Sergio, I operate CW so when I use two radios I have ZERO microphones,
I use a very double pole single throw switch (DPST) to change the cw keying
line from one radio to another....if the switch handle is pointed at the
left radio it is the left radio that is keyed...if the switch handle is
pointed toward the right radio the right radio is keyed.
This is perfect for CW - YOU CANNOT SEND ON TWO BANDS AT ONE TIME BECAUSE
ONLY ONE RIG CAN BE KEYED AT A TIME!
If I needed to one day do some SSB operation, I would use this same switch
to open and close the power for a multiple contact relay, and the mic leads
going to each rig could be selected that way....I would probably make the
"run radio" be power off on the relay, and the multiplier "Search and
Pounce" radio be the one the microphone would go to when the relay was
The SSB guys on this reflector can probably give you details but I suspect
you get the idea A-OK!
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