I have been trying to get my CM500 headset running with my K3.
Using the MH2 mic plugged into the front panel with MIC SEL to
FP.L bias in the voice modes (AM, FM SSB, & CS) while MIC SEL is
set to rP.L bias for the DATA modes. MIC+LIN is set to On for
all modes. This setup works well using VOX for transmitter
keying in DATA and manually turning VOX off and using PTT when I
run voice modes. (I'm mostly a DATA A and AFSK A operator.)
If I plug the microphone from the CM500 into the rear panel of
the K3, and change MIC SEL to rP.L bias, this division between
voice modes and data mode no longer works. Noise in the shack
keys the transmitter, and I assume is added to the output signal
-- not good.
So, my current plan, unless someone says, "Hey Dummy!", is to
build an interface box which plugs into the front panel MIC
connector to route the audio from the CM500 to the K3. I can
include a jack for a foot switch to do PTT and set it up so the
MH2 is also available. (Thanks Don for the pointer to Universal
Radio for the Mic connectors.)
My questions are: What to do with the other 3 lines? I can add
buttons to UP and DOWN lines to provide another way for tuning
the radio, but what does the FUNCTION line do? And, can I
parallel the Mic audio from the CM500 and the MH2 or would it be
better to switch them? (Fewer switches and modes will make my
wife, KI6SLX happier.)
Cheers - Bill, AE6JV
-----------------------------------------------------------------------
Bill Frantz |Security, like correctness, is| Periwinkle
(408)356-8506 |not an add-on feature. - Attr-| 16345
Englewood Ave
www.pwpconsult.com |ibuted to Andrew Tanenbaum | Los Gatos,
CA 95032
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