K8RI wrote:
>You have to remember that a deep catenary in a high mass guy is the
>equivelant of stretch as far as movement of the tower is concerned.
>
>
Very good point, Roger. My comments were in response to the discussion
about *other* types of wire rope vs. the conventional EHS we use -- all
of which I would treat as "high mass" guys. I wasn't attempting to make
a comparison of Phillystran vs. EHS.
>The important items are how far does the tower move
>
Absolutely!
> Grab a properly tensioned EHS line out about 10 feet from an anchor and pull
>up and down on it. You should be able to get a resonant movement going on
>towers of a 100 feet or so. This should result in sympathetic movement in
>the other guy lines.
>
>
Agreed. In fact, isn't this the "officially approved" way of removing
ice and snow from one's antennas?.... :-)
Bud, W2RU
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|