The 'low battery' issue was the problem. I tweaked the power supply voltage up to 12.8 or so and no more noise!
Thanks everyone for your assistance. 73s de Paul VA3LX Paul Taenzer [email protected] 613-385-1226 On Sun, Nov 15, 2015 at 5:38 PM, Paul Taenzer <[email protected]> wrote: > One more thing I just noticed. > > Sometimes (I can't figure out the pattern) the bottom line on the K3 > display says low battery. > > I'm not sure what that could be referring to. > > Perhaps it's related to the mic noise?? > > TNX > > Paul > VA3LX > > Paul Taenzer > [email protected] > 613-385-1226 > > On Sun, Nov 15, 2015 at 5:35 PM, Paul Taenzer <[email protected]> wrote: > >> Thanks for you quick response! >> >> Unfortunately that didn't seem to do the trick. >> >> The speakers are not on (speakers + phone = no) and I tried turning the >> monitor gain to zero. >> >> Still no joy. >> >> Other thoughts? >> >> TNX agn, >> >> Paul >> VA3LX >> >> Paul Taenzer >> [email protected] >> 613-385-1226 >> >> On Sun, Nov 15, 2015 at 5:00 PM, Pierfrancesco Caci <[email protected]> >> wrote: >> >>> >>>>> "Paul" == Paul Taenzer <[email protected]> writes: >>> >>> Paul> I recently developed a high pitched tone and seemingly random >>> Paul> noise when >>> Paul> keying the mic with either PTT or VOX >>> >>> >>> Paul> The noise goes away when the mic gain is set to zero. Changing >>> Paul> from the >>> Paul> Yamaha CM500 to a random computer headset made no difference. >>> >>> >>> how's your monitor level set? I once forgot to turn it down after some >>> tests, and it was getting back in the mic, causing the typical loop >>> whistle. >>> >>> -- >>> Pierfrancesco Caci, ik5pvx >>> >> >> > ______________________________________________________________ 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]
