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Re: [TowerTalk] HF Mobile Info Query

To: TowerTalk Post <>
Subject: Re: [TowerTalk] HF Mobile Info Query
From: Jim Idelson <>
Date: Thu, 3 Aug 2006 07:48:47 -0400
List-post: <>
Don't jump to conclusions about the source of the noise without doing some 
testing. It's easy to suspect spark plug wires, but after spending money and 
time you may well find that they are not the issue. In my 1999 BMW, I found 
that the exhaust system, hung by rubber vibration dampers, was the primary 
radiator. I suggest you use a VHF handheld set to AM mode and roughly 150MHz 
with a simple "sniffer" antenna to scan the car and seek the highest strength 
of the noise. You may well find that it isn't under the hood. Grounding/bonding 
techniques often have the greatest impact.

Jim Idelson K1IR
email    k1ir at

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