For what it's worth, a Ham 4 rotator does not mind being *stopped* once
in a while (a strong wind will stop a long boom yagi from being turned
by a Ham 4), and it does not have sufficient torque to damage most
towers and/or booms if they meet in the night, so I've never found it
necessary to go to great lengths to avoid contact other than marks on my
indicator boxes. It's wise to make sure that there isn't any feedlines
or control cables at the point of contact. A small rubber cushion
strategically placed might reduce ones worry about this.
Of course stronger rotators might require additional precautions.
On 4/29/2011 2:50 AM, John Lemay wrote:
> This might be a silly question, because I'm not familiar with the Ham IV -
> but how do you avoid having a senior moment and trying to rotate it too far
> John G4ZTR
> 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?
> Guy, N7ZG
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