Hello Mike, Here I use a Heil ProSet Plus headset which has the HC-4 and HC-5 mike elements, although I do not use the HC-4 "DX" element with my K2/100 #3255 which does not contain any of the "official" mods. I do not use any external mic preamp with this K2/100 because one is not required, i.e.100 watts pep output is delivered on all bands without an external mic preamp.
SSBA and SSBC are both set to 3, but I do not use VOX. When using the K2/100 I try to avoid heavy ALC action, just a flicker of one bar, too much ALC might result in "buckshot" splatter. Because most of my operating involves DX, mostly on 40m and 15m, the nominal bandwidth of the SSB transmit crystal filter in my K2 and other rigs is 2.1 kHz. If a DX's receiver bandwidth is set narrowish, I would suggest that using a wider transmit bandwidth is not really desireable. I did modify my K2's SSB2 filter to reduce its passband ripple, but the change in component values could well be different in other K2's. I won't bore you with the reasons for that. I must admit that I set the PA bias while looking at the IMD products during two tone tests, within the limits of allowed power dissipation of course. Hope that this helps. 73, Geoff GM4ESD Mike-WE0H w...@yahoo.com wrote on Monday, April 20, 2009 at 5:04 AM > Has anyone used a MC-60 mic with a K2? The first comment I got when I > went over to the '930 was more punch to the audio. The '930 was setup > kind of light audio with the ALC barely moving the needle. I use a > MC-60 mic on that radio. The mic preamp was on. I am using a MC-43s > hand mic on the K2, and it is set to the recommended audio and > compression levels. Would the MC-60 drive it a bit stronger yet not > destroy the audio quality? I suspect the K2 might be running super clean > audio with no compression or processing. Could it benefit from a bit > more audio drive or processing? I don't know. What do you guys run for > audio settings on the K2? ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html