[Towertalk] 20 Meter J Antenna and Noise

[dan hearn]

Hi Bob: All devices which use a remote control to turn them on and off
have an internal IR receiver operating and waiting for the IR from your
remote to turn the rest of the set on. Some of them use a switching PS
which can radiate interference. Usually the line cord and house wiring
act as an antenna to radiate this noise. I would first try a toroid with
the line cord wrapped around it placed near the set cord entrance. Radio
Shack sells a suitable core for this purpose. GL, Dan, N5AR

Bob Farkaly wrote:
> 
> Please excuse a slightly off-topic post.
> 
> While waiting patiently for my upcoming battle with the City of Poway,
> CA (Poway does not recognize PRB-1), I put up a sloping "J" antenna for
> 20 meters. It works better than I would have expected (worked the ZL7C
> expedition with 2 calls). Anyway, I found my noise level at S9+10.
> Sounded like constant AC line noise. First, checked outside (for about 5
> minutes) without finding a possible source. Checking the in-house
> circuits, I found the Sony KV-35V68 television in the family room to be
> the culprit.
> 
> The noise is there with the television power switch off or on. The act
> of unplugging the appliance reduces the 20 meter band noise level from
> S9+10 (which I cannot live with) to S2 (which I can live with).
> 
> Searching the Web (with Google) gave me no help. So I'm turning to my
> fellow TowerTalkians for help.
> 
> Any advice on how to tame a Sony TV would be welcome.
> 
> =============================
> Bob Farkaly, K9RHY
> Poway, CA 92064
> =============================
> 
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