[RFI] computer screen rfi
jim at audiosystemsgroup.com
Fri Dec 23 03:30:59 EST 2016
Two possibilities. 1) Direct radiation from the computer or the display.
2) Radiation from the cables connected to the computer or the display or
Easy fix for #2 -- see k9yc.com/RFI-Ham.pdf and the applications note on
k9yc.com about killing receive noise. Multi-turn ferrite chokes on the
cables. No easy fix for #1 -- it's a design defect of the
noise-generating product. You've got to junk one or the other, depending
on which is the culprit.
73, Jim K9YC
On Thu,12/22/2016 11:39 PM, Kostas SV1DPI wrote:
> Hello to all and Merry Christmas
> We have a problem in my club's station. When I turn on the computer's
> screen everything is ok in our Kenwood 950. When I run VE7CC's cluster
> program I can see 3 s-units noise. I thought that it was because of
> the white colour but this does not happen if I open painting which has
> also a white colour as background. Any ideas where is the problem?
> ...73 de Kostas SV1DPI
> (One of SZ1A-EP6T)
> RFI mailing list
> RFI at contesting.com
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