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Re: [TowerTalk] Rotator mast mount

Subject: Re: [TowerTalk] Rotator mast mount
From: Mike Cizek W3MC <>
Date: Fri, 29 Apr 2011 07:49:35 -0400
List-post: <">>
Hello Guy -

You don't want a mast mount for your rotor.  Use a couple pieces of
angle coming out from a corner of the tower and mount it directly on
them.  It's best to do it a a section joint using heavier horizontal
braces; G22, G23 G24 - and use a pair of G25s for your rotor mount.
Put another one at the next higher section joint, and mount your
thrust bearing there.  I can send you pictures if you like.  You will
get almost 300 degrees of rotation this way.

If you really want a lower mast mount for the Ham IV, I have a couple
sitting here I will gladley sell - but I don't recommend it for this.


Mike W3MC

On Fri, Apr 29, 2011 at 00:25, Guy Molinari <> wrote:
> Anyone have any recommendations for mounting a Ham IV atop a 2" mast section. 
>    I'm building a standoff mount on one of my towers for a 3 element SteppIR. 
>   I've got some 2" angle iron that I'm going to bolt in place of 2 sets of 
> steps on my AB-105 tower.   This will allow for about a 4' piece of mast held 
> about 10-12" from the tower.
> Now I just need to track down a mount for the Ham IV.   I should get about 
> 100 degrees or so of azimuth.   Together with the 180 feature of the SteppIR 
> it should do the trick for JA/CA mults and for keeping the US off my QRG when 
> I've got the big boys pointed at EU.
> Any thoughts?
> 73,
> Guy, N7ZG

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