"John" wrote in message
...
Most of the plug in PTT switches switch both the mic audio and the PTT
switch with a double pole normally open switch. You need to modify
the switch wiring at either the male or female plug of the plug in
PTTswitch so that you always have a audio path.
The tip is the PTT; the ring is the audio ;and the barrel is the
ground connection.
You will need an ohmmeter to find out where to install the shorting
jumper to short across the audio part of the switch so that the audio
is always active.To do this you want to make a connection from the
ring terminal of the jack to the ring terminal of the plug at all
times.

On Mon, 12 Apr 2004 18:53:56 -0700, "Eric Brown"
wrote:

I'm trying to use a portable push-to-talk switch as a co-pilot PTT w/ my
built-in intercom. The Portable PTT accepts a male mic connector and has
it's own male connector that is inserted into the female mic connecter in
the intercom.

When these connections are made, the PTT function works properly, but the
co-pilots mic isn't transmitted to the other intercom participants for
normal (non-radio) communications.

I have access to all the connections of the female mic jack on the PTT
switch. Does anyone know how to re-wire it so that the mic is still in
the
intercom circuit?

Thanks in advance!

Eric B. CP-ASEL-IA



That did the job! Thanks a mill!