Selecting a rotator
"Rod Maupin" wrote in message
...
I have never purchased a rotator before and I have one question.
You look at the specs for a given rotator, and it says that it will handle
say up to 10 square feet wind load area. You then look at the antenna
specs, and if the Wind Surface Area for it is less than 10 square feet,
then
you have a match? Is this correct?
Thanks for the help.
Rod KI7CQ
That is mostly correct. The rotator sqft rateing is the maximum of the
rotator. The antenna will also have a specification of the sqft rateing.
If you have two or more antennas on teh rotator then you have to add the
sqft of each antenna and come up with less than the rotator rating. The
bigger the differance, the more safety factor you have.
It is not usually a problem but also check for the weight the rotator will
support. Also if the rotator is inside the tower it will handle a bigger
load than if it is mounted to a pipe on top of the tower.
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