[RFI] N6CW TVI

[Kelly Johnson]

Jim Brown would suggest the bucket treatment: dunk the TV in a bucket
of water twice; remove once.  I think that's how it goes :-)

I have a similar, impossible to fix problem with my 13 year old
Mitsubishi.  No amount of toroids, filters, or whatever have been able
to completely eliminate the TVI on 80m.  I can run QRO on all other
bands, but on 80m I get TVI with as little as 50W.  No other TV in the
house has any issues on any band.  I believe that RF is getting into
the color burst circuitry directly through the case.  One of these
days I'll replace this TV.  Until then, I use 80m only after everyone
has gone to bed.


On 6/21/07, CatWhiskR at aol.com <CatWhiskR at aol.com> wrote:
> Guys,
>
> Thanks for all the suggestions. To answer some questions: The TV is being fed
> straight from a splitter direct into the set. I have bypassed the splitter to
> no avail. No extra stuff to cause problems. The splitter has been replaced.
> >From the splitter one lead goes to the effected TV and the other lead goes to
> the other TV (Panasonic, no problems), downstairs and as far away from the
> antenna as it can get, and to the cable network for the computers. No interference
> on any of that stuff.
>
> I have tried several different types of high pass filters on the TV plus
> several AC line types besides the toroids. I have plugged the TV into a different
> outlet fed from a different circuit. I have done a lot of TVI fixes over the
> years but this one seems to be impossible without getting into the TV itself to
> do experiments. I am not really interested in doing that. Been there, done
> that in the past.
>
> I think what points to the deficiency of the TV set itself is when I move the
> cable or power cord around, I can drastically change the TVI problem. This is
> even with my body shielding it or putting the cable cord next to the power
> cord. It gets better not worse. But it is a combination of body capacitance and
> cord placement. I cannot move away and have it stay good. And no, it does not
> change the problem by rotating the TV 90 degrees to the antenna. I will try to
> move the set to the other side of the room and see if that helps.
> Unfortunately, that is not a good viewing area.
>
> Maybe I just need to buy permanent press clothes and get rid of the iron.
>
> Terry/N6CW
>
>
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