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Dave:
Some of the huge commercial/government system rotators have built in torsion relief in the form of some sort of springing, but I don't think the smaller Yaesu have such. I would really be concerned with that much slack, as the larger the swing is, the more inertia the assembly builds up to pound the rotator internals into dust. Plus, if that model rotator has a positive 'brake' like the HAM series, then you are in a heap of trouble, as the brake has definitely failed. Best get it repaired before the spring winds. -- Crazy George Remove N O and S P A M imbedded in return address "Dave Head" wrote in message ... Hi, I have a 4 el., 5 band quad on a Yeasu rotator on a Heights Aluminum tower. The antenna is swinging, in a fairly stiff breeze today, a total of about 20 degrees of arc. Of course that's not a problem with the width of the beam of a 4 el quad, but the 24 el 2 meter antenna I plan to add might have an issue with that much swing. I forget which model Yeasu rotator it is, but it is supposed to be big enough for the 4 el. quad (30 ft boom). G450? I think? Anyway, is 20 degrees in a stiff wind too much? Can I expect the rotator to fail soon over this? The tower does not appear to be twisting. The rotor base plate doesn't seem to be moving. I don't think there's that much play in the bolts of the masting, and the tower appears tight to the mast. I think the play is in the rotator. Is it common for a rotator to have that much play? Dave Head |
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