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[TowerTalk] Help with beam rotation

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Subject: [TowerTalk] Help with beam rotation
From: (Rick Bowden)
Date: Fri, 12 Mar 1999 12:35:44 +0000
I agree 100% much easier to realign the antenna then to have to re place the 
Rick KI5VZ
Rick's Tower Service
(972) 539-0295 wrote:

> In a message dated 99-03-09 15:44:09 EST, writes:
> << I have a TH7 at 40 feet in a Ham IV. I am on the top of a hill at 2000 feet
>  ASL. I get a lot of high winds. The beam gets off the correct heading in the
>  strong winds.
>  My question - should I pin the mast to the rotator to stop the rotation? I
>  am not sure if I would cause a problem to the rotator.  >>
>       My suggestion is to NOT pin it. The problem is that those wind forces
> will find the next weak link in the system; in this case, either the ring gear
> or brake. It's much easier and cheaper to realign the antenna occasionally
> than swap/repair rotators.
>       The neck of the T2X has a hole that you can use to pin the mast if you
> choose - the Ham IV does not. The Ham IV also uses smaller U-bolts so it
> doesn't have the holding power that a T2X does.
>        What can you do? You could try some thin rubber material between the
> mast and clamp although I think that some TowerTalkians have found this to be
> unsatisfactory. One fix that I think did work was to apply some ScrewGrab
> where the metal to metal contact is. ScrewGrab is a marvelous tool - it's got
> little diamond-shaped material in suspension. It'll increase friction by 400%
> and is VERY usefull for removing stripped screws and nuts. Just put a drop or
> two where you need the friction and your problem will be solved. It's five
> bucks for a tube from Champion Radio Products -
> Cheers,   Steve   K7LXC
> Champion Radio Products
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