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Old 31 December 2008, 11:21   #1
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Country: Ireland
Town: Castlebar
Boat name: Clewless
Make: Valiant DR 490
Length: 4m +
Engine: 60 hp ETEC
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Engine interferring with VHF set

I need some help to try and sort out a problem. I have a 60 hp Etec which interfers with both the H/H VHF and the Fixed VHF. It sounds like a HT crackle on boath sets.

Any thoughts

TSM
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Old 31 December 2008, 11:40   #2
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Country: UK - England
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Make: Avon SR4,Tremlett 23
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Engine: Yam 55, Volvo 200
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When does it do it? ie when you apply throttle, when you put the ignition on etc?
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Old 01 January 2009, 00:10   #3
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If you're picking up the RFI from the spark plug wires, I recall that going to resistor plugs or/and wires cuts down the current flow and limits the RFI. Not really sure I'd go playing with a motor that's working well, but there you go.

Might also make sure you've got a good solid ground to the VHF, and the shield to the antenna cable is well connected to the unit.

jky
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Old 01 January 2009, 08:01   #4
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Country: UK - England
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My h/held (ICOM)packs up at anything over tickover unless the squelch is at max , but I only intend to use it if the engine stops ! At any revs I cant hear anything coz of the wind noise anyway .
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Old 01 January 2009, 09:22   #5
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Country: Ireland
Town: Castlebar
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Make: Valiant DR 490
Length: 4m +
Engine: 60 hp ETEC
MMSI: Awaitng one
Join Date: Oct 2007
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i am in the same boat as blackroady. i cannot hear the crackle unless i am at tickover. both of my radios are ico m71 and m422
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