Lance, If that is a standard Heil headset (with a dynamic mic element like the HC4 or HC5), then you should *not* have bias turned on. If you have the Proset K2 (with an electret mic element) or a Proset with an -iC (Icom) suffix, that also has an electret element and will require bias.
The "H" or "L" refers to the microphone gain range and *not* to the bias level. You may want to try the low range to have more control over your mic gain (your mic level setting will require higher numbers). 73, Don W3FPR Lance Collister, W7GJ wrote: > Howdy! > > I am using the Heil headset with the K3, and have the mic connected into the > rear > panel (the front panel connection was having RF distortion) with the HIGH > bias level. > The Mic gain is less than 5 and the compression is 10. The ALC is never > out of > the indicated range. > > With the TX GATE turned ON, I get reports of the audio sounding slightly > distorted > and there being "crackling noises". I can hear these crackling sounds in > between > syllables when I turn up the monitor loud in the headphones. All the > crackling > noises disappear when I turn off the TX GATE. Do I have something adjusted > wrong, or > is it just natural to have the crackling noises and distortion when the TX > GATE is > on? I would prefer to run without any distortion, but my loud blower is > right behind > me and it is strong into the mic like a jet plane in between syllables > without the TX > GATE. Do I need to choose between the two evils? > > I would appreciate any guidance. Thanks! VY 73, Lance > > ------------------------------------------------------------------------ > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 8.5.392 / Virus Database: 270.13.38/2274 - Release Date: 07/31/09 > 05:58:00 > > ______________________________________________________________ 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
