On Tue, 21 Sep 2010 11:01:48 -0600, W4ZW wrote:
>I just received my 1000 spool of flex-weave
My antennas are mostly up 100-120 ft in redwoods, douglas fir,
and madrones. I have had multiple failures of flex-weave in
antennas hung in trees and hung from towers. Indeed, virtually
every antenna I have ever built with flex-weave has failed
mechanically at points of connection.
Your situation will put a LOT of stress on a wire antenna when
the wind blows. Anything but the most robust antenna
construction and components WILL fail. It is also CRITICAL that
you rig a moving weight on one end of every span. Any wire
without that moving weight (or other suitable tensioning device)
will eventually fail, and probably in the first good storm.
My favorite antenna wire for this sort of use is ordinary #10
THHN house wire or solid bare #8 copper. There are several good
ways to rig weights. Some guys have used window weights. I use a
6.5 gal water jug filled with dry sand, which works out to about
95 lbs.
Take a look at my webpage for some specific suggestions on
hardware for wire antennas. See the pdf on Antennas for Limited
Space.
http://audiosystemsgroup.com/publish.htm
73, Jim K9YC
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