Hi Dick,
Unlike K3CB's recent experiences with the catastrophic failure ofboth of his
Heights crank-up towers (one in dead calm weather and the other in light 30 MPH
winds), the collapse of the Heights tilt-over tower was the direct result of an
inexperienced tower owner significantly exceeding the maximum dead weight
specification.
I suspect he isn't alone in failing to appreciate the importance of not
exceeding the dead weight specification for tilt-over towers.
73
Frank
W3LPL
---- Original message ----
>Date: Thu, 14 Aug 2008 16:40:33 -0600
>From: "Dick Williams" <k8ztt@mho.com>
>Subject: Re: [TowerTalk] Heights Towers Aluminum??
>To: <towertalk@contesting.com>
>
>I have seen several interesting comments on the reflector concerning Heights
>Alum towers; and in fact, I posted a couple myself.
>
>As I mentioned in a previous post, I have three of them and they all tilt
>over in the center (80 ft towers with the fold over at the 40 ft level).
>
>Obviously, weight is a concern, you can't put 400 lbs of antenna and
>acessories on the top and expect it to work.
>Alum masts certainly help; in fact I have a nice 20 ft, 1/2 inch wall one
>sitting on the ground that I am not using right now (150 bucks picked up).
>
>As far as size, I have not found that to be a problem (just weight). I
>put the antenna together (or take it down to work on with the boom parallel
>to the ground (elements vertical). If the elements are too long, I just
>start removing element sections as I lower it down until the boom is low
>enough to work on.
>
>It is too bad that Glenn Martin Engineering does not produce the Voyager any
>more. It is the similiar to the Hazer except it is on a external track on
>the side of the tower. I have one on a 120 ft Rohn tower. Have a Force 12
>Mag 620/340N on it with a M2 R2800 rotor. Works great; brings the antenna
>right down to the ground ready to be worked on when needed. And all it
>takes is a 1/2 inch electric drill to raise and lower it.
>
>All said and done, I like the Heights towers and the Voyager system for
>"ground level" antenna work.
>
>Dick K8ZTT
>
>
>
>_______________________________________________
>
>
>
>_______________________________________________
>TowerTalk mailing list
>TowerTalk@contesting.com
>http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|