help................ Date: Thu, 18 Aug 2005 11:04:06 +0100 Message-ID: <24m8g110uk3mj99burij3c18d8oe7eig5t@4ax.com> Hi folks, first let me apologise for not lurking, or even reading a FAQ (I did look and did not find). I know that radio amateurs are a helpful and friendly bunch, so here goes. >From the UK, for historical reasons, the BBC broadcasts programmes on Long wave, specifically 1500 metres (198 Khz???). I drive a truck on the continent of Europe, and would love to listen to this service whilst on the road (for the cricket!). I know that the signal is there, and of sufficient strength, as I can receive it OUTSIDE the truck on an ancient "portable" Inside the steel box (cab) however, too much noise/too little signal to be useful. The fitted radio has LW, but again cannot be used for the noise. Could anyone please point me to some answers to the following: Antennae: Could I build (buy) some kind of antenna specifically to receive this emission? (My old radio has a socket labelled "AM antenna"). Could I build a receiver tuned only to this freq., with no need for a speaker (run the sound in at headphone type power) that I could hang/bolt outside the truck (on the roof?), with its own battery and aerial? If so could someone point me to a diagram of such a beastie? Article: 216429 of rec.radio.amateur.antenna From: "J. Mc Laughlin" Subject: Re: Non-techie asks for help................ Date: Thu, 18 Aug 2005 07:59:22 -0400 Message-ID: <11g8tur9cdvb6d7@corp.supernews.com> References: <24m8g110uk3mj99burij3c18d8oe7eig5t@4ax.com> Dear Mr. Stephen Parry: It is possible that the truck (it is one truck?) produces too much noise at 198 kHz. An important test is to note if your portable radio tuned to 198 kHz receives a satisfactory signal-to-noise ratio when the truck is running all of its equipment. Try placing the portable radio next to the truck in places where one might attach an antenna. The fitted radio, which has LW, must have an outside antenna. Is that antenna in good condition? Your solution might be to reduce the noise produced by the truck. Antennas for LW suitable for mounting on a truck do exist, however they will not help if they receive too much noise. Let the group know the results of your testing. Tell us more about the truck. Regards, Mac -- J. Mc Laughlin; Michigan U.S.A. Home: JCM@Power-Net.Net "Stephen Parry" wrote in message news:24m8g110uk3mj99burij3c18d8oe7eig5t@4ax.com... > Hi folks, first let me apologise for not lurking, or even reading a > FAQ (I did look and did not find). I know that radio amateurs are a > helpful and friendly bunch, so here goes. > From the UK, for historical reasons, the BBC broadcasts programmes on > Long wave, specifically 1500 metres (198 Khz???). I drive a truck on > the continent of Europe, and would love to listen to this service > whilst on the road (for the cricket!). I know that the signal is > there, and of sufficient strength, as I can receive it OUTSIDE the > truck on an ancient "portable" Inside the steel box (cab) however, too > much noise/too little signal to be useful. The fitted radio has LW, > but again cannot be used for the noise. Could anyone please point me > to some answers to the following: > Antennae: Could I build (buy) some kind of antenna specifically to > receive this emission? > (My old radio has a socket labelled "AM antenna"). > Could I build a receiver tuned only to this freq., with no need for a > speaker (run the sound in at headphone type power) that I could > hang/bolt outside the truck (on the roof?), with its own battery and > aerial? If so could someone point me to a diagram of such a beastie? Article: 216430 of rec.radio.amateur.antenna From: "Jim Leder" References: Subject: Re: G5RV in horizontal L Date: Thu, 18 Aug 2005 08:13:52 -0400 Message-ID: A G5RV is really an inefficient collinear antenna, so it needs to be a flatop, not a Vee or L. Model it and you will see it is a 'long' (on 20 meters) Extended Double Zepp. The extra length improves the pattern into multiple lobes at the cost of some gain. A true EDZ has more gain, but only one very narrow broadside lobe off each side. The G5RV has 3 lobes off each side. "W5GT" wrote in message news:Q3UMe.52881$vb3.29097@fe07.lga... > I've had poor luck even using the G5RV as an inverter V. > > Dave - W5GT > > "Frank" wrote in message > news:iXIMe.184795$9A2.66584@edtnps89... >> "News Xtra" wrote in message >> news:LetMe.3398$iM2.312159@news.xtra.co.nz... >> > Guy. My best option is to install a G5VR but having one half bend back > 90 >> > degrees horizontally so that when you look down from the top it is L >> > shaped. >> > My question is, will this degrade performance very much and in what >> > way. >> > Many thanks and regards, >> > John ZL2TTM >> >> Need more information: How high is the antenna, what type of >> transmission >> line do you plan on using, and what frequencies will it be used on? >> >> Bending the antenna will reduce the real part of the input impedance, >> thus >> increasing transmission line losses. It will also tend to increase its >> directivity in the direction of the "vee". >> >> The G5RV antenna tends to exhibit higher transmission line losses. See > the >> extensive analysis at www.vk1od.net >> >> Suggest you obtain the free download of EZNEC from www.eznec.com then you >> can analyze the antenna for yourself. Also there are many free programs >> available for transmission line analysis. Probably Reg (G4FGQ) has one > for >> free. >> >> Regards, >> >> Frank (VE6CB) >> >> > > Article: 216431 of rec.radio.amateur.antenna Subject: Re: Non-techie asks for help................ From: Cecil Moore Date: Thu, 18 Aug 2005 10:16:30 -0500 Message-ID: <1124378346_4033@spool6-east.superfeed.net> References: <24m8g110uk3mj99burij3c18d8oe7eig5t@4ax.com> Stephen Parry wrote: > Inside the steel box (cab) however, too > much noise/too little signal to be useful. Is the noise coming out of the radio speaker or is it the physical noise level that is the problem? -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- Article: 216432 of rec.radio.amateur.antenna Subject: Re: G5RV in horizontal L From: Cecil Moore Date: Thu, 18 Aug 2005 10:33:56 -0500 Message-ID: <1124379392_4049@spool6-east.superfeed.net> References: Jim Leder wrote: > A G5RV is really an inefficient collinear antenna, so it needs to be a > flatop, not a Vee or L. Model it and you will see it is a 'long' (on 20 > meters) Extended Double Zepp. Jim, your statement is a little confusing. I know you mean that the G5RV is 1/4WL too long to be called an Extended Double Zepp on 20m. An EDZ is a single frequency antenna. The 102' G5RV is an EDZ on 11.5 MHz. EDZ length = 1170/F. And, you're right, G5RV's perform better as a flat-top. My modified G5RV performs as well as my 130' doublet fed with ladder- line, given the slightly different radiation patterns. I vary the length of the G5RV series matching section as follows: 3.8 MHz 23 ft., 7.2 MHz 35 ft., 10.125 MHz 20 ft., 14.2 Mhz 29 ft., 18.14 Mhz 36 ft., 21.3 MHz 27 ft., 24.95 MHz 29 ft., 28.4 Mhz 22.5 ft. -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- Article: 216433 of rec.radio.amateur.antenna From: John Smith Subject: Re: Popular Misconceptions. Message-ID: References: <430276ea.5980038@news.crosslink.net> <11g4vq9bsmds713@corp.supernews.com> <1124312305_2789@spool6-east.superfeed.net> Date: Thu, 18 Aug 2005 07:57:12 -0700 Ham op: You suppose I am going to end up wishing that, and all too soon? As long as I was wishing I was younger, I was really concentrating on 21! There was something about the girls back then I liked... John On Thu, 18 Aug 2005 07:31:21 -0400, Ham op wrote: > Wouldn't I just love to see the 50s again !~!!!!!!!! > > John Smith wrote: >> Cecil: >> >> OMG! You mean this is a popularity contest? >> >> Darn, I must be in the wrong building... yanno, the "50's" are a hard >> time. The youngsters don't wanna hang with ya, and the oldsters move away >> from ya too... only hope, more 50'ies types! >> >> John >> >> On Wed, 17 Aug 2005 15:55:48 -0500, Cecil Moore wrote: >> >> >>>John Smith wrote: >>> >>>>The apache american Indians measured their greatness in the greatness of >>>>their enemies, may you be fortunate enough to secure BIG ONES! >>> >>>Since you were the first to be "ploinked", you can be >>>president of the club. :-) >> >> Article: 216434 of rec.radio.amateur.antenna From: richardharrison@webtv.net (Richard Harrison) Subject: Re: Non-techie asks for help................ Date: Thu, 18 Aug 2005 10:54:21 -0500 Message-ID: <1850-4304AF2D-210@storefull-3257.bay.webtv.net> References: <11g8tur9cdvb6d7@corp.supernews.com> Stephen Parry wrote: "I drive a truck on the continent of Europe, and would love to listen to this service on the road for cricket." The Blau Punkt in my Karman Ghia got such signals all over the continent, and I`m just one of millions. Mr Parry did not say if his truck is Diesel powered as most European trucks are. If so, he is free of his own ignition noise, usually the hardest to suppress. He still may have alternator whine (perhaps a bad diode) and he may have static discharges from things which rotate. Some are under the hood, and their radiation should be kept under the hood by the metal surrounding them. All such metal pieces should be bonded together to keep the trap they form closed. All conductors coming through or under the firewall should be well grounded or bypassed with capacitors at the firewall. The exhausr pipe may need bonding here also. Maybe there is a gasoline powered rerfrigeration compressor generating ignition noise. Standard resistance wires, capacitors, and bondibg should silence that. Springs can be used in wheel hubs to ground out static. All the metal parts of the truck may have to be bonded together. My Blau Punkt was equipped with a good sized choke coil in its battery lead. It also had an internal "spark-plate" capacitor, and these rid the power source of radio noise. The telescoping antenna (about 50 years ago) could be extended to about 100 inches, which made the Karman Ghia quite a sight, but it worked. The antenna cable was the standard high-impedance small inner-wire coaxial type. This must be intact and perfect to keep the signal on track and the noise out. Though German, it used Motorola connectors. Radio frequencies decline very rapidly near their source. This is your friend when the source causes interference. Keep the antenna away from and shielded from sources of interferebce. In 1935, Alfred A, Ghirardi (E.E.) wrote: "---an aerial must be installed in (or on) the roof, under the running boards or chassis of the car, or in some other locations. ---Considerable attention must be given to the ignition and other electrical wiring of the car in order to eliminate all electrical interference which it produces in the receiver." Noise problems are more often caused by the vehicle than by the receiver but some receivers may not be shielded and filtered well enough. If the truck cab has its pieces bonded together and all pass-through conductors are well bonded or bypassed, it should be electrically quiet. You should be able to use a portable radio in there with proper placement or an outside antenna. Ghirardi devotes an entire chapter to automobile radio installation in "Modern Radio Servicing". Car radios are hot in the summer months while home radios are not. Best regards, Richard Harrison, KB5WZI Article: 216435 of rec.radio.amateur.antenna From: "Fred W4JLE" References: <430276ea.5980038@news.crosslink.net> <11g4vq9bsmds713@corp.supernews.com> <1124312305_2789@spool6-east.superfeed.net> Subject: Re: Popular Misconceptions. Date: Thu, 18 Aug 2005 12:25:59 -0400 Message-ID: <343a0$4304b6cf$97d55936$11332@ALLTEL.NET> At least in the day, women looked like women with hips and soft curves. Today the "ideal" woman looks like a young boy, no shape and a hard body... Yuk! And to think it all started with Twiggy. "John Smith" wrote in message news:pan.2005.08.18.14.57.10.881579@gmail.com... > Ham op: > > You suppose I am going to end up wishing that, and all too soon? > > As long as I was wishing I was younger, I was really concentrating on 21! > There was something about the girls back then I liked... Article: 216436 of rec.radio.amateur.antenna From: John Smith Subject: Re: Popular Misconceptions. Message-ID: References: <430276ea.5980038@news.crosslink.net> <11g4vq9bsmds713@corp.supernews.com> <1124312305_2789@spool6-east.superfeed.net> <343a0$4304b6cf$97d55936$11332@ALLTEL.NET> Date: Thu, 18 Aug 2005 09:34:52 -0700 Fred: You bring a tear of remorse over past times to my eye. Remember "Laugh-In" with Dan and Dick, Artie, Goldie, Ruth? John On Thu, 18 Aug 2005 12:25:59 -0400, Fred W4JLE wrote: > At least in the day, women looked like women with hips and soft curves. > Today the "ideal" woman looks like a young boy, no shape and a hard body... > Yuk! > > And to think it all started with Twiggy. > > "John Smith" wrote in message > news:pan.2005.08.18.14.57.10.881579@gmail.com... >> Ham op: >> >> You suppose I am going to end up wishing that, and all too soon? >> >> As long as I was wishing I was younger, I was really concentrating on 21! >> There was something about the girls back then I liked... Article: 216437 of rec.radio.amateur.antenna From: "Fred W4JLE" References: <24m8g110uk3mj99burij3c18d8oe7eig5t@4ax.com> Subject: Re: Non-techie asks for help................ Date: Thu, 18 Aug 2005 12:35:38 -0400 Message-ID: <6eacd$4304b913$97d55936$11756@ALLTEL.NET> One problem you might look at aside from all the other great suggestions is to look at how your radio voltage is derived. Most trucks are 24 volt and the radios 12 volt. Are you tapping at the junction of the two twelve volt batteries or does your truck use a 24 to 12 volt converter? These are usually really noisy >from an electrical standpoint. "Stephen Parry" wrote in message news:24m8g110uk3mj99burij3c18d8oe7eig5t@4ax.com... > Hi folks, first let me apologise for not lurking, or even reading a > FAQ (I did look and did not find). I know that radio amateurs are a > helpful and friendly bunch, so here goes. > From the UK, for historical reasons, the BBC broadcasts programmes on > Long wave, specifically 1500 metres (198 Khz???). I drive a truck on > the continent of Europe, and would love to listen to this service > whilst on the road (for the cricket!). I know that the signal is > there, and of sufficient strength, as I can receive it OUTSIDE the > truck on an ancient "portable" Inside the steel box (cab) however, too > much noise/too little signal to be useful. The fitted radio has LW, > but again cannot be used for the noise. Could anyone please point me > to some answers to the following: > Antennae: Could I build (buy) some kind of antenna specifically to > receive this emission? > (My old radio has a socket labelled "AM antenna"). > Could I build a receiver tuned only to this freq., with no need for a > speaker (run the sound in at headphone type power) that I could > hang/bolt outside the truck (on the roof?), with its own battery and > aerial? If so could someone point me to a diagram of such a beastie? Article: 216438 of rec.radio.amateur.antenna From: "Fred W4JLE" References: <11g8tur9cdvb6d7@corp.supernews.com> <1850-4304AF2D-210@storefull-3257.bay.webtv.net> Subject: Re: Non-techie asks for help................ Date: Thu, 18 Aug 2005 12:38:44 -0400 Message-ID: <7f5a8$4304b9ce$97d55936$11891@ALLTEL.NET> Richard, can one drive far enough in Europe that the drive time would allow listening to an entire cricket match? I mean here in the states it might be possibe, say from New York to Texas etc... "Richard Harrison" wrote in message news:1850-4304AF2D-210@storefull-3257.bay.webtv.net... > Stephen Parry wrote: > "I drive a truck on the continent of Europe, and would love to listen to > this service on the road for cricket." Article: 216439 of rec.radio.amateur.antenna From: "Fred W4JLE" References: <11g8tur9cdvb6d7@corp.supernews.com> <1850-4304AF2D-210@storefull-3257.bay.webtv.net> Subject: Re: Non-techie asks for help................ Date: Thu, 18 Aug 2005 12:41:48 -0400 Message-ID: As most modern big trucks are fiberglass, the bonding is moot. "Richard Harrison" wrote in message news:1850-4304AF2D-210@storefull-3257.bay.webtv.net... > are under the hood, and their radiation should be kept under the hood by > the metal surrounding them. All such metal pieces should be bonded > together to keep the trap they form closed. > > All conductors coming through or under the firewall should be well > grounded or bypassed with capacitors at the firewall. The exhausr pipe Article: 216440 of rec.radio.amateur.antenna From: "Fred W4JLE" References: <430276ea.5980038@news.crosslink.net> <11g4vq9bsmds713@corp.supernews.com> <1124312305_2789@spool6-east.superfeed.net> <343a0$4304b6cf$97d55936$11332@ALLTEL.NET> Subject: Re: Popular Misconceptions. Date: Thu, 18 Aug 2005 12:53:37 -0400 Message-ID: <82efc$4304bd4e$97d55936$12564@ALLTEL.NET> Even worse John is what men have been turned into. Check out the "sensitive" Bounty towel guy. If he wouldn't suck a dick, surly he would hold it in his mouth until the swelling went down. Men have fallen for the bull crap that women want a sensitive guy, when they really want a dangerous guy. The little blonde girl shuns the sensitive guy she says she wants and hooks up with the dangerous ghetto crack head. "John Smith" wrote in message news:pan.2005.08.18.16.34.50.511112@gmail.com... > Fred: > > You bring a tear of remorse over past times to my eye. > > Remember "Laugh-In" with Dan and Dick, Artie, Goldie, Ruth? > > John > > On Thu, 18 Aug 2005 12:25:59 -0400, Fred W4JLE wrote: > > > At least in the day, women looked like women with hips and soft curves. > > Today the "ideal" woman looks like a young boy, no shape and a hard body... > > Yuk! > > > > And to think it all started with Twiggy. > > > > "John Smith" wrote in message > > news:pan.2005.08.18.14.57.10.881579@gmail.com... > >> Ham op: > >> > >> You suppose I am going to end up wishing that, and all too soon? > >> > >> As long as I was wishing I was younger, I was really concentrating on 21! > >> There was something about the girls back then I liked... > Article: 216441 of rec.radio.amateur.antenna From: John Smith Subject: Re: Popular Misconceptions. Message-ID: References: <430276ea.5980038@news.crosslink.net> <11g4vq9bsmds713@corp.supernews.com> <1124312305_2789@spool6-east.superfeed.net> <343a0$4304b6cf$97d55936$11332@ALLTEL.NET> <82efc$4304bd4e$97d55936$12564@ALLTEL.NET> Date: Thu, 18 Aug 2005 10:06:02 -0700 Fred: Having a "blatantly