Ed,
You can use the stereo mic connector directly into the KX3 if you turn
MIC BTN off in the menu. You should also turn off MIC BIAS which
results in a cleaner signal - the mic then gets its bias from the LOGIC
residual voltage that is normally applied to the ring.
You can use the XMIT button to initiate transmit, or use VOX.
That may be inadequate for your purposes since you need to activate PTT
from your sequencer. The only alternative is to build a special cable
or as has been suggested several times on this reflector, use an adapter
with a stereo male plug and one jack that connects to the ring and
another to the tip. You might search the archives to see some of the
sources and part numbers. If you use an adapter like that, you do not
have to turn off MIC BTN and MIC BIAS.
The stereo plug does connect the LOGIC ground and the Signal ground
together, but no apparent harm has been mentioned because of that.
73,
Don W3FPR
On 11/10/2017 2:58 PM, Edward R Cole wrote:
Guess finally time that I consider a Yamaha CM500. Considering
operating in remote open areas with my KX3-2M as IF radio for mw, it
will be handy to have the headset/boom mic combo.
I note the CM500 comes with separate mic and headset connectors while
the KX3 has that four ring mic connector. I wonder if a conversion
cable has been made or offered? I will probably be plugging the boom
mic into a sequencer box which will delay activation of PTT while
passing on mic audio. Still will need a cable to plug into the KX3 mic
jack. I assume the headset connector is compatible with KX3?
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