[TowerTalk] Tilt antenna questions

[Eugene Jensen]

I feel you would be better served by cutting and doing the machine shop
work, I would have a 1-5/8 stock cut to the length needed and both ends be
threaded OD and make two 1-5/8 to the size needed also threaded ID and the
OD machine to slip back into the cut boom, and then bolt the mast though the
adaptor's in at least two places on both ends. I also would put a roll pin
though the threaded parts. Sure keeps things from moveing and allows one to
take apart later if one has to change a rotor. 73's Gene K2QWD
-----Original Message-----
From: owner-towertalk@contesting.com
[mailto:owner-towertalk@contesting.com]On Behalf Of K7LXC@aol.com
Sent: Sunday, June 24, 2001 1:54 PM
To: towertalk@contesting.com
Subject: [TowerTalk] Tilt antenna questions


Howdy, TowerTalkians --

    Here's a question that has never been asked on TowerTalk before! They're
pretty rare but nonetheless pop up occasionally.

    What I need to do is to tilt a KT34A from its normal horizontally
polarized position to a vertical position. The antenna will be mounted on a
UST crank-up and the antenna needs to be vertical when the tower is down so
the antenna can be "stored" in a vertical position when it's not being used.
The problem is due to the fact that the antenna hangs over the neighbor's
property and the neighbor has asked that it not be over his property when
it's not being used.

    Okay. So what I've got is a moderately small triband antenna with a 3"
boom. I want to use the Yaesu G-550 elevation rotator which has a boom
capacity of 1-5/8" (1.625"). The options as I see them are: 1) convert the
3"
boom to a 1-5/8" one or 2) put some sort of smaller boom splice in the KT34A
so that the part of the antenna at the elevation rotator will fit thru it.

    Option 1 means that the 3" KLM insulated Lexan element brackets will
either have to be scrapped or adapted to the smaller boomsize. Any ideas how
to do either one?

    Option 2 means some 'cut-and-hack' work on the boom plus some machine
shop fabrication but lets me use the rest of the existing boom and hardware.

    Wadda ya think? Can you think of any other options? All input
appreciated.

Cheers & tnx,    Steve    K7LXC
Tower Tech

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List Sponsor: Are you thinking about installing a tower this summer? Call us
for information on our fabulous Trylon Titan self-supporting towers - up to
96-feet for less than $2000! at 888-833-3104 <A HREF="http://www.ChampionRadio.com">
www.ChampionRadio.com</A>

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FAQ on WWW:               http://www.contesting.com/FAQ/towertalk
Submissions:              towertalk@contesting.com
Administrative requests:  towertalk-REQUEST@contesting.com
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