[TowerTalk] [Tower Talk] Anti-climbing technology
Gary J - N5BAA
qltfnish at omniglobal.net
Tue Jan 21 15:26:42 EST 2014
Tall chain link with razorwire at the top like you see around utilities and
HCARC Secretary 2013/14
From: Larry Loen
Sent: Tuesday, January 21, 2014 11:39 AM
Subject: [TowerTalk] [Tower Talk] Anti-climbing technology
As some may remember, I have a remote shack. I'm not there a lot,
obviously. So, the site has to basically "protect itself" when I'm not
Accordingly, compared to some here, I have to seriously consider some sort
of anti-climbing technology for my tower.
I should have done this lone since, but I see a lot of problems:
1. I am having trouble finding vendors that make anti-climbing panels. A
vendor I've worked with on other things, emailed me and admitted he's
stopped making them -- too custom apparently to bother with. They would
have to resist removal without interfering with tower raising and lowering
-- a neat trick.
2. Another contractor I've worked with suggested I surround the tower with
cement block, festooned with wrought iron points on top. That would work
pretty well, except it is very expensive and it would have to be designed
carefully not to interfere with my tower tilt-over and my NN4ZZ tilt
plate. And, I'd have to have a big gate, making it a questionable
improvement overall compared to ordinary chain link fence which is probably
3. My Force 12 6BA already has tight tolerances when I tilt over; two of
the elements, on either side of it, barely clear the retracted tower's
4. A wall that should be about 8 feet high plus spikes also has to be
wholly outside of the tilt over "foot print" as it lowers in 3 dimensions,
including the antenna tilting.
5. A European technology I've seen might actually be a better solution, if
I could find it. It basically would be a series of downward sloping spikes
that one would attach at, say, about 11 feet up and so be something the
erstwhile climber could not get around. In my case, it would have to
include an open ring and basically be an extra standoff for the coax and
stuff. I like this idea, but I would have to get on a ladder to install it
and then take it down (see clearances above) before every tower lowering.
6. The other scheme I've dreamed up is chain link with really huge gates
that swing entirely out of the antenna "sight lines" on lowering.
Ideas on this?
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