Hello all. I have a question. How come with some commercial radios, Tone
Squelch only works when the mic clip is grounded, so when you remove the
mic
from the clip, it opens the receive to everything?

I recently bought a Standard UHF radio for GMRS use and it has this, so my
wife
can listen for me without hearing other junk, but when she removes the mic
(that I had to ground), she hears everything on the freq!
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73! de Andy KC2SSB - WPYI880 (GMRS)
Beachwood, NJ USA! Grid FM29vw
http://vhfradiobuff.tripod.com

It is so that you will hear the other users. That way you will know not to
try and talk while the frequency is in use by others that have a differant
tone setting.