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[RFI] Computer monitor RFI

To: <rfi@contesting.com>
Subject: [RFI] Computer monitor RFI
From: Swilsonac6@aol.com (Swilsonac6@aol.com)
Date: Sun, 26 Dec 1999 02:19:02 EST
I just got a 19 inch Veiwsonic monitor to replace my 15 inch NEC multisync 
4FGe that I have been using for the last few years. I get S5 - S8 noise every 
75 - 77 KHz (this can be changed by changing the monitors refresh rate but 
the problem remains).  Thinking it might be this particular monitor I 
switched it for a new NEC V90 19 inch monitor with no real change. The 
interference seems to be coming from the monitor itself.  If I turn off the 
monitor with the computer running as normal the noise goes away.  Seems to be 
considerably less when using DOS programs.  No amount of ferrites or toroids 
on AC line or video cable make any difference.  Moving the monitor away from 
the receiver helps but the problem persists in any reasonable distance from 
the operating position.  The ground floor station has a good RF ground system.

The large viewing screen is very addictive
Have gone back to my 15 inch NEC but miss all that space for extra info
Has anyone had a similar problem and have a solution ??
Considering trying a flat screen LCD monitor but they are kinda expensive

Tnx for any input,

Steve  AC6DR

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