Date: Sun, 6 Aug 2017 16:49:09 -0400
From: <john@kk9a.com>
To: "'Grant Saviers'" <grants2@pacbell.net>,
<towertalk@contesting.com>
Subject: Re: [TowerTalk] Wire antenna in trees?
<My question was what is the advantage of Flexweave over THHN. Both are 100%
copper, Flexweave has significantly more strands which makes it more flexible
but how much flexibility do you need. Is there a corrosion issue with so many
strands? Yes <THHN is not meant for exterior use, the outer nylon of THHN
flakes off in a short time however the PVC coating seems to last for years even
in a high UV environment. For decades I have used THHN for rotator wire. I used
to use stranded copperweld <wire for temporary dipoles. After many years the
strands started breaking so I replaced the wire and the newer copperweld and it
did the same thing after a year. Apparently the wire quality was worse than my
original and I quit using it.
<John KK9A
## The THNN wire that is available at the local home depot is solid copper,
not stranded. Comes in several colors. Never seen it in stranded.
I used RW-90, in both 10 and 8 gauge, stranded copper. That outer jacket is UV
proof, and is extremely tough. I believe its polyethelene beneath the black
jacket. You can get RW-90 in any gauge, at any electrical wholesaler.
The 10 gauge was $100.00 for a 300M spool. ..... 984 feet.
## Another option is alumoweld wire. Its stupid strong in 10 gauge. I have a
500 ft roll of it. Aluminum clad solid steel core. SW broadcast stations use
alumoweld for their curtain arrays.
Jim VE7RF
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