On Apr 15, 8:11 pm, "Robert M. Gary" wrote:
...Recently it
will occassionally have a buzz in it that is so loud you cannot hear
the transmission. It will buzz on all freq, then later in the flight
it will go away.

What kind of buzz? When it buzzes, is the loudness of the buzz
effected by the vol control? by the squelch control? is the buzz there
even with the power switch off?