This is like a trapeze artist wondering if he should work without a net.
This idea is flawed from the get-go. A SELF supporting tower is just that.
It is not designed to be guyed and should not. If you get a warm fuzy
feeling about guying the tower, that it is ok since you are overloading it,
you should re-think that. That being said the 80% rule applies to guy
points be laid out at a distance of 80% of the total height of the tower,
the antennas AND the mast above the tower. If you have a 10ft mast out of
that tower you have a total height therefore of 90ft. Guy points for a
GUYED tower would start at 72ft. I don't know much about Universal Tower. I
would call them and ask them what they think. I'd bet they'll talk you out
of it. Good luck in any event. - Mike
One more post script to this. I think in my humble opinion, that this tower
being aluminum may also weigh highly in the BETTER NOT column. You may live
in a very temperate climate with soft breezes and gentle swaying palms but
this just does not sound like a good idea to me.
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com]On Behalf Of Dennis W0JX
Sent: Tuesday, November 21, 2006 10:39 AM
To: towertalk@contesting.com
Subject: [TowerTalk] Guying an Aluminum Tower
Looking for a recommendation re guying an 80 ft Universal Aluminum
self-supporting tower. It is comprised on 30, 26, 26, 22, 22, 18, 18, and 14
inch sections. Currently a TH6DX is on top. I have a TH11 to replace the TH6
and I also want to add a 2 el short
Forty. That will overload the current tower so guys are necessary.
The usual recommendation is to guy out 80% of the tower height. However, I
have some property limitations that make doing that very difficult. Given
that it is a
self-supporting tower, can I come in a bit, say 70% of height and still
get guying advantages?
I also wonder about the possibility of guying to the bases of some very
big, strong
trees at the perimeter of my property. Any suggestions?
73, Dennis W0JX
---------------------------------
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