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AM/FM radio on boat,

Loud pops make radio unuseable. Was told that this was second radio installed in this boat that had same problem. A friend also has same problem. Is there a difference in Marine and automobile radios? Does the electrical system need a filter? It is just a boat battery 12 volt connection.

Any help would be appreciated.

Thanks,
Pat

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  • patrick65 May 28, 2008

    Different battery made no difference. Believe radio is already "broke", from some other source/incident. I found the place where this radio was sold and serviced. I will contact them for addtional help. Thanks. I will update this incident if I find a fix for this problem.

  • patrick65 May 29, 2008

    I did disconnect the radio from the boat battery, and hot wired a different battery to the radio. No change, radio still pops.

    This is a plane and simple circuit. Problem has to be in the radio itself, but I don't know what is causing it.

  • patrick65 Jun 08, 2008

    I went to a junk yard and purchased a car radio for $10. Grafted the plugs together and Walla! It worked. So problem was in the radio.

    Thanks for your thoughts.

×

2 Answers

I didn't mean replace the battery.

"I would bring another battery on board (Charged fully), one that isnt connected to the boats electrical system and see if the emi still afflicts reception."

NOT connected to the alternator.
Does the unit work fine in a car or at home?

Posted on May 29, 2008

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First thing i'd do here would be to investigate if the electromagnetic interference is coming in through the supply feed. I would bring another battery on board (Charged fully), one that isnt connected to the boats electrical system and see if the emi still afflicts reception. If it stops or reduces to a permissible level one can attack the problem with emi suppressors and filters. A good place to start would be the alternator, try suppressing the emi at source.
The second path the emi takes to pollute reception would be via air straight to the units antenna.
The solution sought here might not be a single remedy but a total of 3 or 4 tweaks, each leading to a percentage improvement. try shifting the antenna too, maybe shielding might contribute some.
Jango

Posted on May 27, 2008

  • Jango Fixit
    Jango Fixit Jun 08, 2008

    Sorry i misunderstood, the radio itself is busted right? I guess your next purchase ought to be a marine radio like u said.

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