On Wed, May 4, 2016 at 5:44 AM, Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>
wrote:
>
> Prosistel and others use to provide an option called "torsionally
> flexible jaw coupling".
> You can see how it looks, at CN2R:
> http://cn2r.net/cn2r/Photo/Station/Installation/Yagi%20installation%2080/slides/80-160%20rotator.JPG
> It is the yellow stuff.
You say Prosistel used to have this option? Why did they stop offering it?
Seems like a good idea to me, especially how they implemented it as seen in
the photo you linked to. It looks like that scheme provides torsional shock
absorption without putting the full weight of the array on the rubber
coupling.
73,
Jerry
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