honest day" today, are we? But yes, I can agree in spirit with most of that, human psychology in a sane mind is a trip, toss in a bit of "high-strangeness" and things really get weird. John On Thu, 18 Aug 2005 12:53:37 -0400, Fred W4JLE wrote: > Even worse John is what men have been turned into. > > Check out the "sensitive" Bounty towel guy. If he wouldn't suck a dick, > surly he would hold it in his mouth until the swelling went down. > > Men have fallen for the bull crap that women want a sensitive guy, when they > really want a dangerous guy. > > The little blonde girl shuns the sensitive guy she says she wants and hooks > up with the dangerous ghetto crack head. > > "John Smith" wrote in message > news:pan.2005.08.18.16.34.50.511112@gmail.com... >> Fred: >> >> You bring a tear of remorse over past times to my eye. >> >> Remember "Laugh-In" with Dan and Dick, Artie, Goldie, Ruth? >> >> John >> >> On Thu, 18 Aug 2005 12:25:59 -0400, Fred W4JLE wrote: >> >> > At least in the day, women looked like women with hips and soft curves. >> > Today the "ideal" woman looks like a young boy, no shape and a hard > body... >> > Yuk! >> > >> > And to think it all started with Twiggy. >> > >> > "John Smith" wrote in message >> > news:pan.2005.08.18.14.57.10.881579@gmail.com... >> >> Ham op: >> >> >> >> You suppose I am going to end up wishing that, and all too soon? >> >> >> >> As long as I was wishing I was younger, I was really concentrating on > 21! >> >> There was something about the girls back then I liked... >> Article: 216442 of rec.radio.amateur.antenna Subject: Re: Popular Misconceptions. From: Cecil Moore Date: Thu, 18 Aug 2005 12:33:06 -0500 Message-ID: <1124386542_4133@spool6-east.superfeed.net> References: <430276ea.5980038@news.crosslink.net> <11g4vq9bsmds713@corp.supernews.com> <1124312305_2789@spool6-east.superfeed.net> <343a0$4304b6cf$97d55936$11332@ALLTEL.NET> Fred W4JLE wrote: > At least in the day, women looked like women with hips and soft curves. > Today the "ideal" woman looks like a young boy, no shape and a hard body... > Yuk! Hey Fred, send your discards over to my place. :-) -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! >100,000 Newsgroups ---= East/West-Coast Server Farms - Total Privacy via Encryption =--- Article: 216443 of rec.radio.amateur.antenna From: richardharrison@webtv.net (Richard Harrison) Subject: Re: Non-techie asks for help................ Date: Thu, 18 Aug 2005 12:51:39 -0500 Message-ID: <884-4304CAAB-67@storefull-3258.bay.webtv.net> References: Fred, W4JLE raised a number of intresting points. DC to DC converters are switching types to get high efficiency and this can generate many harmonics. If not suppressed, as many converters are, this causes much noise. The solution is to use the proper converter if required. Yes England can be well received all over the European continent. The transmissions are powerful and decline only about 6 dB every time distance from the transmitter is doubled after the first 1.5 km from the 200 KHz transmitter. The questioner referred to his truck cab as a "steel box". I accept his word. However, I once had a Corvette with a fiberglass body. The ignition system came well shielded and bypassed. The underside of the hood was equipped with a fibergaass blanket for heat control and the blanket was faced with aluminum foil for radio frequency control. It was grounded. Trucks must use something similar if they have spark ignition systems. The Corvette`s Delco radio only had medium wave AM and VHF FM reception. Both were satisfactorily quiet. Screams during acceleration and sudden stops were the only disconcerting noises. Best regatrds, Richard Harrison, KB5WZI Article: 216444 of rec.radio.amateur.antenna From: "W5GT" References: Subject: Re: G5RV in horizontal L Message-ID: Date: Thu, 18 Aug 2005 13:04:44 -0500 Having said that it's a poor inverted V, it does a great job as a flat top. I've worked quite a bit of DX on 75 and 40 with my G5RV at 20'. Dave - W5GT "W5GT" wrote in message news:Q3UMe.52881$vb3.29097@fe07.lga... > I've had poor luck even using the G5RV as an inverted V. > > Dave - W5GT > > "Frank" wrote in message > news:iXIMe.184795$9A2.66584@edtnps89... > > "News Xtra" wrote in message > > news:LetMe.3398$iM2.312159@news.xtra.co.nz... > > > Guy. My best option is to install a G5VR but having one half bend back > 90 > > > degrees horizontally so that when you look down from the top it is L > > > shaped. > > > My question is, will this degrade performance very much and in what way. > > > Many thanks and regards, > > > John ZL2TTM > > > > Need more information: How high is the antenna, what type of transmission > > line do you plan on using, and what frequencies will it be used on? > > > > Bending the antenna will reduce the real part of the input impedance, thus > > increasing transmission line losses. It will also tend to increase its > > directivity in the direction of the "vee". > > > > The G5RV antenna tends to exhibit higher transmission line losses. See > the > > extensive analysis at www.vk1od.net > > > > Suggest you obtain the free download of EZNEC from www.eznec.com then you > > can analyze the antenna for yourself. Also there are many free programs > > available for transmission line analysis. Probably Reg (G4FGQ) has one > for > > free. > > > > Regards, > > > > Frank (VE6CB) > > > > > > Article: 216445 of rec.radio.amateur.antenna From: Walter Maxwell Subject: Re: Non-techie asks for help................ Message-ID: <5vk9g11k0vbutevc4mn4fqa4ak08b9iagi@4ax.com> References: <884-4304CAAB-67@storefull-3258.bay.webtv.net> Date: Thu, 18 Aug 2005 14:33:03 -0400 On Thu, 18 Aug 2005 12:51:39 -0500, richardharrison@webtv.net (Richard Harrison) wrote: >Fred, W4JLE raised a number of intresting points. DC to DC converters >The questioner referred to his truck cab as a "steel box". I accept his >word. However, I once had a Corvette with a fiberglass body. The >ignition system came well shielded and bypassed. The underside of the >hood was equipped with a fibergaass blanket for heat control and the >blanket was faced with aluminum foil for radio frequency control. It was >grounded. Trucks must use something similar if they have spark ignition >systems. > >The Corvette`s Delco radio only had medium wave AM and VHF FM reception. >Both were satisfactorily quiet. Screams during acceleration and sudden >stops were the only disconcerting noises. > >Best regatrds, Richard Harrison, KB5WZI Richard, I don't know anyone working in the technical area of radio transmission ever earning enough to enjoy a Corvette. Did you have a large inheritance? Walt, W2DU Article: 216446 of rec.radio.amateur.antenna From: richardharrison@webtv.net (Richard Harrison) Subject: Re: Non-techie asks for help................ Date: Thu, 18 Aug 2005 14:22:54 -0500 Message-ID: <16027-4304E00E-117@storefull-3251.bay.webtv.net> References: <5vk9g11k0vbutevc4mn4fqa4ak08b9iagi@4ax.com> Walter, W2DU wrote: "Did you have a large inheritance?" No big windfall. I worked in Europe on a good salery for years. After the first two, all I had to do was stay away rrom the U.S.A. and my salery was tax-free. Then I investerd for the long term in some unspectacular stocks with rising earmimgs and stock ptices. For fun I bought some hot short term stocks too. I won some and I lost some, but you only have to make one killing to pay for the losses. Diversification is the key to staying in the game. Timing the market is highly unlikely. So is reliable information unless it is first-hand. I could tell you that Motorola is cash-rich and is buying back anout 10% of its stock, but the Galvins are gone (except for Christopher) so the stock is questionable. The management must think the stock is a good investment or they shouldn`t be buying it. Who knows? Best regards, Richard Harrison, KB5WZI Article: 216447 of rec.radio.amateur.antenna From: Walter Maxwell Subject: Re: Non-techie asks for help................ Message-ID: <1v1ag1d5pfb3h23ijk237j924j8l6r8adi@4ax.com> References: <5vk9g11k0vbutevc4mn4fqa4ak08b9iagi@4ax.com> <16027-4304E00E-117@storefull-3251.bay.webtv.net> Date: Thu, 18 Aug 2005 18:13:31 -0400 On Thu, 18 Aug 2005 14:22:54 -0500, richardharrison@webtv.net (Richard Harrison) wrote: >Walter, W2DU wrote: >"Did you have a large inheritance?" > >No big windfall. I worked in Europe on a good salery for years. After >the first two, all I had to do was stay away rrom the U.S.A. and my >salery was tax-free. Then I investerd for the long term in some >unspectacular stocks with rising earmimgs and stock ptices. For fun I >bought some hot short term stocks too. I won some and I lost some, but >you only have to make one killing to pay for the losses. Diversification >is the key to staying in the game. Timing the market is highly unlikely. >So is reliable information unless it is first-hand. > >I could tell you that Motorola is cash-rich and is buying back anout 10% >of its stock, but the Galvins are gone (except for Christopher) so the >stock is questionable. The management must think the stock is a good >investment or they shouldn`t be buying it. Who knows? > >Best regards, Richard Harrison, KB5WZI Just kidding, Richard, but I see you have done very well. Walt Article: 216448 of rec.radio.amateur.antenna From: "Giordano de Marchi -Station Dance" Subject: indirizzo sito Message-ID: Date: Thu, 18 Aug 2005 22:56:47 GMT provvisoriamente il sito ufficiale dell'UNITA ' OPERATIVA RADIOEMERGENZE BERGAMO PROTEZIONE CIVILE è stato spostato su http://www.uor.altervista.org grazie per l'attenzione -- GIORDANO MEZZA Presidente- Resp.le operativo Unità Operativa Radioemergenze U.O.R. telecomunicazioni in emergenza tel h24 333.7178064 fax 035.592626 Article: 216449 of rec.radio.amateur.antenna From: microwaves@blueyonder.co.uk (Peter) Subject: Re: Popular Misconceptions. Message-ID: <43051245.176924233@news.blueyonder.co.uk> References: <430276ea.5980038@news.crosslink.net> <11g4vq9bsmds713@corp.supernews.com> <1124312305_2789@spool6-east.superfeed.net> <343a0$4304b6cf$97d55936$11332@ALLTEL.NET> Date: Thu, 18 Aug 2005 22:58:15 GMT On Thu, 18 Aug 2005 12:25:59 -0400, "Fred W4JLE" wrote: >Today the "ideal" woman looks like a young boy, no shape and a hard body... >Yuk! Not seem many of them outside California when I've visited the States! Everywhere else they mostly look HUGE! Peter, G3PHO Article: 216450 of rec.radio.amateur.antenna From: Allodoxaphobia Subject: Re: indirizzo sito Date: 18 Aug 2005 23:29:47 GMT Message-ID: References: On Thu, 18 Aug 2005 22:56:47 GMT, Giordano de Marchi -Station Dance wrote: > provvisoriamente il sito ufficiale > dell'UNITA ' OPERATIVA RADIOEMERGENZE BERGAMO PROTEZIONE CIVILE > è stato spostato su http://www.uor.altervista.org ^^^^^^^^^^ "al-ter vis-ta"? Is that a New York search engine? Article: 216451 of rec.radio.amateur.antenna From: John Smith Subject: Re: Popular Misconceptions. Message-ID: References: <430276ea.5980038@news.crosslink.net> <11g4vq9bsmds713@corp.supernews.com> <1124312305_2789@spool6-east.superfeed.net> <343a0$4304b6cf$97d55936$11332@ALLTEL.NET> <43051245.176924233@news.blueyonder.co.uk> Date: Thu, 18 Aug 2005 16:19:25 -0700 Peter: It is a plague of biblical proportions! You should pity us! Fat women are falling from the sky and littering the USA (men too!), it is horrible! (and, it affects California too...) We gnash out teeth and scream in agony, and petition the gods with the cry, "WHAT DID WE DO TO DESERVE THIS ABOMINATION AND FOUL PUNISHMENT?"--no relief is granted us from our suffering... John On Thu, 18 Aug 2005 22:58:15 +0000, Peter wrote: > On Thu, 18 Aug 2005 12:25:59 -0400, "Fred W4JLE" > wrote: > >>Today the "ideal" woman looks like a young boy, no shape and a hard body... >>Yuk! > > > Not seem many of them outside California when I've visited the States! > > Everywhere else they mostly look HUGE! > > Peter, G3PHO Article: 216452 of rec.radio.amateur.antenna From: "Fred W4JLE" References: <430276ea.5980038@news.crosslink.net> <11g4vq9bsmds713@corp.supernews.com> <1124312305_2789@spool6-east.superfeed.net> <343a0$4304b6cf$97d55936$11332@ALLTEL.NET> <43051245.176924233@news.blueyonder.co.uk> Subject: Re: Popular Misconceptions. Date: Thu, 18 Aug 2005 21:11:51 -0400 Message-ID: <12e11$4305323b$97d55936$32761@ALLTEL.NET> Hey John! There not fat, just fluffy. Us rednecks like em with some meat on their bones. You can have all the Barbi Doll clones that infest the land of fruits and nuts. "John Smith" wrote in message news:pan.2005.08.18.23.18.26.6 31041@gmail.com... > Peter: > > It is a plague of biblical proportions! You should pity us! > > Fat women are falling from the sky and littering the USA (men too!), it is > horrible! (and, it affects California too...) > > We gnash out teeth and scream in agony, and petition the gods with the > cry, "WHAT DID WE DO TO DESERVE THIS ABOMINATION AND FOUL PUNISHMENT?"--no > relief is granted us from our suffering... > > John > > On Thu, 18 Aug 2005 22:58:15 +0000, Peter wrote: > > > On Thu, 18 Aug 2005 12:25:59 -0400, "Fred W4JLE" > > wrote: > > > >>Today the "ideal" woman looks like a young boy, no shape and a hard body... > >>Yuk! > > > > > > Not seem many of them outside California when I've visited the States! > > > > Everywhere else they mostly look HUGE! > > > > Peter, G3PHO > Article: 216453 of rec.radio.amateur.antenna From: "Tom Donaly" Subject: Re: Popular Misconceptions. References: <430276ea.5980038@news.crosslink.net> <11g4vq9bsmds713@corp.supernews.com> <1124312305_2789@spool6-east.superfeed.net> <343a0$4304b6cf$97d55936$11332@ALLTEL.NET> <43051245.176924233@news.blueyonder.co.uk> Message-ID: Date: Fri, 19 Aug 2005 01:16:37 GMT Peter wrote: > On Thu, 18 Aug 2005 12:25:59 -0400, "Fred W4JLE" > wrote: > > >>Today the "ideal" woman looks like a young boy, no shape and a hard body... >>Yuk! > > > > Not seem many of them outside California when I've visited the States! > > Everywhere else they mostly look HUGE! > > Peter, G3PHO California women _are_ far better looking than the rest. It may be because many of them refrain from eating too much. Most of them are superior in any event. 73, Tom Donaly, KA6RUH Article: 216454 of rec.radio.amateur.antenna From: richardharrison@webtv.net (Richard Harrison) Subject: Re: Popular Misconceptions. Date: Thu, 18 Aug 2005 20:29:53 -0500 Message-ID: <5062-43053611-340@storefull-3253.bay.webtv.net> References: <1124386542_4133@spool6-east.superfeed.net> Fred, W4JLE wrote: "Today the "ideal" woman looks like a young boy, no shape and a hard body." Beauty is in the eye of the beholder. The skinny woman reminds me of Louis Prima`s selection from Capitol Records T836, "Call of the Wildest". The selection is "Closest to the Bone". We had Louis Prima V-Disks aboard our ship during WW-2. They were about the most popular of all our disks. With today`s "correctness" Louis would be relegated to V-Disks or Vegas. He was a huge hit in both places. In Louie`s lyric, "the nearer the bone, the sweeter the meat. When his sweetie drinks a glass of wine, she looks just like a thermometer", and other crazy stuff. Louis Prima was one of a kind. We could use some of his fun and musicianship today. His Cornet would compete with Louis Armstrong or Harry James. His orchestra could compete too. Sam Butera`s Saxophone was competition for Tex Beneke. Too bad the great music and entertainers are almost gone. Best regards, Richard Harrison, KB5WZI Article: 216455 of rec.radio.amateur.antenna From: "Fred W4JLE" References: <1124386542_4133@spool6-east.superfeed.net> <5062-43053611-340@storefull-3253.bay.webtv.net> Subject: Re: Popular Misconceptions. Date: Thu, 18 Aug 2005 22:03:51 -0400 Message-ID: <2c48c$43053e13$97d55936$4427@ALLTEL.NET> Back in the day, when I was a young navy officer, I had my share of liasions with the ladies. One thing I noticed was that those women who deny themselves the pleasure of food, denied themselves in other pleasures as well. It evolved in to a hard fast rule that if she ordered "only a salad, I am on a diet" she was taken home right after dinner and removed from future consideration. The women that were the most enjoyable in all aspects can be characterized by Annette Funachello. I actually got to meet her once as I used to go out with Candy Johnson. You might remember her as the short haired blonde dancer with the fringed outfits in all the beach movies. As the song goes "Those were the days my friend" "Richard Harrison" wrote in message news:5062-43053611-340@storefull-3253.bay.webtv.net... > Beauty is in the eye of the beholder. Article: 216456 of rec.radio.amateur.antenna Message-ID: <43054719.6DD3A76D@shaw.ca> From: Irv Finkleman Subject: Re: indirizzo sito References: Date: Fri, 19 Aug 2005 02:41:47 GMT Allodoxaphobia wrote: > > On Thu, 18 Aug 2005 22:56:47 GMT, Giordano de Marchi -Station Dance wrote: > > provvisoriamente il sito ufficiale > > dell'UNITA ' OPERATIVA RADIOEMERGENZE BERGAMO PROTEZIONE CIVILE > > è stato spostato su http://www.uor.altervista.org > ^^^^^^^^^^ > "al-ter vis-ta"? Is that a New York search engine? Check it out -- it's legitimate! Irv VE6BP -- -------------------------------------- Diagnosed Type II Diabetes March 5 2001 Beating it with diet and exercise! 297/215/210 (to be revised lower) 58"/43"(!)