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luc luc is offline
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First recorded activity by BoatBanter: Jul 2006
Posts: 26
Default Static on FM Radio

it is certainly an appropriate question, and I wondered exactly that
same thing. I haven't noticed it on the VHF, but then I'm not
listening to it for music, or news, and static might be less unusual
than on an FM set. The CD/FM/AM radio is a car radio, and worked fine
in my last car, but junked the car and kept the radio. Now there is
static.. I'm inclined to thinking it's in the 12V wiring rather than
outputting RF, but I don't kow, and don't know how to test for it
either.

thanks for your reply,

Luc


chuck wrote:
luc wrote:
I've got excessive static on my FM radio, and discovered it's my
battery charger. Obviously, I want to keep the charger going, but
wonder if anyone knows how to suppress that noise.

Also, my refrigerator works on my batteries, and my charger charges
them. Is this going to decrease the battery life, to be continually
running the refrigeration on batteries, then charging the batteries to
keep up?

thanks for any information,

Luc


Hello Luc,

I would guess the interference is
getting into your FM radio via the 12
wiring, either by conduction or
radiation from the charger. I would
expect the former.

The interference you describe is unusual
for battery chargers and raises the
question of whether it has always been
that way or whether this is a recent
development. Is the battery charger an
old one? Do you get static on any other
radios wired into the 12 volt system?

It would be good to know where the
problem resides and whether it is a
design problem or a defective component
in either the radio or the charger. That
will make it easier to talk about a fix.

Can you provide more info?

Chuck

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