Steve - You might consider a tilt cradle design, such as used on the booms
for large beams, and a linear actuator.
----- Original Message -----
Sent: Sunday, June 24, 2001 10:53 AM
Subject: [TowerTalk] Tilt antenna questions
> Howdy, TowerTalkians --
> Here's a question that has never been asked on TowerTalk before!
> 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
> UST crank-up and the antenna needs to be vertical when the tower is down
> the antenna can be "stored" in a vertical position when it's not being
> 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
> boom to a 1-5/8" one or 2) put some sort of smaller boom splice in the
> 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
> 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
> Wadda ya think? Can you think of any other options? All input
> Cheers & tnx, Steve K7LXC
> Tower Tech
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