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Re: [RFI] Motherboard RFI

To: rfi@contesting.com
Subject: Re: [RFI] Motherboard RFI
From: K8TB <k8tb@bosscher.org>
Reply-to: k8tb@bosscher.org
Date: Sat, 02 Jan 2010 13:36:04 -0500
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
Peter, is the noise reduction caused by your fingers conductively 
touching the caps, or by downward pressure? If the later, use an 
insulated alignment tool and press down on different areas of the MB. 
Maybe there is a shield that is loose, or a MB to ground screw. Tough to 
find, but see if it is you electrically touching the top of the caps, or 
physical pressure.

    tom bosscher K8TB

Peter Laws wrote:
>  I noted
> an odd thing.  With COM1 -- the noisiest -- connected, I could reduce
> the noise by pushing on the top of some of the caps.  OK, odd.  Am I
> adding capacitance?  I pushed on other things, potentially conductive
> and not ... and got the same.

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