[Elecraft] LCD TV Causing RFI

[ab2tc]

Hi Brian,

Try #31 ferrite clamp ons on on leads coming from the TV starting with the
power cord. They can be found in small quantities here:

http://www.mouser.com/catalog/catalogUSD/642/952.pdf

The 0.51" and 0.72" ID ones will allow several turn through which is usually
necessary. The 0.72 one is huge and heavy but works well.

AB2TC - Knut



Brian - N5BCN wrote:
> 
> Hi,
> 
> I have a Samsung 46" LCD TV that is causing RFI on the 20m PSK calling
> freq (14.070).
> 
> My station setup is a K2 powered by an Alinco DM-330 switcher.  The
> interference shows up in the waterfall display; it's about 1000 Hz wide
> right on 14.070 (the coincidence is weird), doesn't move, and doesn't show
> up anywhere else that I've found thus far.  It's not overwhelming; I can
> still decode signals through it.  It vanishes as soon as the TV is turned
> off.
> 
> The offending TV is not close to the shack: TV is on the first floor,
> shack on the second floor (on the opposite side of the house), antenna in
> the attic.
> 
> The TV is using cable with a DVR.
> 
> It's one of those things that I "can live with," but would prefer solving
> the problem.  The TV was purchased in Feb 2009, so it's too old to return,
> too new to replace.
> 
> As always, thanks for any suggestions.
> 
> N5BCN - Brian
> 

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