Hi group!
I have a vhf pll exciter that is very noisy, by that I mean scratchy
sounds on the carrier. When I unplug the PA and run the exciter
alone with no audio into a dummy load I get this noise, so I know it
is coming from
the exciter. I cleaned all the contacts that the audio and bandpass
boards plug into and also the edge connecter plug, ICOM etc. Touched
all posts with a touch of new solder, but still have it.
I even swapped audio and bandpass boards to no avail. So I replaced
it with another exciter, and this one is a
lot quieter. What would cause this exciter to generate noise? I
modified the Band Pass Filter from G2 to a G1 and replaced the
aluminum slug with a ferrite one. I would like to fix this one if I
can as they are hard to come by. Is there any suggestions where I
should start looking? Has anyone else had this problem? Thanks in
advance.
Jim KM�K
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