[TowerTalk] Tilting Boom Design

[Kurt Andress]

Mike Wetzel wrote:
> 
> Can anyone point me to a picture or diagram that has a mast to boom mount
> that will allow the boom to tilt over so that the elements on the ends of
> the boom are accessible from lower on the tower?  I plan to have a 48' boom
> close to the top of the tower that I'd like to tilt and be able to reach an
> element on each end of the boom.  The tower is R55 with a stock flat bearing
> top plate, mast is 3" o.d.
> 
> Mike W9RE
> 

Hi Mike,

The PVRC mount shown in CH 22 of the ARRL Antenna Book does this.

But, I'd recommend that it not be left in place all the time. The
mast-to-boom offset creates a ton of torque when the boom is aligned with
the wind. If you're using a prop pith to turn it, it's probably ok.
Anything else, I'd make it a gizmo you take up there and mount in place
when you need it. IMO, doing that makes more sense than duncing around with
fetched up rotators.

-- 
73, Kurt, K7NV 

http://yagistress.freeyellow.com

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