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Search Auto Parts Search Marine Radio. Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> Car Stereo Repair Advice DanD Veteran / Moderator May 15, 2006, 7:54 AM Post #1 of 3 (1941 views) Marine Radio. Sign In I’ve got a question and I’m not sure if it even belongs on this site let alone this forum; it’s about my marine band radio. The radio is an Uniden Oceanus two-way marine radio that supposedly has internal RF noise protection. With the engine running or not I can receive transmissions clear as a bell but if I try to transmit with the engine running it’s very static filled to the point no one can understand what I’m saying because of the interference noise. With the engine off there’s no problem with the static and I have about a 10 or 12 mile range that people can still receive my transmissions and they tell me it’s a very clear signal. The engine is a 2004 tiller, 40 HP four stroke Honda, electric start with a 12-volt magneto style, 12-amp charging system coil. (Say that 10 times fast. LOL) The ignition system is electronic with crank, cam sensors, ignition module (CPU), three individual coils firing NGK resistor plugs. With the radio transmitting clear with the engine off I believe the radio is ok and the problem is in the ignition system, tachometer or the charging system. Engine, tach and charging system test and work fine. The radio is located about four feet away from the engine at the back of the boat under a shelf/bench seat. The top of the shelf holds an instrument cluster, which contains a voltmeter, trim gauge and a tachometer, which is about a foot away from the radio and the antenna cable. So I guess my question is #1 do I move the radio farther away from the engine and tachometer? Not an easy thing to do with an open boat and keep the radio functional for use as in reaching it from drivers seat, let alone keeping it safe from the elements. #2 do I add more noise filters to the system(s) what kind do you suggest and who/how do I connect the filters to. I’ve tried an inline from an automotive radio repair shop; connected to the power feed of the radio and it made no difference. The funny thing about this is I had this very same radio well before the Honda and tachometer were installed on the boat but the Suzuki engine; which had Magneto ignition and charging systems never gave me this problem. This is really starting to get to me; I can find and repair electronic issues causing derivability problems on cars but I can’t figure this radio out. LOL Dan. Canadian "EH" Tom Greenleaf Ultimate Carjunky / Moderator May 23, 2006, 5:16 AM Post #2 of 3 (1923 views) Re: Marine Radio. Sign In Arggh: I've had a motorcycle pull up beside me (in a car - duh) and could hear interference. Are the plug wires OEM - they should be resistor wires to plugs. They sell solid core wires which are NOT allowed here but can do that. Just a guess, T aarongates25 User Jul 16, 2007, 10:36 PM Post #3 of 3 (1735 views) Re: Marine Radio. Sign In you might want to try to move it away from the other electronics   Email This Post   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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