I had this happen to our clubs repeater and I traced it to the MOD
ADJ pot in the exciter. Some contact cleaner and a few wipes on the
pot cured the problem. Also check the pot(s) in the audio card. A
scope will find the problem if you can catch it when the deviation
(audio) is low. 73, John K2GVP
> I think I would take a look at the Deviation control pot on the
exciter -
> maybe dirty. Does the audio come back by itself? Does it stay
gone long
> enough to divide and conquer, ie, look at the output of the
controller,
> next the input, and determine if it fails in the receiver or
controller, or
> exciter?
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