When I purchased my PC, I took a portable SW rcvr along and shut down
all nearby CRTs and listened to each of the CRTs I was looking at. Then
I bought the quietest one. It so happens that the quiet ones seem to
have some EMI design since they all had ferrites built in to the cabling
and heavy duty (probably shielded) cables. They are quiet enough
(except for one birdie around 21.0255) that I haven't needed to buy
better cables.
I did add ferrites to the keyboard cable and plug them into separate
outlet circuits from my radio equipment thru filtered surge suppressors.
73, de ed -K0iL
-----Original Message-----
From: rfi-bounces@contesting.com [mailto:rfi-bounces@contesting.com] On
Behalf Of Deni
Sent: Thursday, March 18, 2004 3:17 AM
To: rfi@contesting.com
Subject: [RFI] Quiet Shack PC Systems?
I'm always intrigued by the photos of other peoples shacks with the PC
and
monitor mounted right in among the radio gear.
I have a conventional tower and CRT monitor which creates nasty QRM in
my HF
receivers, I also have a laptop with TFT screen which is not too bad but
it's switched mode PSU/Charger is chronic anywhere near my radio.
I'm interested to know how others solve the PC / Radio interface and
maintain low interference levels.
73, Deni
F5VJC, GM3SKN
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