[RFI] 20 Meter Noise Level

Fri Mar 13 07:35:55 PDT 2009

Well, you pretty much proved it is the tv... unless maybe you have it on a
ups that gets noisy when it is loaded down.

The easiest thing to fix is if it is from the line cord, add some ferrites
or a line filter to see if that helps.  If it is radiating straight from the
case then you can try wrapping it in aluminum foil like my tv is.

David Robbins K1TTT
e-mail: mailto:k1ttt at arrl.net
web: http://www.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net

> -----Original Message-----
> From: David C. Hallam [mailto:dhallam at rapidsys.com]
> Sent: Friday, March 13, 2009 13:57
> To: RFI List
> Cc: Shultz, Roger
> Subject: [RFI] 20 Meter Noise Level
> Is it possible that my high noise level on 20M is related to my TV.  I
> have an older Mitsubishi big screen projection TV in the living room.
> It is located directly under my 20M antenna.  Most of the time I
> experience a S5 to S6 noise level so weak signal are out of the
> question.  This morning I was listening on 20M and had the usual noise
> level.  My wife went out for the day.  I turned the TV off noticed the
> noise level dropped to S1.  After turning the TV off and on several
> times, it seems the noise level is directly related to the TV.  Is it
> possible and if so, any ideas how to tame it?
> David
> KC2JD/4
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