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Article #1516

supervga monitor sensitive to RF noise

#1516
From: Richard Reiner
Date: Sun, 02 Aug 1992 22:38
24 lines
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My supervga monitor seems quite sensitive to RF noise.  An
electric fan in another room, and even FPU activity in the
system unit next to it (which uses a Cyrix 8D387, which goes
into sleep mode when not in use), produces small but noticable
bits of noise and distortion on the screen.

I'm a software guy, and more or less a hardware idiot, so I'm not sure
what I can do about this (or even if it really is an RF problem).  I
see that there is some kind of filter or ferrite core or something on
the monitor's video-in cable; can I beef that up somehow?  What parts
do I need, and what do I do with them?  Would it help to put some kind
of filter on the monitor's power cable as well? (it is already powered
through a power bar that is supposed to do some slight filtering)

Any information will be greatly appreciated.

Thanks, 

Richard
-- 
Richard Reiner........rreiner@nexus.yorku.ca........416-538-3947

Learning, n.  The kind of ignorance distinguishing the studious.
  -- Ambrose Bierce, _The Devil's Dictionary_.
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From: rreiner@nexus.yorku.ca (Richard Reiner)
Subject: supervga monitor sensitive to RF noise
Message-ID: <rreiner.712795101@yorku.ca>
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Organization: York University
Date: Sun, 2 Aug 1992 22:38:21 GMT
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