Question about Car Audio Receivers
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.
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
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.
Posted on May 27, 2008
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