Thanks for everyone's comments on the CM-500 headset. To bring
my question about reattaching the mic boom full circle, I
decided to throw money at the problem which seems to have made
it gone away. :-)
I ordered a new CM-500 from B&H Camera and Video ($60, no tax,
free shipping). It arrived a day early in good shape. It
included the headset, two 3.5mm to 1/4 inch adapters, one mono
the other stereo, and a box that holds two AA cells which I
haven't used. There were no instructions for use, but it did
include the usual warning about using them with AC powered
equipment in a hot tub, and hearing damage from playing them too loud.
The packaging said (in part), "Dynamic Microphone for Active
Musicians". And specs: Operating range: 100-16000 Hz,
Sensitivity -56dB 3dB (-36 dB 3dB V/Pa). Pattern:
Uni-directional (cardiod).
I plugged it into my K3 and it worked as a direct replacement
for the old one. When I turned microphone bias off in the menu
it stopped working. By turning bias back on it started working
again. (BTW, the Elecraft radios may be the only gear I own that
doesn't automatically provide bias power.)
I managed to make a QSO with it, so it's working well enough to
pass my call to the other end. I hope people on the SSB nets
tomorrow will give an audio quality check.
73 Bill AE6JV
--------------------------------------------------------------
Bill Frantz | There are now so many exceptions to the
408-348-7900 | Fourth Amendment that it operates only by
www.pwpconsult.com | accident. - William Hugh Murray
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