In a message dated 7/1/04 11:36:57 AM Pacific Daylight Time, TexasRF@aol.com
writes:
> What makes sense here is to use Yasu's method of K factor with Yaesu rotors
> and use the Hygain method with Hygain rotors. We don't have enough
knowledge
> of
> the manufacturer's safety margins to guess which method is more
conservative.
>
The bottom line is that they're the SAME and they're just APPROXIMATIONS
based on the manufacturer's knowledge of the unit.
This is an improvement over the old square footage capacity when you
could have antennas with the same square footage but radically different loads
on
the rototor. The only REAL numbers for rotator capacity are starting torque
and rotating torque; the K Factor/Effective Moment figures translate those
numbers into recognizable and usable amateur specifications.
Cheers,
Steve K7LXC
TOWER TECH
ex-National Sales Manage for Amateur for Hy-Gain/Telex
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