[TowerTalk] Tram Line Material

[k1ttt at arrl.net]

i use 1/4" ehs with big grips.  this gives plenty of strength and the big
grips let the pulley riding the wire go all the way to the top without
clamps getting in the way.

> For years, I've been using a heavy low-stretch rope as the main tram line
> for
> tramming antennas up and down the 80 foot tower. It's worked well, but
> it's a
> borrowed rope, and it may not be available for an upcoming project. I'd
> like to
> acquire the best possible tram line for this and other future projects.
> The
> antenna will weigh about 170 lbs, and I'm thinking that the tram line
> should be
> a piece of wire rope. The max length will need to be about 130-140 feet.
> I'd
> plan to put a fixed loop on the tower end, and I want to secure the lower
> end
> at any point on the rope [depends on the antenna and how high it needs to
> be
> trammed on the tower]. I'd like to be able to manage and store this line
> easily, too.
>
> What materials and termination methods do you recommend?
>
> 73,
>
> Jim Idelson K1IR
> email    k1ir at designet.com
> web    http://www.designet.com/k1ir
>
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