|[AMRadio] Antenna tuner info|
w5jo at brightok.net
Wed Jan 10 15:27:05 EST 2007
Brent, nylon rope will withstand quite a but of UV. That
black stuff they sell is a bit better, but small nylon is
locally available for me, so I used it to guy the vertical
portion of my inverted L. It has been up two summers and I
can't see any deterioration at all.
Almost all packages of rope have a chart on back that gives
information about its ability to withstand various elemental
conditions. Check the package and one with at least 4 out
of 5 stars for UV will do fine.
I do all I can to keep anything metal as far away from high
current and voltage points on my dipoles. Then I be sure
the ends of the dipole are almost as high as the center.
Those high voltage points will induce a lot of current into
adjacent obstacles including the ground, distorting the
pattern and reducing radiation efficiency.
>I think you could get away with it if you used a few
> feet of rope, or a few long insulators, but I really
> don't like the idea of having all that metal
> close to the antenna.
> Good rope lasts 5 years or so, and is not expensive,
> but I was wondering if the 'special' stuff they sell
> for radio is any better....
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