"barett" wrote in message
...
I am causing TVI at the moment and I was told that if I insulated the
beam
from the mast and choked the coax just below the beam it would guarantee
to
solve my TVI problem and improve the efficiency of the antenna. What do
you
think?

It's a lot of work to drop the beam back down to ground level to do this.


"barett" wrote in message
...
When mounting any yagi beam to a metal mast, is it best to insulate the
boom from the metal mast?

Are there any benefits in insulating the boom from the mast or not when
mounting?

Thanks

It might be a good idea to drop the whole thing and make sure there is no
corrosion anywhere, even at the cost of replacing hardware and any rusty
masts. rust and corrosion can actually cause broadband noise and harmonics
that doesn't come out of the transmitter. Perhaps there is an issue with
your rotor?