[TowerTalk] Wire antenna in trees? (Patrick Greenlee) (Kelly Taylor)

[Grant Saviers]

Yes, and after a year or two in the sun the nylon rots and flakes off 
and changes the RF length a bit with less insulation thickness.

For me the DavisRF polyethylene insulated copperweld stranded steel is 
the Cadillac solution. It survives coastal environments.  As good but 
much cheaper is bare aluminum electric fencing wire 9 or 12 1/2 ga, buy 
it 1k ft to 1/4 mile at a time.  Easy to kink so I use it for antennas 
and elevated radials that go up and stay up.  1/4 mile of 12 1/2 ga is 
$60 at Home Depot.  500# break.

Grant KZ1W

On 8/6/2017 9:30 AM, David Gallatin via TowerTalk wrote:
>      
> THHN is in no way meant for use as exterior antenna wire. The nylon (N) coating is thin and stiff.
>
>
> Sent from my Boost Samsung Galaxy S®4
>
> -------- Original message --------
> From: john at kk9a.com
> Date: 08/06/2017  11:06 AM  (GMT-05:00)
> To: towertalk at contesting.com
> Subject: Re: [TowerTalk] Wire antenna in trees? (Patrick Greenlee) (Kelly
>    Taylor)
>
> What is the advantage of this wire over THHN?  Flex-weave has hundreds of
> copper strands, each strand is very small diameter.
>
> John KK9A
>
>
> To:	W1TR at yccc.org
> Subject:	Re: [TowerTalk] Wire antenna in trees? (Patrick Greenlee)
> (Kelly Taylor) (Jim Brown)
> From:	Mickey Baker <fishflorida at gmail.com>
> Date:	Sat, 5 Aug 2017 11:39:01 -0400
>
> Here in Florida where high winds are fairly common, I use the Davis
> FlexWeave insulated wire and, in the case of loops, "float" the wire,
> allowing it to slide through insulators at the corners. I terminate it at
> the ends with dipoles and use 5/16" UV stabilized Dacron line through
> pulleys to weights keeping it taught. When the trees I use as supports
> sway, the weights go up and down, keeping a standard load on the wire and
> moving the friction point a bit to avoid single point wear.
>
> It has been up over two years now, gale force winds on a number of
> occasions and no failures! (Knock wood.)
>
> Tough wire. Same as or similar to Wireman Silky.
>
> 73,
>
> Mickey N4MB
>
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