Engine interference solutions?

[markymarkP]

i have a bit of noise that comes over the radio when the engine is running, so i was going to supress it with a capacitor.

where is the best place to put this? on the 12v feed back from the engine? or on the feed from the battery to the console?

any other tips of good things to try?

[jyasaki]

A ferrite on the power input of the VHF, and resistor plugs on the motor. Make sure your antenna connections are well-soldered and all connectors are clean and secure.

Where were you going to put the capacitor?

jky

[markymarkP]

maybe its not a capacitor, its named as a noise suppressor. it goes on the 12v positive, it has an output to whatever, and a negative back to the battery

[Jizm]

Which exact engine do you have? What plugs does it use?

[markymarkP]

its a mercury 2005 115hp two stroke

the plugs are NGK ones, the correct spec plus. BPZ8H-N-10-NGK

[Jizm]

I only ask as some plugs have resistors built in to suppress interference on electrical equipment. Don't think thats the case with yours though.

[Chris]

which aerial do you have?

[markymarkP]

just changed it this week to a new one. so i may of fixed this problem already!

one of these is now fitted:

http://vtronix-antennas.com/antennas...t=rib&show=yrr

i noticed an immediate ability to receive better signals, the old one was pants, so maybe i have cured it. sadly with weather like it is, it will be a few days before i can test it properly

[whisper]

If you still need one, I think you could buy a noise suppressor from a car stereo shop.

[uncle al]

the sparkplugs that are fitted do have the resister in them, is the co-axual cable routed on or near battery or control box cables? ideally the co-axe should be rigged on its own (isolated) from any electical cable