Copper Talk » Open Forum » Archived Messages » 2002 » Archived Messages 05/01/2002 to 06/30/2002 » Engine noise and noise filters??? « Previous Next »

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Roadhazard35
Posted on Friday, June 21, 2002 - 7:26 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Hey Guys, Still lurking in the shadows and have installed my Galaxy DX 959 from Coppers(peeked and tuned) and have experienced alot of engine noise. I have a chassy ground and ran a power wire(#10 stranded) to the battery. I then installed a 20 amp noise filter from that Shack place (lol) which reduced the noise some what. I am wondering if you can run two filters in series or should I shoot for some type of sheilded cable. This is a 2001 Chevrolet 2500HD with the 6.0 liter engine and I use the Wilson 5000 Mag antenna. Any suggestions would be appreciated. Thanks, Doug

p.s. The radio will talk!!! sounds good and the stock speaker doesn't seem to be a problem either, its just background noise.
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Biged
Posted on Saturday, June 22, 2002 - 1:29 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

RH35,
Yes, you can run 2 filters at the same time in seires. I have about 9 of them on a couple of my phones in the house and it doesnt bother it at all. Is that 6.0 engine a deisel? If so then it sure cant be ignition noise could it? If it is a gas engine then you might want to start eliminating posibilities such as a ground loop. Try grounding the return wire of the radio to different places or even try a diferent V+ .Sounds like a good system though. I use a wilson 5000 myself...Eddie
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Dx431
Posted on Saturday, June 22, 2002 - 1:47 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

First of all, where do you have the ant. mounted?

Second, run the negative wire to the bat. also.

Those new vehicles are notorious for fuel pump noise. I have been told by a tech friend of mine that putting a filter inline with the fuel pump will help. Just a few things to try. Hope this helps....
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Roadhazard35
Posted on Saturday, June 22, 2002 - 9:42 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Thanks for responding. This is a gas engine (6.0 liter) and the truck has a service bed on it with a full metal shell which is about seven feet from the gound. The Wilson mag is on the top front of this shell. I have an excellent ground plane or atleast thats what I think its called. (no need for a pie pan. lol) I will add a second noise filter in the power line and run the ground to the battery as well. I will keep you posted of the progress. Thanks, Doug
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Ironmask
Posted on Sunday, June 23, 2002 - 8:33 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Doug,
I run the DX 959 also and bought a Magnum power line filter that works great.
One end will plug into the power port on the radio and the other ends [both pos. and neg.] are bare wire that you can attach any connectors you wish. The leads are long enough to reach the battery.
I second the idea that both leads must be hooked directly to the battery. The battery acts as a filter itself. Not RF but for general electrical flow.
I know that with one filter and hooked directly to the battery your setup will work.
Iron Mask
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bullet/151 southern Indiana
Posted on Monday, June 24, 2002 - 12:38 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

if you want to really kill that engine noise
go out and buy one of those car audio .5 to 1 farade capacitors run one inline to your radio and listed to the stations clearly.

this is much much more effective than those junky noise filters