John, I guess the coupler also provides the lateral forces to keep the
bottom of the mast centered in the tower?
Thanks for the input. From the responses here it does seem that it's
popular among the homebrew crowd. Good to know.
So far I've only built one rotator:
http://photo.danzimmerman.com/webimage/rotator_lg.jpg
Not exactly HF ready ;-) Used it to rotate some army surplus
fiberglass masts holding some VHF antennas at an apartment:
http://www.n3ox.net/projects/antennas/VHFcontest2_lg.jpg
73,
Dan
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