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[TowerTalk] Mounting Ham IV on top of pole

To: <towertalk@contesting.com>
Subject: [TowerTalk] Mounting Ham IV on top of pole
From: LOMAX1@prodigy.net (frank ayers jr)
Date: Mon, 5 Oct 1998 20:50:09 -0400
Hi all
I have a question about mounting a Ham IV. I have two towers currently used
for VHF/UHF. The method I've used to mount Ham IV's on those is by putting
the rotor about 10 feet from the top and using a bearing at the top. With
the rotor so far down I've never worried about axis stress. So far so good.
Now, for this winter, I want to stick up a Cushcraft A4S. I don't have time
or money for another tower this year. I do have another rotor with the
attachment on the bottom that allows mounting on a post up to 2 inches
(like a dupe of the top). Anybody have an idea whether putting the
tribander right above the top of the rotor and mounting the rotor on a pipe
would cause excessive stress on the rotor?
Hopefully next spring I'll have more tower up for the time being will it
work or am I asking for problems?

Frank
W2FCA

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