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Re: [RFI] Fan Noise on Repeater

To: "rfi@contesting.com" <rfi@contesting.com>
Subject: Re: [RFI] Fan Noise on Repeater
From: "Jim Brown" <jim@audiosystemsgroup.com>
Date: Tue, 09 May 2006 05:37:08 -0700
List-post: <mailto:rfi@contesting.com>
On Tue, 09 May 2006 05:31:29 -0700, rrath@charter.net wrote:

> Will answer more after work.

I think you missed one critical sentence in Stu's excellent post. 
I'll repeat it. 

"A few questions for you to help better understand the problem"

These are questions for YOU to think about -- they focus on the 
possible mechanisms whereby the noise could be getting into your 
system. It could be RF, coupling into the antenna or feedline, or it 
could be baseband noise coupling into the repeater through its audio 
and power supply circuitry. It could be the fan generating the 
noise, its power supply, or its controller. 


Jim Brown K9YC

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