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Re: [RFI] Ethernet Extenders

To: RFI List <rfi@contesting.com>
Subject: Re: [RFI] Ethernet Extenders
From: Martin AA6E <aa6e@ewing.homedns.org>
Date: Mon, 25 Jun 2007 12:51:17 -0400
List-post: <mailto:rfi@contesting.com>
Yes, but he said he had the problem with a 5W power level into a dummy 
load!  Furthermore, all the long wiring is underground. That indicates 
something other than RFI, I'd say.  Maybe a computer/software problem or 
something extraneous like a marginal data connection, which could be 
aggravated by grounding problems or whatever.

73 Martin AA6E

Jim Brown wrote:
> On Mon, 25 Jun 2007 11:03:48 -0400, Martin AA6E wrote:
>> However, you might want to seriously look at 
>> your system grounding. 
> The problem is only on 40M and 30M. 
> This tells us that it is NOT a grounding problem, nor is it 
> related to noise or the grounding between buildings. The most 
> likely cause is that some wiring is acting as antenna and picking 
> up HIS transmitter. The obvious culprits are the 1,000 ft wire and 
> the power supply at either end. I also wouldnt rule out the 
> cables connecting the extender to his rig, other networking box, 
> etc. 
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