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[RFI] LCD Monitor Interference

To: rfi@contesting.com
Subject: [RFI] LCD Monitor Interference
From: Pete Smith <n4zr@contesting.com>
Date: Mon, 06 Sep 2004 18:06:48 -0400
List-post: <mailto:rfi@contesting.com>
Very interesting -- my generic 15" LCD monitor is completely quiet at HF, so far as I can tell, but today, I was listening to FM radio on a little clock radio. We are in a fringe area, so the signal wasn't very strong, but it was full quieting.

When I connected the signal cable to the monitor, semi-white-noise interference could be heard on the radio. Power down the monitor or shut down the computer, and the noise goes away, so I presume it is related to the minotor itself, rather than to the power supply.

This really isn't a problem for me, since I don't operate VHF, but I thought others might want to know. The monitor is a LiquidVideo, sold by Circuit City stores.

73, Pete N4ZR
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