Hi folks,
My TM-700 has the same sound. I have found that the various screws on
the boards can loosen up and become corroded. After you go and retighten
and
clean the corrugation off. The sound goes away for awhile but it always
comes
back. I guess we have to live with it.
Another problem I notice with mine is that when you have it in scan, I can
hear it
in my IC-7K, which is a pain to listen to.
The two radios sit side by side in my pickup. All are connected direct to
the battery
all leads have beads on the power lines.
Here is a question are all of units that have the siren is there a GPS
connected and
running at the time of the sound. In a couple of cases I have turned mine
off and
was told that the sound went away.
73's
Ron W9RMA
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