[TowerTalk] Rotator mast mount

[K8RI on TT]

On 4/29/2011 12:25 AM, 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.

I would strongly suggest a thrust bearing be mounted above the Ham IV 
even though side mounted.  The SteperIR would be a heavy load on the 
rotator at the top of a tower, let alone on top of a 4' mast to add 
leverage.

73

Roger (K8RI)
>
> Any thoughts?
>
> 73,
> Guy, N7ZG 		 	   		
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