On Tue, 24 Feb 2004 18:36:09 -0600, Chauney Baker
wrote:

Paul wrote:
Hi,

I would like to reposition my 2M/70cm Vertical (Diamond X50) to a higher
position.

One option is to mount it above the TV aerial, I understand that the signal
radiation below the antenna is very small, does anyone have any experience
of a similar setup?

If so what kind of distances would you suggest between the antennae?

Obviously my main concern is TVI and poorer performance from the Diamond due
to its close proximity to the TV aerial.

I'm using RG-213 for the Diamond and normal coax for the TV.

Any help or suggestions would be appreciated.

Cheers,

Paul


hey there. My sugesstion is the higher you can mount the vertical above
the tv antenna the better. Persinally I would mount the antenna a min.
of 3-5 feet above the TV antenna. Just rember that the higher the
antenna the more loss in the coax. I would also strongly suggest that if
you do mount the vertical above the TV antenna that you invest in some
TVI filters. I think radio shack or you local electronics part store
should have some in stock. ( They sould be fairly cheap. $3-$5 each or
something like that)

KD5JBK
Chauncey Baker
EM 15
I agree with the suggested spacing - just buy a 5 foot section and
you're set, it should 'telescope' right into the top of what you have.
You may wish to consider a lower loss coax as well, the 440 side will
appreciate you for upgrading to something like LMR400 at something
like half or 2/3 your loss with the RG-213.
Howard