I heartily recommend Philystran. Once you compare the price difference, which
is small and the effort involved you will never use EHS again. Remember to
include all the insulators, clamps and thimbles required every time you break
up a guy and in comparing prices, put a cost figure on your labor installing
all those insulators and clamps and you will come out ahead dollar wise using
Philystran. And Philystran comes in sizes to fit any Ham antenna application
from Push Up poles to Rohn 55G.
Been there, done EHS, will never do it again.
Clint - W5CPT
----- Original Message -----
From: Donald Chester
To: towertalk@contesting.com
Sent: Sunday, November 25, 2007 8:14 PM
Subject: Re: [TowerTalk] Guy recommendations for push up pole
I once put up a couple of 50' TV push up masts (actual height 45'), with two
additional sections of 10' TV mast on top of that. They made very nice 65'
masts for a 160m inverted L, one for the vertical part of the antenna, and the
other to hold up the far end. The mistake I made was using "TV antenna" guy
wire. The stuff was 6 strands of galvanised steel, about 20 gauge. It seemed
strong enough, but it took it only about a year to completely turn to rust. I
think they made the stuff specifically to sell TV antennas. That antenna
lasted less than 2 years.
If I had it to do over again, I would have used single strand #8 or #10
galvanised steel fence wire, available at most agricultural supply outlets.
It's pretty cheap, and would have lasted for years. I broke the guys with
small ceramic "egg" insulators. It was easy to install them with the stranded
wire, but would not have been impossible with the solid wire, with the proper
tools.
But after that antenna failed, I replaced it with a quarter wave vertical
using 127' of Rohn 25, with all the proper hardware. That one has been up for
over 25 years now, and although it is becoming a little rusty, it is still
holding up well. I may have to re-guy it in a few more years, but when I do,
I'll use Big Grips instead of half a dozen clamps at every insulator. I aimed
for rf transparency up to 7 mHz and broke up the guys every 18', so I have over
100 insulators in the guy wires of that tower.
Don k4kyv
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