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Re: [RFI] 160 Meter Interference

To: Ford Peterson <ford@cmgate.com>
Subject: Re: [RFI] 160 Meter Interference
From: "Dale J." <dj2001@mn.rr.com>
Date: Wed, 6 Oct 2004 03:21:31 -0500
List-post: <mailto:rfi@contesting.com>
I had a signal on 75 meters which I traced to my eithernet cable going to a laser printer in the basement, about a 25 foot run. I unpluged the cat 5 cable from my router and the signal disappeared.

Dale


On Oct 5, 2004, at 19:41, Ford Peterson wrote:


Bill wrote:

I have eliminated my house as the culprit by shutting down the main breaker
and operating the radio off battery power. I have also asked my neighbor to do the
same thing which provided no clue either.

I had a switching supply on my LAN router that was giving me fits. So I'd smack it on the desk top (pretty hard I might add) a few times and the noise would go away (or at least detune it for a while ; ). Sure as heck it would return at the most inopportune moment, so I'd smack it up side the head a few more times. Replacing it with a linear supply seems to have solved the problem forever. But it occurs to me, do you have some device hooked to a UPS? Or the UPS itself may be a problem. With the interference so loud, it has to be close by.


Ford-N0FP
ford@cmgate.com


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