In a message dated 8/25/2007 10:00:45 A.M. Pacific Daylight Time,
km1h@jeremy.mv.com writes:
> Thats strange. Numerous YCCC and other serious contesters/DXers with big
stacked arrays have been using dual bearings for decades with a significant
reduction in rotator failures.
Reduction because of what? Reduction from what to what?
What actual mechanical improvement does the additional mid-bearing make?
More torque reduction? No. More vertical weight reduction? No, the weight's
already on the top bearing. A psychological improvement? Probably. More ham
radio old wive's tales? Probably.
Cheers,
Steve K7LXC
TOWER TECH -
Professional tower services for hams
Cell: 206-890-4188
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