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Question about Icom M302 VHF Radio

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Icom vhf radio

I have a twin engine outboard boat and when i have my engine off i don't have any issues with my vhf. Once i turn either engine on i get a hum in my vhf speaker. It does not matter what engine is on. Do i have a bad filter in my vhf. I also don't get the hum in my stereo system pulling off the same power source as the vhf. Any ideas?

Posted by baldy1 on

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I have the same unit. i get interferance from my depth finder wire touching the antena wire off the back of the radio. make sure that no wires are touching the antena wire.

Posted on Dec 01, 2008

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Probably not the squelch but the speaker on the VHF. These radios are famous for crapping out when getting wet.
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Any recommendations?

You can find a helpful guide at the following link:
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Have fun!
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