Article: 51290 of rec.radio.amateur.digital.misc From: Mark S Subject: Re: MFJ-1278B question - PTT of power off Message-ID: References: Date: Wed, 21 Jun 2006 02:11:31 GMT In article , VHFNUT@whoknows.net says... > I have an MFJ-1278B interface that works fine but when the power is removed > from it, it keys the transmitters PTT line. I'm using it with a Kenwood 2000 > which I don't think matters what radio it would be used with since it is > going to ground on removal of power. I don't have a manual for it since I > bought it off Ebay but it did come with the standard 1278 (not B) manual > which appears to be a good bit different. Anyone have any idea what might be > going on?? > > Tnx and 73, > Ken, WS4V > See QRZ.com for email address if replying directly. > > > > Hi Ken I can't help you with your problem, but I can send you the schematic for the 1278B. Just send an email to me at... markrolandsmith@sbcglobal.net I'll then scan it in and email it to you. 73s Mark Article: 51291 of rec.radio.amateur.digital.misc Message-ID: <4499E77C.202@worldnet.att.net> From: John Siegel Subject: Re: MFJ-1278B question - PTT of power off References: Date: Thu, 22 Jun 2006 00:42:39 GMT Mark S wrote: > In article , > VHFNUT@whoknows.net says... > >>I have an MFJ-1278B interface that works fine but when the power is removed >>from it, it keys the transmitters PTT line. I'm using it with a Kenwood 2000 >>which I don't think matters what radio it would be used with since it is >>going to ground on removal of power. I don't have a manual for it since I >>bought it off Ebay but it did come with the standard 1278 (not B) manual >>which appears to be a good bit different. Anyone have any idea what might be >>going on?? >> >>Tnx and 73, >>Ken, WS4V >>See QRZ.com for email address if replying directly. >> >> >> >> > > > Hi Ken > > I can't help you with your problem, but I can send you the schematic for > the 1278B. > Just send an email to me at... > markrolandsmith@sbcglobal.net > I'll then scan it in and email it to you. > > 73s > > Mark MFJ has many of their manuals on line in pdf for free downloading.