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Re: [TowerTalk] AN Structures towers

To: john@kk9a.com
Subject: Re: [TowerTalk] AN Structures towers
From: Ira Lipton <wa2oax@toast.net>
Date: Sat, 20 Jun 2015 11:05:49 -0400
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
I had an LD80 erected by KC1XX about 7 years ago. It did require a lot
of concrete--I think the base dimensions are 11 X 11 X 6. No problems
with supporting several large stacked beams on a very windy hilltop
site.

I do notice that the tower takes on a bit of a list depending the
direction of the prevailing wind. If you look carefully at the
original photos supplied by AN, it's clear that there is a small space
between the ends of the vertical struts. Although I am not a
structural engineer, I believe the tower was intentionally designed to
shift slightly in high winds. I had all the bolts torqued after I
first noticed that the tower was slightly out of plumb, but it made no
difference.

Ira   WA2OAX

On 6/18/15, john@kk9a.com <john@kk9a.com> wrote:
> The Wayback Machine is very cool.  I have seen the featured HD-60 tower in
> Oranjestad, Aruba and it was super heavy-duty.  Incredibly it also held up
> pretty well to the salt spray that put holes in my Rohn 55.  They are very
> nicely made. My only concern would be how comfortable they are to climb and
> stand on.
>
> John KK9A
>
> To:   towertalk@contesting.com
> Subject:      Re: [TowerTalk] AN Structures towers
> From: David Gilbert <xdavid@cis-broadband.com>
> Date: Thu, 18 Jun 2015 17:27:57 -0700
>
>
> I put up an AN Wireless HD-70 in 2008 and it is a brute of a tower. I've
> been strapped to the top of it in 60 mph wind gusts with two relatively
> large Optibeam antennas on top of it and felt perfectly safe ... very
> little
> motion. You can see pictures of the assembly starting at
>
> http://ab7e.com/AB7E_Tower_Page_1.html
>
> The original AN Wireless website included links to many of their tower
> installations around the world. Some included pictures of the assembly
> process. The new website no longer has them, but the Internet Wayback
> Machine has them archived at
>
> http://web.archive.org/web/20090726205925/http://www.anwireless.com/photo.ht
> ml
>
> Hope this helps.
>
> Dave  AB7E
>
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