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Old August 11th 07, 11:02 PM posted to rec.radio.amateur.antenna
Ralph Mowery Ralph Mowery is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 702
Default Rope instead of wire for guys


"Rick (W-A-one-R-K-T)" wrote in message
news

What do you all think of using heavy duty nylon rope instead of wire for
guys?

I have a Rohn 25G up 50 feet with a 2M/220/440 vertical on a 10-foot mast
on top of the tower. It is guyed at 30 feet with standard steel guy wire.
I was just up the top of it two days ago installing the vertical, and it
seems rock solid.

Now my next project is to put up a 3-element tribander, and while my guess
is it'll probably be OK without any additional guying, the paranoid in me
says "hey, bozo... put up another set of guys!".


You don't want to use the nylon. In a few years the uv rays of the sun will
weaken it. You want to use something made for guying towers. Phillystran
is on type. It is expensive.
http://www.texastowers.com/philly.htm
Has it listed.

Rohn recommends guying a 50 foot tower at the 23 and 45 foot levels. That
is for 3/16 inch steel wire and that cable is rated for about 4000 pounds.
You normally put about 400 pounds of tension on the guy wire. While most
towers will stay up with much less, you can never tell when an ice storm
will hit and a big wind at the same time unless you are in an area that
never gets ice.

You may want to go here and read up on towers.

http://www.qsl.net/n1lo/tower_ref.pdf