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On 26 Jul 2006 18:01:33 -0700, "SparkySKO" wrote
in .com: Just to clarify, you grounded the "matchbox" part? And it didn't clear up the noise? If so then that might be the best you can do. I would focus on noise from some appliance in your house. Yeah, I don't have the matchbox mounted yet, but I've grounded it to all sorts of places, and no change. It's still best to ground the "matchbox". It may not help much in receive, but may make a difference getting your signal out during transmit. And it -will- stabilize your SWR. You're a genius tho, Many here will disagree. I solved my "powerline" noise problem at home! I isolated the problem to a compact fluorescent lamp. Turn it off, S0, turn it on, S3. My truck is 40 feet from the light too!!!! Have to chuck this thing in the garbage. As close to the fuel pump as possible. Just throw down a tarp. It's worth the effort. You could also try using coax for the power line from your battery (and grounding the shield), but that doesn't always work. Powerline for the fuel pump or the radio? That's a good idea for the fuel pump, never thought about it. Radio... I question whether or not the noise is coming from the radios power source. If the noise is coming through the radio's power line then a cap from positive to ground, as close to the radio (or 'matchbox') as possible, should reduce the noise. Otherwise, the fuel pump is creating RFI and transmitting it on -its- power line, and is being picked up by your radio. In that case you need to cap the fuel pump -at- the fuel pump. I would do both..... but that's me. I never thought about running coax for the fuel line -- sounds like a good idea. I'll have to try that sometime. I worked at a radio shop in Albany in the late '80's and drove through Portland on occasion when they were building all those highways...... gawd what a mess!!! One time it took me two hours to drive just two miles! I hope it's improved since then..... Doesn't take 2 hours to drive 2 miles, but it can. Usually an hour for 20 minutes... They designed the interchanges stupider than crap, .....no kidding.... and so those eat up 50%+ of your time at near idle speeds. Yeah, I never could figure out if they were designing that freeway system from plans or if they were just using 'the force'. Eventually I learned how to sneak around the quagmire via Sandy. I remember Portland used to have a Heathkit store..... what ever happened to that? |
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