/44" (already lower too!) -------------------------------------- Visit my HomePage at http://members.shaw.ca/finkirv/index.html Visit my Baby Sofia website at http://members.shaw.ca/finkirv4/index.htm Visit my OLDTIMERS website at http://members.shaw.ca/finkirv5/index.htm -------------------- Irv Finkleman, Grampa/Ex-Navy/Old Fart/Ham Radio VE6BP Calgary, Alberta, Canada Article: 216457 of rec.radio.amateur.antenna Date: Thu, 18 Aug 2005 21:48:31 -0500 From: Tom Ring Subject: Re: Popular Misconceptions. References: <1124386542_4133@spool6-east.superfeed.net> <5062-43053611-340@storefull-3253.bay.webtv.net> Message-ID: <43054880$0$22210$39cecf19@news.twtelecom.net> Richard Harrison wrote: > Beauty is in the eye of the beholder. > > The skinny woman reminds me of Louis Prima`s selection from Capitol > Records T836, "Call of the Wildest". The selection is "Closest to the > Bone". We had Louis Prima V-Disks aboard our ship during WW-2. They were > about the most popular of all our disks. With today`s "correctness" > Louis would be relegated to V-Disks or Vegas. He was a huge hit in both > places. > > In Louie`s lyric, "the nearer the bone, the sweeter the meat. When his > sweetie drinks a glass of wine, she looks just like a thermometer", and > other crazy stuff. Louis Prima was one of a kind. We could use some of > his fun and musicianship today. His Cornet would compete with Louis > Armstrong or Harry James. His orchestra could compete too. Sam Butera`s > Saxophone was competition for Tex Beneke. Too bad the great music and > entertainers are almost gone. > > Best regards, Richard Harrison, KB5WZI Angelina...... tom K0TAR Article: 216458 of rec.radio.amateur.antenna Date: Thu, 18 Aug 2005 21:58:59 -0500 From: Tom Ring Subject: Re: Popular Misconceptions. References: <430276ea.5980038@news.crosslink.net> <11g4vq9bsmds713@corp.supernews.com> <1124312305_2789@spool6-east.superfeed.net> <343a0$4304b6cf$97d55936$11332@ALLTEL.NET> <43051245.176924233@news.blueyonder.co.uk> Message-ID: <43054af4$0$32201$39cecf19@news.twtelecom.net> Tom Donaly wrote: > California women _are_ far better looking than the rest. It may be > because many of them refrain from eating too much. Most of them are > superior in any event. > 73, > Tom Donaly, KA6RUH Except for the serious problem of the nutball factor out there, I agree. I lived in Anaheim for 7 months while working on a Honeywell/Ericsson project in the late 80s, and I wouldn't take one of those women without a 110% money back guarantee. tom K0TAR Article: 216459 of rec.radio.amateur.antenna Date: Thu, 18 Aug 2005 22:20:21 -0500 From: Tom Ring Subject: Re: Popular Misconceptions. References: <430276ea.5980038@news.crosslink.net> <11g4vq9bsmds713@corp.supernews.com> <1124312305_2789@spool6-east.superfeed.net> <343a0$4304b6cf$97d55936$11332@ALLTEL.NET> <43051245.176924233@news.blueyonder.co.uk> <43054af4$0$32201$39cecf19@news.twtelecom.net> Message-ID: <43054ff6$0$32204$39cecf19@news.twtelecom.net> Tom Ring wrote: > Except for the serious problem of the nutball factor out there, I agree. > I lived in Anaheim for 7 months while working on a Honeywell/Ericsson > project in the late 80s, and I wouldn't take one of those women without > a 110% money back guarantee. And to be fair, the men are very screwed up, too. tom K0TAR Article: 216460 of rec.radio.amateur.antenna From: "Crazy George" References: <884-4304CAAB-67@storefull-3258.bay.webtv.net> Subject: Re: Non-techie asks for help................ Date: Thu, 18 Aug 2005 22:29:18 -0500 Message-ID: <43055787_4@news1.prserv.net> Richard: You should be advised that modern semiconductor driven diesel injectors are noisier than Kettering ignition systems. DIN and the rest of the European regulatory bunch have really clamped down on spark fired ignition noise, but apparently Diesels have escaped their attention. -- Crazy George The attglobal.net address is a SPAM trap. Please change that part to: attbiz properly formatted. "Richard Harrison" wrote in message news:884-4304CAAB-67@storefull-3258.bay.webtv.net... > Fred, W4JLE raised a number of intresting points. DC to DC converters > are switching types to get high efficiency and this can generate many > harmonics. If not suppressed, as many converters are, this causes much > noise. The solution is to use the proper converter if required. > > Yes England can be well received all over the European continent. The > transmissions are powerful and decline only about 6 dB every time > distance from the transmitter is doubled after the first 1.5 km from the > 200 KHz transmitter. > > The questioner referred to his truck cab as a "steel box". I accept his > word. However, I once had a Corvette with a fiberglass body. The > ignition system came well shielded and bypassed. The underside of the > hood was equipped with a fibergaass blanket for heat control and the > blanket was faced with aluminum foil for radio frequency control. It was > grounded. Trucks must use something similar if they have spark ignition > systems. > > The Corvette`s Delco radio only had medium wave AM and VHF FM reception. > Both were satisfactorily quiet. Screams during acceleration and sudden > stops were the only disconcerting noises. > > Best regatrds, Richard Harrison, KB5WZI > Article: 216461 of rec.radio.amateur.antenna From: "RST Engineering" Subject: Re: Popular Misconceptions. Date: Thu, 18 Aug 2005 22:08:10 -0700 Message-ID: <11gaqa36gpme616@corp.supernews.com> References: <430276ea.5980038@news.crosslink.net> <11g4vq9bsmds713@corp.supernews.com> <1124312305_2789@spool6-east.superfeed.net> <343a0$4304b6cf$97d55936$11332@ALLTEL.NET> <43051245.176924233@news.blueyonder.co.uk> <43054af4$0$32201$39cecf19@news.twtelecom.net> And most of them wouldn't have dated you on a $ten grand bet. Jim "Tom Ring" wrote in message news:43054af4$0$32201$39cecf19@news.twtelecom.net... >> Tom Donaly, KA6RUH > > Except for the serious problem of the nutball factor out there, I agree. I > lived in Anaheim for 7 months while working on a Honeywell/Ericsson > project in the late 80s, and I wouldn't take one of those women without a > 110% money back guarantee. > > tom > K0TAR Article: 216462 of rec.radio.amateur.antenna From: Stephen Parry Subject: Re: Non-techie asks for help................ Date: Fri, 19 Aug 2005 12:13:03 +0100 Message-ID: <3lebg15lu5ftq1m90lacu8v97t9e3n85k2@4ax.com> References: <24m8g110uk3mj99burij3c18d8oe7eig5t@4ax.com> <11g8tur9cdvb6d7@corp.supernews.com> The fitted radio, thanks to my skinflint boss is a "bare minimum" Mercedes branded unit, actually made by Becker, I believe. It is therefore a good quality, if basic, piece of kit. The antenna is I guess from the same "box" ie standard quality etc. FM reception, for instance is OK. All the truck electrics, including the radio are 24V, albeit from 2 X 12V batteries in series. The built in unit is JUST tolerable on AM when there is a really good signal ie in the UK, if the signal is at all weak (I am guessing here), other noise dominates ie a rhythmic low frequency "fart" noise, (I guess this comes from the tachograph, stupidly fitted next to the radio) A whine, related to engine revs (alternator?? fuel pump??) horrible noises whenever I pass under a bridge or anywhere near power pylons or railway lines. The portable radio (with its own batteries 8 X D size = £24.00 or approx $40.00 the set) has markedly better Rx even when just outside the cab, on the step for instance, and strangely seems not to be as badly affected by the bridges and pylons On Thu, 18 Aug 2005 07:59:22 -0400, "J. Mc Laughlin" wrote: >Dear Mr. Stephen Parry: > It is possible that the truck (it is one truck?) produces too much noise >at 198 kHz. An important test is to note if your portable radio tuned to >198 kHz receives a satisfactory signal-to-noise ratio when the truck is >running all of its equipment. Try placing the portable radio next to the >truck in places where one might attach an antenna. > > The fitted radio, which has LW, must have an outside antenna. Is that >antenna in good condition? > > Your solution might be to reduce the noise produced by the truck. >Antennas for LW suitable for mounting on a truck do exist, however they will >not help if they receive too much noise. Could describe one of these please?? > > Let the group know the results of your testing. Tell us more about the >truck. Regards, Mac Article: 216463 of rec.radio.amateur.antenna From: Stephen Parry Subject: Re: Non-techie asks for help................ Date: Fri, 19 Aug 2005 12:29:35 +0100 Message-ID: References: <11g8tur9cdvb6d7@corp.supernews.com> <1850-4304AF2D-210@storefull-3257.bay.webtv.net> On Thu, 18 Aug 2005 10:54:21 -0500, richardharrison@webtv.net (Richard Harrison) wrote: Thank-you Richard for the prompt reply, which I am afraid I understood little of (! my fault not yours) >Stephen Parry wrote: >"I drive a truck on the continent of Europe, and would love to listen to >this service on the road for cricket." > >The Blau Punkt in my Karman Ghia got such signals all over the >continent, and I`m just one of millions. > >Mr Parry did not say if his truck is Diesel powered as most European >trucks are. Yes Diesel power, so no HT coil, plugs, distributor etc >If so, he is free of his own ignition noise, usually the >hardest to suppress. Ok. > He still may have alternator whine (perhaps a bad >diode) Yes I think I do have alternator noise could you explain what I might do ? >and he may have static discharges from things which rotate. Some >are under the hood, and their radiation should be kept under the hood by >the metal surrounding them. All such metal pieces should be bonded >together to keep the trap they form closed. > >All conductors coming through or under the firewall should be well >grounded or bypassed with capacitors at the firewall. The exhausr pipe >may need bonding here also. I think we might have been divided by our common language! My truck has no "hood" as such http://www.duet-duda.mojagielda.pl/?9 >Maybe there is a gasoline powered rerfrigeration compressor generating >ignition noise. Standard resistance wires, capacitors, and bondibg >should silence that. No 'fridge >Springs can be used in wheel hubs to ground out static. I did not understand this part > >All the metal parts of the truck may have to be bonded together. Or this > >My Blau Punkt was equipped with a good sized choke coil in its battery >lead. It also had an internal "spark-plate" capacitor, and these rid the >power source of radio noise. Or this > >The telescoping antenna (about 50 years ago) could be extended to about >100 inches, which made the Karman Ghia quite a sight, but it worked. The >antenna cable was the standard high-impedance small inner-wire coaxial >type. This must be intact and perfect to keep the signal on track and >the noise out. Though German, it used Motorola connectors. > >Radio frequencies decline very rapidly near their source. This is your >friend when the source causes interference. Sorry, this too! >Keep the antenna away from >and shielded from sources of interferebce. When you say "bonding" I am guessing this means a clean earth return to battery? > >In 1935, Alfred A, Ghirardi (E.E.) wrote: >"---an aerial must be installed in (or on) the roof, under the running >boards or chassis of the car, or in some other locations. >---Considerable attention must be given to the ignition and other >electrical wiring of the car in order to eliminate all electrical >interference which it produces in the receiver." > >Noise problems are more often caused by the vehicle than by the receiver >but some receivers may not be shielded and filtered well enough. If the >truck cab has its pieces bonded together and all pass-through conductors >are well bonded or bypassed, it should be electrically quiet. You should >be able to use a portable radio in there with proper placement or an >outside antenna. > >Ghirardi devotes an entire chapter to automobile radio installation in >"Modern Radio Servicing". Car radios are hot in the summer months while >home radios are not. > >Best regards, Richard Harrison, KB5WZI Article: 216464 of rec.radio.amateur.antenna From: Stephen Parry Subject: Re: Non-techie asks for help................ Date: Fri, 19 Aug 2005 12:34:20 +0100 Message-ID: References: <11g8tur9cdvb6d7@corp.supernews.com> <1850-4304AF2D-210@storefull-3257.bay.webtv.net> <7f5a8$4304b9ce$97d55936$11891@ALLTEL.NET> London - Vienna return more than enough! On Thu, 18 Aug 2005 12:38:44 -0400, "Fred W4JLE" wrote: >Richard, can one drive far enough in Europe that the drive time would allow >listening to an entire cricket match? I mean here in the states it might be >possibe, say from New York to Texas etc... > >"Richard Harrison" wrote in message >news:1850-4304AF2D-210@storefull-3257.bay.webtv.net... >> Stephen Parry wrote: >> "I drive a truck on the continent of Europe, and would love to listen to >> this service on the road for cricket." > Article: 216465 of rec.radio.amateur.antenna From: Stephen Parry Subject: Re: Non-techie asks for help................ Date: Fri, 19 Aug 2005 12:36:35 +0100 Message-ID: References: <24m8g110uk3mj99burij3c18d8oe7eig5t@4ax.com> <1124378346_4033@spool6-east.superfeed.net> On Thu, 18 Aug 2005 10:16:30 -0500, Cecil Moore wrote: I was referring to electrical type noise >Stephen Parry wrote: >> Inside the steel box (cab) however, too >> much noise/too little signal to be useful. > >Is the noise coming out of the radio speaker or is >it the physical noise level that is the problem? Article: 216466 of rec.radio.amateur.antenna From: Stephen Parry Subject: Re: Non-techie asks for help................ Date: Fri, 19 Aug 2005 12:40:52 +0100 Message-ID: References: <24m8g110uk3mj99burij3c18d8oe7eig5t@4ax.com> <6eacd$4304b913$97d55936$11756@ALLTEL.NET> On Thu, 18 Aug 2005 12:35:38 -0400, "Fred W4JLE" wrote: Fred I think you must be Psychic! current system is all 24V, yesterday went out and paid £35.00 for a DC/DC dropper so I could fit a car radio... are you saying that this will make things worse? >One problem you might look at aside from all the other great suggestions is >to look at how your radio voltage is derived. Most trucks are 24 volt and >the radios 12 volt. > >Are you tapping at the junction of the two twelve volt batteries or does >your truck use a 24 to 12 volt converter? These are usually really noisy >from an electrical standpoint. > >"Stephen Parry" wrote in message >news:24m8g110uk3mj99burij3c18d8oe7eig5t@4ax.com... >> Hi folks, first let me apologise for not lurking, or even reading a >> FAQ (I did look and did not find). I know that radio amateurs are a >> helpful and friendly bunch, so here goes. >> From the UK, for historical reasons, the BBC broadcasts programmes on >> Long wave, specifically 1500 metres (198 Khz???). I drive a truck on >> the continent of Europe, and would love to listen to this service >> whilst on the road (for the cricket!). I know that the signal is >> there, and of sufficient strength, as I can receive it OUTSIDE the >> truck on an ancient "portable" Inside the steel box (cab) however, too >> much noise/too little signal to be useful. The fitted radio has LW, >> but again cannot be used for the noise. Could anyone please point me >> to some answers to the following: >> Antennae: Could I build (buy) some kind of antenna specifically to >> receive this emission? >> (My old radio has a socket labelled "AM antenna"). >> Could I build a receiver tuned only to this freq., with no need for a >> speaker (run the sound in at headphone type power) that I could >> hang/bolt outside the truck (on the roof?), with its own battery and >> aerial? If so could someone point me to a diagram of such a beastie? > Article: 216467 of rec.radio.amateur.antenna Date: Fri, 19 Aug 2005 07:27:53 -0500 From: Tom Ring Subject: Re: Non-techie asks for help................ References: <884-4304CAAB-67@storefull-3258.bay.webtv.net> <43055787_4@news1.prserv.net> Message-ID: <4305d04a$0$22206$39cecf19@news.twtelecom.net> Crazy George wrote: > Richard: > > You should be advised that modern semiconductor driven diesel injectors are noisier than Kettering ignition systems. > DIN and the rest of the European regulatory bunch have really clamped down on spark fired ignition noise, but apparently > Diesels have escaped their attention. > > -- > Crazy George Only too true. When mobile I can hear Mpls buses about 100 feet away over the S5 downtown noise on 20 meters. They make an interesting tone pattern that I surmise may have to do with resonances in the various lengths of the wiring harness involved. I've heard much the same from some, but not all, diesel trucks. tom K0TAR Article: 216468 of rec.radio.amateur.antenna Date: Fri, 19 Aug 2005 07:32:25 -0500 From: Tom Ring Subject: Re: Non-techie asks for help................ References: <24m8g110uk3mj99burij3c18d8oe7eig5t@4ax.com> <11g8tur9cdvb6d7@corp.supernews.com> <3lebg15lu5ftq1m90lacu8v97t9e3n85k2@4ax.com> Message-ID: <4305d159$0$32205$39cecf19@news.twtelecom.net> Stephen Parry wrote: > The fitted radio, thanks to my skinflint boss is a "bare minimum" > Mercedes branded unit, actually made by Becker, I believe. It is > therefore a good quality, if basic, piece of kit. The antenna is I > guess from the same "box" ie standard quality etc. FM reception, for > instance is OK. All the truck electrics, including the radio are 24V, > albeit from 2 X 12V batteries in series. The built in unit is JUST > tolerable on AM when there is a really good signal ie in the UK, if > the signal is at all weak (I am guessing here), other noise dominates > ie a rhythmic low frequency "fart" noise, (I guess this comes from the > tachograph, stupidly fitted next to the radio) A whine, related to > engine revs (alternator?? fuel pump??) horrible noises whenever I pass > under a bridge or anywhere near power pylons or railway lines. > I wonder if the radio has a trimmer capacitor like many of the US AM BCB radios have had over the years. You would normally have to pull the radio from the dash and inspect it to see. If it does, it may help a bit to tweak it. What is the model number of the unit? Maybe we can find an online user's manual. tom K0TAR Article: 216469 of rec.radio.amateur.antenna Subject: Re: Using 450ohm ladder line From: Cecil Moore Date: Fri, 19 Aug 2005 07:46:27 -0500 Message-ID: <1124455743_2023@spool6-east.superfeed.net> References: <1124454253.543768.193870@z14g2000cwz.googlegroups.com> Giovanni wrote: > I have the possibility to run a 450hom ladder line from the rooftop > down to the shack in the basement of the house, through an unused > chimney made of a steel pipe of about 1 foot of diameter and about 20 > feet long. The ladder-line needs to be centered in that 1 foot diameter steel pipe. Otherwise, the fields are likely to become unbalanced and losses occur. 6 inch spacing away from any conductive medium is just about right. -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! >100,000 Newsgroups ---= East/West-Coast Server Farms - Total Privacy via Encryption =--- Article: 216470 of rec.radio.amateur.antenna From: Stephen Parry Subject: Re: Non-techie asks for help................ Date: Fri, 19 Aug 2005 14:38:21 +0100 Message-ID: References: <24m8g110uk3mj99burij3c18d8oe7eig5t@4ax.com> <11g8tur9cdvb6d7@corp.supernews.com> <3lebg15lu5ftq1m90lacu8v97t9e3n85k2@4ax.com> <4305d159$0$32205$39cecf19@news.twtelecom.net> On Fri, 19 Aug 2005 07:32:25 -0500, Tom Ring wrote: Model id Mercedes-Benz badged Truckline CC25 made I think by Becker >I wonder if the radio has a trimmer capacitor like many of the US AM BCB >radios have had over the years. You would normally have to pull the >radio from the dash and inspect it to see. If it does, it may help a >bit to tweak it. > >What is the model number of the unit? Maybe we can find an online >user's manual. > >tom >K0TAR Article: 216471 of rec.radio.amateur.antenna From: richardharrison@webtv.net (Richard Harrison) Subject: Re: Non-techie asks for help................ Date: Fri, 19 Aug 2005 08:32:32 -0500 Message-ID: <2776-4305DF70-394@storefull-3256.bay.webtv.net> References: <43055787_4@news1.prserv.net> Crazy George wrote: "You should be advised that modern semiconductors driven diesel injectors are noisier than Kettering ignition systems." I didn`t have a clue. My experience is out of date. Injectors were timed by a camshaft which generated little electrical noise. Methods used to control radiation from Kettering ignition systems and their solid-state derivatives should work on fuel injection timing systems too. The plan is to keep the electrical noise within a screened enclosure and not let it out. It is hard to believe there is no DIN specification for radiation from electrically timed fuel injectors. In the old days ther was a specification for about everything. Best regards, Richard Harrison, KB5WZI Article: 216472 of rec.radio.amateur.antenna Date: Fri, 19 Aug 2005 15:02:42 +0100 From: cut this out <""lionelcarter\"@(cut this out)lineone.net"> Subject: Re: Popular Misconceptions. References: Message-ID: <4305e599_1@mk-nntp-1.news.uk.worldonline.com> Yes, I can imagine it. But I don't believe it. Article: 216473 of rec.radio.amateur.antenna From: "Reg Edwards" Subject: Re: Using 450ohm ladder line Date: Fri, 19 Aug 2005 14:22:34 +0000 (UTC) Message-ID: References: <1124454253.543768.193870@z14g2000cwz.googlegroups.com> <1124455743_2023@spool6-east.superfeed.net> "Cecil Moore" wrote in message news:1124455743_2023@spool6-east.superfeed.net... > Giovanni wrote: > > I have the possibility to run a 450hom ladder line from the rooftop > > down to the shack in the basement of the house, through an unused > > chimney made of a steel pipe of about 1 foot of diameter and about 20 > > feet long. > > The ladder-line needs to be centered in that 1 foot diameter > steel pipe. Otherwise, the fields are likely to become unbalanced > and losses occur. 6 inch spacing away from any conductive medium > is just about right. > -- > 73, Cecil http://www.qsl.net/w5dxp > ==================================== There is no great need to exactly centralise the feedline inside the pipe. The amount of radiation from the balanced feedline feeding a balanced antenna, inside the pipe or not, will be negligble. Loss induced in the metal pipe will also be negligible. The resistivity of steel is very low. With a 1 foot diameter pipe the decrease in line impedance Zo will also be negligible. As a precaution, if the chimney is not vertical, try to keep the same wire of the line away from the chimney walls for appreciable lengths. Very slowly, about every few feet, twist the line about itself. After construction, if the line is moved about and there is no difference in the tuner setting then there's nothing to worry about. --- Reg, G4FGQ Article: 216474 of rec.radio.amateur.antenna Date: Fri, 19 Aug 2005 10:36:08 -0500 From: Tom Ring Subject: Re: Non-techie asks for help................ References: <24m8g110uk3mj99burij3c18d8oe7eig5t@4ax.com> <11g8tur9cdvb6d7@corp.supernews.com> <3lebg15lu5ftq1m90lacu8v97t9e3n85k2@4ax.com> <4305d159$0$32205$39cecf19@news.twtelecom.net> Message-ID: <4305fc67$0$32201$39cecf19@news.twtelecom.net> Well, nothing in english seems to be available. There is a link to the German ebay that will sell me one. There also seems to be something in Russian, but I can't do much with that. tom K0TAR Stephen Parry wrote: > On Fri, 19 Aug 2005 07:32:25 -0500, Tom Ring > wrote: > > Model id Mercedes-Benz badged Truckline CC25 made I think by Becker > >>I wonder if the radio has a trimmer capacitor like many of the US AM BCB >>radios have had over the years. You would normally have to pull the >>radio from the dash and inspect it to see. If it does, it may help a >>bit to tweak it. >> >>What is the model number of the unit? Maybe we can find an online >>user's manual. >> >>tom >>K0TAR Article: 216475 of rec.radio.amateur.antenna From: "Jim Leder" References: <1124379392_4049@spool6-east.superfeed.net> Subject: Re: G5RV in horizontal L Date: Fri, 19 Aug 2005 11:54:34 -0400 Message-ID: Cecil, no argument. All I meant was the theory behind a G5RV is the same as an EDZ. Nothing more. The G5RV provides a better pattern than an EDZ at the expense of some gain, but basically the design criteria is the same. The original G5RV was never intended to be anything but a 20 meter antenna (at least as far as I've read). The fact that it works on other bands is just icing. I use a 'modified' G5RV, similar to what Cebik describes on one of his web pages (think it's the ZS6BKV design) and found it to be a better G5RV than the original and it's shorter. Think mine is around 94 feet long. I've also built a 20 meter EDZ (still have it rolled up in the garage) and found it to be a great antenna but the beamwidth was too narrow to live with. BTW, for what ever reason it worked really well on 15 also. My 94' antenna works well on 40,20,17,12 and part of 10. It will load on 75, but not sure how well it radiates. SWR on the other 5 bands is under 2.5:1 at resonance with 40 and 20 under 2:1. Holy cow, I would never argue with you guys. I guess my main point is that all of these type of antennas are collinear type antennas and to get the best performance from them, they need to be in a flat top configuration. However, you work with what you have and if that dictates a Vee or L configuration, then you do it. 73's Jim "Cecil Moore" wrote in message news:1124379392_4049@spool6-east.superfeed.net... > Jim Leder wrote: >> A G5RV is really an inefficient collinear antenna, so it needs to be a >> flatop, not a Vee or L. Model it and you will see it is a 'long' (on 20 >> meters) Extended Double Zepp. > > Jim, your statement is a little confusing. I know you mean that the > G5RV is 1/4WL too long to be called an Extended Double Zepp on 20m. > An EDZ is a single frequency antenna. The 102' G5RV is an EDZ on 11.5 > MHz. EDZ length = 1170/F. And, you're right, G5RV's perform better as > a flat-top. > > My modified G5RV performs as well as my 130' doublet fed with ladder- > line, given the slightly different radiation patterns. I vary the > length of the G5RV series matching section as follows: > > 3.8 MHz 23 ft., 7.2 MHz 35 ft., 10.125 MHz 20 ft., 14.2 Mhz 29 ft., > 18.14 Mhz 36 ft., 21.3 MHz 27 ft., 24.95 MHz 29 ft., 28.4 Mhz 22.5 ft. > -- > 73, Cecil http://www.qsl.net/w5dxp > > ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet > News==---- > http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ > Newsgroups > ----= East and West-Coast Server Farms - Total Privacy via Encryption > =---- Article: 216476 of rec.radio.amateur.antenna Subject: Re: G5RV in horizontal L From: Cecil Moore Date: Fri, 19 Aug 2005 11:46:48 -0500 Message-ID: <1124470215_2979@spool6-east.superfeed.net> References: <1124379392_4049@spool6-east.superfeed.net> Jim Leder wrote: > Holy cow, I would never argue with you guys. Hi Jim, I was just expanding a bit on what you said, not arguing with you. Please feel free to argue with me anytime you think I am wrong. I only learn something new when I'm wrong. And I won't "ploink" you for disagreeing with me. -- 73, Cecil, http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! >100,000 Newsgroups ---= East/West-Coast Server Farms - Total Privacy via Encryption =--- Article: 216477 of rec.radio.amateur.antenna From: "Fred W4JLE" References: <24m8g110uk3mj99burij3c18d8oe7eig5t@4ax.com> <6eacd$4304b913$97d55936$11756@ALLTEL.NET> Subject: Re: Non-techie asks for help................ Date: Fri, 19 Aug 2005 13:17:14 -0400 Message-ID: Simply tap off at the junction of the two batteries. The truck series two 12 volt batteries to give you 24. Find the the junction where the plus of one is tied to the minus of the next. Tap off a wire at this point. I would fuse it at the connection point. This will provide the necessary voltage for the radio. CAUTION! I have made the assumption that your truck has the chassis tied to the negative side of the first battery. In the event you have a positive ground truck let me know and I will tell you how to get around that problem. "Stephen Parry" wrote in message news:n5hbg15m0b1smp0svidqo61a1pqt50p1qr@4ax.com... > On Thu, 18 Aug 2005 12:35:38 -0400, "Fred W4JLE" > wrote: > Fred I think you must be Psychic! > current system is all 24V, yesterday went out and paid £35.00 for a > DC/DC dropper so I could fit a car radio... are you saying that this > will make things worse? > >One problem you might look at aside from all the other great suggestions is > >to look at how your radio voltage is derived. Most trucks are 24 volt and > >the radios 12 volt. > > > >Are you tapping at the junction of the two twelve volt batteries or does > >your truck use a 24 to 12 volt converter? These are usually really noisy > >from an electrical standpoint. > > > >"Stephen Parry" wrote in message > >news:24m8g110uk3mj99burij3c18d8oe7eig5t@4ax.com... > >> Hi folks, first let me apologise for not lurking, or even reading a > >> FAQ (I did look and did not find). I know that radio amateurs are a > >> helpful and friendly bunch, so here goes. > >> From the UK, for historical reasons, the BBC broadcasts programmes on > >> Long wave, specifically 1500 metres (198 Khz???). I drive a truck on > >> the continent of Europe, and would love to listen to this service > >> whilst on the road (for the cricket!). I know that the signal is > >> there, and of sufficient strength, as I can receive it OUTSIDE the > >> truck on an ancient "portable" Inside the steel box (cab) however, too > >> much noise/too little signal to be useful. The fitted radio has LW, > >> but again cannot be used for the noise. Could anyone please point me > >> to some answers to the following: > >> Antennae: Could I build (buy) some kind of antenna specifically to > >> receive this emission? > >> (My old radio has a socket labelled "AM antenna"). > >> Could I build a receiver tuned only to this freq., with no need for a > >> speaker (run the sound in at headphone type power) that I could > >> hang/bolt outside the truck (on the roof?), with its own battery and > >> aerial? If so could someone point me to a diagram of such a beastie? > > Article: 216478 of rec.radio.amateur.antenna From: richardharrison@webtv.net (Richard Harrison) Subject: Re: Non-techie asks for help................ Date: Fri, 19 Aug 2005 12:26:58 -0500 Message-ID: <3549-43061662-383@storefull-3255.bay.webtv.net> References: Stephen Parry wrote: "Yes I think I do have alternator noise could you explain what I might do?" Often the first sign of diode failure is a whine in the loudspeaker of your radio which varies in pitch with engine speed. Alternators have no commutator but use silicon diodes to make d-c from the a-c they generate. It`s usually 3-phase, using (6) diodes in (2) groups of 3 each in a full-wave rectifier. These are located inside the alternator. If any of the diodes fails, at least one of the 3 pahases quits contributing to the alternator output. Maximum output is reduced. Replace the diodes. The whine goes away and full output is restored to the alternator when required. Stephan also wrote: "I think we might have been divided by our common language!" What Americans call a hood, I believe, is what the English call a bonnet. The effectiveness of a screened enclosure depends on good connections between its pieces. In a modern diesel truck there may be noise generating electrical fuel-injection control, rotating belts which generate static discharge noise, electrical relays and contactors, and other sources of radio frequency noise. Noise containment is one goal of the bonnet. The hinge which holds the bonnet and the latch which locks it are often inadequate in r-f continuity. Their electrical contact is not good enough. Wheels rotate on stationary spindles and axles. Rotation can produce charge which repeatedly arcs across wheel bearings or other points. Spiral springs are made with a large diameter on one end to rest on a stationary part of the wheel assembly. The spring tapers down to a small diameter or point on its other end. This point makes contact with a hammer-on cap over the nut which holds the wheel on its spindle. The cap rotates with the wheel. So we have a conducting connection between the wheel and the non-rotating parts of the vehicle. Only extreme noise cases require these springs. Stephen also questioned what I meant by perfect antenna cables. I once repaired rafios and my experience is that most noisy automobile receivers got that way from defective antennas and antenna cables. The base of the antenna needs a good connection to the vehicle body, which is the other half of the antenna. The vehicle body is the connection for the cable shield. The shield needs to be continuous to carry the signal rather than having the body carrying the signal where it may be exposed to noise currents. I wrote: "Keep the antenna away from and shielded from sources of interference." When one installs an antenna, it should be placed in a quiet receiving location if possible. It should not be installed on the same side of a screen as wires carrying interference. The antenna should be installed on the outside of the truck cab where it has large exposure to the signal. When I said bonding, I did mean a clean earth return but I was not thinking of battery current. I was thinking of r-f currents, signal and noise. Radio frequencies don`t penetrate deeply into metal but travel on the surface. Large surface area is needed for low r-f impedance. Battery current uses the entire cross section of the metal. Wires slung under running boards and the chassis are not much used now. Other noisy conductors may be nearby Broadcast ground waves are vertically polarized. It makes sense to use a vertical whip for reception, though almost any wire works. Stephen`s portable likely has a loop antenna inside which makes it somewhat bidirectional in azimuth. A vehicle mey be found in any position. This makes an antenna which is nondirectional in azimuth desirable. Best regards, Richard Harrison, KB5WZI Article: 216479 of rec.radio.amateur.antenna From: "Reg Edwards" Subject: Off topic. Statistics. Date: Fri, 19 Aug 2005 17:45:07 +0000 (UTC) Message-ID: Having temporarily run short of suitable radio topics to write programs about, I came across an older program of mine which people of your intellect might be inerested in. Play with. Or use even. Program HYPERGEO(metric) solves an extremely wide range of important statistical problems. Basically, it is involved with "The Significance of the Difference Between Two Proportions". Input data is in the form of a so-called 2-by-2 Contingency Table. Just 4 numbers. EXAMPLE 1. Manufacturing Quality control. We take a relatively small random sample of N1 widgets from a large batch of widgets and find that a number D1 of them are defective. We then take a relatively small random sample N2 from another manufacturer's large batch and find that that a number D2 of them are defective. The question arises, which manufacturer's product has the highest quality. Bear in mind it is expensive and time-consuming to 100 percent inspect both batches. It may be agreed in advance to inspect only a few percent of the batch sizes or just a fixed number regardless of batch size. So we are obliged to ask the question - from the two samples, is one manufacturer's quality REALLY better than the other? By how mutch is it due to the random selection of a relatively small number of individual widgets from a batch? Probabities are clearly involved. EXAMPLE 2. Medicine and Health of Populations. There has been an epidemic. A fraction of the population were innoculated against it. Out of a sample of people who have been innoculated a number N1 did not suffer from the disease but a number N2 did suffer and die. Out of a sample of people who were NOT innoculated a number N3 were not affected by the disease but a number N4 suffered and died. The question arises, how effective was the innoculation? It may possibly have had adverse affects. The answer is a matter of probability statistics. International Pharmaceuticals please note. There must be other applications in the relatively narrow field of radio communication, perhaps involving the randomness of noise, crosstalk and interference. 2-by-2 Contingency Tables, just waiting for analysis, arise all over the place. Anyone further interested can look up the works of Sir Ronald Arthur Fisher. For example, a collection of his works can be found in - "Statistical Methods, Experimental Design and Scientific Inference". An international master, Fisher was involved with the fields of statistics, agriculture, genetics, mathematics, engineering, biology, medicine, etc. Before the age of electronic computers he devised new statistical tables such as the F-Distribution for ANOVA. He died in 1962. Fisher's writings are works of logical plain simple English. The maths are few and don't get in the way. Like Heaviside, a revolutionary. His opinions of earlier workers are scathing. After many years of haggling between prominent statisticians about the correct interpretation of the apparently simple 2-by-2 Contingency Table, it was Fisher's logic which ended the arguments. Despite its simplicity, the numbers involved in the probability calculations are so large it is necessary use their logarithms to prevent numerical overload of ordinary computers. Within the next few hours I'll make program HYPERGEO available from the following website. It would be a pity should it be lost. ---- ........................................................... Regards from Reg, G4FGQ For Free Radio Design Software go to http://www.btinternet.com/~g4fgq.regp ........................................................... Article: 216480 of rec.radio.amateur.antenna From: "Reg Edwards" Subject: Re: G5RV in horizontal L Date: Fri, 19 Aug 2005 18:51:25 +0000 (UTC) Message-ID: References: <1124379392_4049@spool6-east.superfeed.net> "Jim Leder" wrote > Holy cow, I would never argue with you guys. > ==================================== Yes, its a complete waste of bandwidth. You, the questioner, can't possibly win. Its never been known to happen. They will deliberatly twist and distort anything you say. Then, they will deliberately twist and distort anything they have said themselves. One or two of them, never Cecil, will resort to blackening your character and, quite unjustifiable, accuse you of lying. But, on the whole, they are only nice ordinary human beings. It's just a matter of sorting the wheat from the chaff. ;o) ---- Reg.