LF: Re: (Off Topic) PC mains filter for 136kHz interference

["Dave Pick" <g3yxm@wireless.org.uk>]

Jan-Martin.

Try changing one of the video settings such as frame rate of the monitor if
your video card allows. It is usually video/monitor that produce stable
carriers in the 136 band.
Alternatively just switch to a different resolution.
Prove it by switching the monitor off and leaving the PC on.

Dave G3YXM.


> Have a steady tone around 136.5kHz. It is definitely from my PC,
> and the level was much reduced when the frame aerial was moved out into
the
> garden, but still I must switch off the PC when listening on certain
> parts of the band.
>
> Wonder if somebody has any experience in building mains filters for the PC
?
> 73,
> Jan_Martin
> LA8AK (in JO38XC) tel.: +47-380-87178 (52660)
> http://www.laud.no/la6nca/LA8AK/