I’m thinking that the bias on/off is a voltage applied to the mic lead, pin 1. That works for some xlr hookups. I was thinking that pin 5 for the kenwood (also) powers the amp in the base of some of the kenwood mics. The pin 5 or 6 voltage is on all the time.
Chuck Jack Ke9uw Sent from my iPhone, cjack > On Feb 8, 2018, at 4:24 AM, David Pratt <[email protected]> wrote: > > I am delighted to report back that changing the wire from pin-5 to pin-6 > has done the trick. DTMF tones work fine on the K3 as do also the UP and > DOWN buttons with MIC BTN On in the CONFIG menu. The DTMF tones also > work on the K2. > > What is surprising, however, is that everything works equally well > whether MIC BIAS is On or Off. I would have thought that the voltage on > pin-6 of the front panel socket would have gone off when MIC BIAS is set > to Off, but that is evidently not the case. > > Thank you again, Joe. > > 73 de David G4DMP > > In a recent message, "Joe Subich, W4TV" <[email protected]> writes >> >> Elecraft and Kenwood reverse the pin used for +8V that powers >> the DTMF encoder. You will need to move the wire on pin 5 of >> the Kenwood Foster plug to pin 6 to get the +8V from K3/K3s. > >> The same is true if you want to use a Kenwood desk mic with >> built-in preamp or active equalizer (e.g., MC-60A, MC-80, MC-85, >> etc.) with the preamp or eq. > >> 73, > > ... Joe, W4TV > > -- > + - - - - - - - - - - - - - - - - + > | David M Pratt, Kippax, Leeds. | > | Website: http://www.g4dmp.co.uk | > + - - - - - - - - - - - - - - - - + > > ______________________________________________________________ > 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 > Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected]
