[TowerTalk] Base mounted rotor=great idea

K4SB k4sb at bellsouth.net
Wed Apr 13 15:22:21 EDT 2005


> Friend here had one with KLM KT34 on top.  Antenna was rotated by long mast
> to rotator mounted at base.  No torque from antenna was transmitted to
> tower.  Worked flawlessly through several bad storms here in Houston area.
> Makes a great deal of sense.  Probably would make this tower viable
> for reasonable ham arrays.
> 
> n2ea

Jim makes a good point. And a neat trick which is probably only in the
minds of us old farts is to weld a motorcycle spring to the bottom of
the mast, and the other end to a short piece of mast out of the rotor.
Had a buddy do that hundreds of years ago with a big 3 element 40,
when you could probably count the number of 40 meter beams in the
world and come up with less than 50.

Provides anti-torque on stat and stop.

73
Ed



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