Brian, I would suggest you investigate the possibility of an open AF return connection in the microphone or its plug. Yes, there are other possibilities, but if it happened suddenly, then perhaps a broken wire could be the only problem.
73, Don W3FPR On 4/3/2011 7:58 PM, radiori wrote: > Follow-up to my original post. If I short PTT (pin 2) on the front panel > microphone connector to either shell or ground (pin 8) the radio goes into > transmit with NO hum. Similarly if I short Mic Audio (pin 1) to shell or > ground with VOX enabled the radio transmits with no hum. So perhaps it is > the microphone. > > Thanks, Brian, K1NW > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
