"Jim Bradley" wrote in message
oups.com...
Ok here is the deal. At my brother house we have installed a base set
up. We have a mobile radio hooked up to an antron 99. The antron is in
the attic on the 3rd floor of the house mounted in a 22ft tall section
of the attic. The SWR is below 1.5 on all channels. everything is
stock. only one TV in the house is getting audio only interference
nothing else is getting any interference. This is clear as day when
ever you TX.

This happens with the TV muted or unmuted for that matter and even with
the coax unplugged from the back of the TV.

I just bought a B&W TVI filter off ebay in hopes that it might help. Do
you think it will? What else can we do? Please help...

thanks
Jim


Hello, Jim

There is enough rf getting into that unshielded television for the audio
section to detect and amplify it. Since removing the coax from the tv does
not change the problem, no filter on the transmitter is going to help. Your
SWR won't affect it.

If you have external speakers, I suspect that rf is being picked up by the
speaker leads and conducted back to the television where the audio section
is getting enough rf to detect and amplify it.

You might try a choke on the speaker leads near the television and see if
that helps. Before you try that, try disconnecting the external speakers
(if, indeed, you have them) and see if you get any interference running only
on the internal speaker (I'll bet you don't). If you don't, you'll know
that the interference is being picked up by the speaker leads. Should that
be the problem, see if you can substantially shorten the speaker leads as
they will become much less efficient at picking up rf.

Good luck; with the cheap stuff being made, you may need it.


73 from Rochester, NY
Jim