Radio Shack Mic
 

"Fat Ass Fred" wrote...
Out of curiosity, anyone know how the Microphone of the Radio Shack
CB's that have the up and down channel built into the Microphone?

How they what?

I've got 2 CB's that support this feature,

What do they "support"? Up / down scanning, or do they actually
allow it from the microphone? Not all radios which use up and
down buttons on the radio may have the connections available
for the microphone.

and I'm a little curious on how its setup and wondering
how hard it'd be to take a better mic and add the
up/down features into it....

If the radio has the connections on the microphone socket and
the new microphone has the buttons, you simply wire the new
microphone correctly for that radio.

If the radios do not have the connections, you will have to trace
them on the PCB and make connections. If the microphone
socket has not enough pins, you will need to change it.
If you do this, try to make the wiring like a standard radio with
scan on the microphone... so it's easy to remember or look up
the wiring.


Really and truely, the up/down feature isn't something I
have to have, and there's times it gets in the way....

What are the radios?
There is a microphone wiring database on my site (below). If
your radios allow scanning from the microphone, the data
should be there.

Be very careful. Some radios that have scanning from the
microphones MUST be wired correctly first time. Mistakes
can pop the PLL, which can be expensive.


Regards,

Peter.
http://www.citizensband.radiouk.com/