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RFI with rear defogger


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1991 Loyale 5spd 4WD wagon.

When I am listening to the fm tuner and switch on my rear defogger, static obscures the radio signal. Isn't that thing just a nichrome type heating element? What would cause the radio to gain noise like this?

 

Kalo:confused:

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  • 1 month later...

I have only had trouble with this when my alternator was going south; bad diode...........now my FM tuner sounds clean......it's the AM tuner that is hard to clean up.............Medium Frequencies are tough when it comes to ambient noise; especially overhead power lines................I digress.............Next time I jump in the car, I will see if my rear window heater has the same effect........very interesting.

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