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Old 05-08-2012, 10:25 PM   #10
OldNuc
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Join Date: Apr 2008
Location: Far Southwestern Iowa
Posts: 64,613
 

1998 SC2
Default Re: PCM generated radio noise on 146.520

Hi Q series resonant filter across battery to kill it. Batteries make real good filters but they are no good at the higher RF frequencies. The PCM cable in the car may be carefully wrapped with aluminum foil which should be grounded with a good ground strap, not wire.

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