Jamie,
I think I have one of these. I got it from The Mast Company. Mine is the
ruggedized version that comes in a large PVC case. It was obtained to take
on the Falklands (VP8WWW) trip last year (no trees there). However, we
found it was not rigid enough to hold up a dipole. We used plastic
tie-wraps to hold the sections tightly together and prevent them from
collapsing. Guying seemed to be fruitless. In the end we took a set of the
military aluminum poles with guy rings. This worked quite well. See photo
at http://www.gtdx.com/dxpeditions/2004/Photos/mosleyrainbow.jpg.
73, Keith NM5G
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of James C. Hall, MD
Sent: Saturday, August 13, 2005 5:05 PM
To: towertalk@contesting.com
Subject: [TowerTalk] Wonderpole mast guying
Hello:
For our VHF hilltop efforts, we use a 30? fiberglass (polytube) Wonderpole.
This extends vertically with tighteners every 7-8?. This is really very nice
for portable operation and was described in the June CQ magazine for VHF
Hilltopper action. My question is how to fabricate a rotating guy ring for
the 1 ¼ ? section. The top section is ¾? and then 1? and so forth. I want
to guy at the ¾? and 1 ¼? sections. The problem comes in that you can?t get
a ring to go over the tighteners - something has to wrap around the pole
section. I envision something like what is used for an AB-577 military mast
in the center guy ring which wraps around a junction. So far I have the
idea of a PVC flange for electrical conduit cut in half along its axis and
wrapping it around the tube with a hose clamp holding it together. A piece
of plastic or rubber hose slit along its length and held in place under the
flange with another hose clamp would maintain the guy position on the pole.
The guys can be attached how ? I thought maybe a rudimentary ?thimble?-like
setup with some heat shrink tubes around some 3/16? Dacron rope tied around
the top of the flange, but that seems clunky.
Anybody have any (brilliant) ideas ?
73, Jamie
WB4YDL
_______________________________________________
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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TowerTalk mailing list
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http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
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
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
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