Hi Jim. I'd make the switch to metal. I did a tram gig one time with rope,
then changed to wire rope and the difference was night and day. Don's
recommendation of 1/4" or 5/16" (he ought to know) is what I'd also
recommend, although I have always used 1/4" for everything I've done and
never had any problems - the biggest tram was a KLM 4-40 "heavy duty"
edition - the one with the quarter-inch thick boom. It weighed a lot. Went
up fine. The W6UE guys have since had that antenna down and up that tram a
couple times for maintenance.
At N5OT I use 1/4" EHS for this and just haul it over to a fenceline I don't
mow for storage, laid out flat.
----- Original Message -----
From: "Jim Idelson" <email@example.com>
To: "TowerTalk Post" <firstname.lastname@example.org>
Sent: Monday, August 16, 2004 5:59 PM
Subject: [TowerTalk] Tram Line Material
> For years, I've been using a heavy low-stretch rope as the main tram line
> tramming antennas up and down the 80 foot tower. It's worked well, but
> borrowed rope, and it may not be available for an upcoming project. I'd
> acquire the best possible tram line for this and other future projects.
> antenna will weigh about 170 lbs, and I'm thinking that the tram line
> a piece of wire rope. The max length will need to be about 130-140 feet.
> plan to put a fixed loop on the tower end, and I want to secure the lower
> at any point on the rope [depends on the antenna and how high it needs to
> 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?
> Jim Idelson K1IR
> email k1ir at designet.com
> web http://www.designet.com/k1ir
> See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.
> TowerTalk mailing list
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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