Engine noise on the radio. (not sure if this was ever discussed)

[kcfromohio]

The radio in my boat was making a static clicking noise on some stations. I thought it was from my engine or bad plug wires..
I turned my engine off and still heard the clicking noise. I blamed it on the outboards in the lake near me. Yesterday I was boating
and listening to the radio with the static. For some reason I turned my depth/fish finder off and the static stopped.
Who knew? The noise was coming from the radar in my boat!

 

[kcfromohio]

make that the Sonar in my boat!

 

[Scott Danforth]

install a capacitor on the radio power wires to act as a line filter. known issue, discussed thousands of times

 

[StingrayMike]

Could also install inline filters on the outputs to the speakers as well

 

[smokeonthewater]

no that would remove unwanted sounds along with wanted sound... has to be in the power wire.

 

[Grub54891]

Install a filter on the wire. They can be acquired at radio shack. They are called ferites.

 

[JoLin]

Google 'clamp on ferrites'. They clamp around the wire going into the unit. Very cheap. Here's the Radio Shack version Grub mentioned...

http://www.radioshack.com/radioshack-snap-together-ferrite-choke-core/2730105.html