Noise Filter

Turn down talkback?

 

I've watched the tech I use cure a squealing radio many times. Don't know what he does exactly, but it is more than turning down the talk back. But that is the first thing to try.

 

i have an on off switch for talkback on all my radios that have talkback. its kinda like that old tv informercial.......set it and forget it!

 

i had same prob. buying the noise filter did not help at all.

 

I tried one of those, too, but I may have bought the wrong item from the infomercial. I had one of my CB rigs hooked up to The Clapper ("Clap on ... clap off!") and I ran off the road while trying to get the right radio turned on to get directions in downtown Charlotte.....

73 & Happy New Year, all.

 

I am at a loss as to how the window can cause a radio to "squeal". I can understand acoustic feedback from the talkback circuit getting into the microphone; the window gives a nice reflective surface for the sound waves.

One thought... since you probably have passivated (metal containing) glass for your windows, the RF being radiated from all that excess coax winding around behind the dash no longer has a way to escape the inside of the cab, and it's getting into the audio amplifier of your CB.

Seriously, though, try turning down the power (if you're running more than 4W) and see if the squeal goes away.

 

Power Window motor.... on the Volvo it was high pitch. on a Pete not so much