Actually, it's available in a number of sizes, and 5/16" is
popular for guying ham towers (although 3/8" is more common).
Strength-wise 3/8" rod is halfway between 5/16" EHS (11,000 lbs)
and 3/8" EHS (15,000 lbs).
--
Steve K8LX
Phil Camera wrote:
> If I may give a few minor corrections, the Polygon (that's what I've
> always have known it by) is actually 3/8 and has a tensile strength
> of 13,100# which is like 5/16 EHS. It's super strong stuff, UV
> resistant, and one purchases specially made guy grip ends from
> Preformed Line Products to attach the ends. Polygon (also the
> company's name) will one make a minimum 5000 ft run but will break up
> the run and ship individual lengths around the country (so y'all
> don't have to pick it up nor be in the same local). I highly
> recommend it and yes, material-wise two years ago it cost about
> $0.38/ft plus the shipping. It'll be shipped in bundled 8 ft
> diameter coils. You merely uncoil is and use a hack saw to cut it.
> Since it can be damaged, similar to Phillystran, the lower 15 ft or
> so of each guy should be EHS for physical protection. I'm guying a
> 120 ft tower and have had no problems; it's great stuff. Phil
> KB9CRY
_______________________________________________
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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