Since the TVI is only on 15M and without knowing the year and model of TV
set affected I would comment that older TV sets have a 21Mhz IF strip.
This may be why all other bands are TVI free,
Charles T Johnston - AB7SL
AB7SL- Ham Radio Pages
----- Original Message -----
Sent: Monday, February 14, 2000 4:05 PM
Subject: [RFI] RFI on TV while using dummy load
> I wonder if anyone has a idea on this one.
> TVI into the vidio of a TV set which is hooked up to a dish (EchoStar
> dbs system) transmitter on 15 meter band while transmitting into a
> dummy load, the worst seems to center on 21.158, and gets better as I
> move up the band. RF output 200 watts. All other bands ok on the
> dummy load.
> Moving the ac line cable to the radio makes the tvi worse and better
> depending on position. Taking the top cover off the radio makes the
> tvi get better
> Everything else is normal, no malfunctioning of the radio as far as I
> Strange but true.
> Will a line filter do the job?
> Anyone have any recomendations for line filters.
> Dale j.
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