UHF interference
Submitted: Tuesday, May 13, 2003 at 20:01
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bozo
Hi guys, have just fitted a HI-6 ignition system to my duel fuel GQ and seem to have solved my tuning problems with the LPG but the unwanted side effect is interference on my uhf. Can anyone sugest any suppressor or another way of fixing the problem.
Reply By: Tuco69 - Tuesday, May 13, 2003 at 20:33
Tuesday, May 13, 2003 at 20:33
First the way that the unwanted interference is getting into the UHF needs to be established. Is it coming in through the positive power supply, the earth (negative) or is the aerial picking it up and coming in that way.
To eliminate the aerial - simply unplug the aerial from the UHF and see if the noise is still there. If it is then do away with as much (negative) earth wire as you can, Shorten the earth lead on the radio and secure it to a good earthed point close to where the radio is mounted. The shorter you can get the earth lead, the better. If this doesn't cure it then the positive supply is probably the source of entry and either a filtered lead or capacitor close to the radio may help. Make sure that the positive supply is direct to the battery and not from the vehicle loom or accessory circuit, and also try to keep the positive supply away from the ignition system that you suspect is creating the noise.
Tuco in
Cairns
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Follow Up By: bozo - Tuesday, May 13, 2003 at 20:48
Tuesday, May 13, 2003 at 20:48
Thanks Tuco, i'll look into that. I think that I did wire it into the original harness from memory.
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