On Mon, 09 Jan 2006 19:04:24 -0500, Vinnie S. wrote:

On 9 Jan 2006 15:12:53 -0800, "Jim Bradley" wrote:

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.


Jim,


I forgot to mention the A-99 is notorius for TVI. You might be better off doing
the 1/2 vertical dipole, and doing the RF choke balun Scott mentioned.

Vinnie S.

do you think getting the antenna outside and further away from the TV
would help. the base of the antron is really only like 10 feet from the
TV if you were to trave straight up. the mobile in my car does not
effect it.

Jim Bradley wrote:

do you think getting the antenna outside and further away from the TV
would help. the base of the antron is really only like 10 feet from the
TV if you were to trave straight up. the mobile in my car does not
effect it.

swap the tv that has tvi with one that doesn't and see if the problem
persists. that will guide you in the right direction.

From: (Jim*Bradley)
do you think getting the antenna outside and

further away from the TV would help.


Absolutely. The further (and higher) the better.

the base of the antron is really only like 10 feet
from the TV if you were to trave straight up.

Way too close.

the mobile in my car does not effect it.

Get it up and away.

do you think getting the antenna outside and further away from the TV
would help. the base of the antron is really only like 10 feet from the
TV if you were to trave straight up. the mobile in my car does not
effect it.

On 9 Jan 2006 18:01:11 -0800, "Jim Bradley" wrote:

do you think getting the antenna outside and further away from the TV
would help. the base of the antron is really only like 10 feet from the
TV if you were to trave straight up. the mobile in my car does not
effect it.


I have heard that the A-99 is bad for TVI. I think it's too close. Try what Jim
said. Then is that don't work, try using a horizontal dipole at the very top of
the attic.. Get is as far away as possibly.

Vinnie S.