|To:||"P. Marlow Miller" <firstname.lastname@example.org>, <email@example.com>|
|Subject:||Re: [TowerTalk] Rohn 45 tower|
|From:||Pete Smith <firstname.lastname@example.org>|
|Date:||Sun, 31 Aug 2003 03:20:39 -0400|
At 09:15 PM 8/30/03 -0500, P. Marlow Miller wrote:|
I'm writing to the list as I have no practical experience with any type of
How much wind area does this microwave antenna have -- is it a dish or a Yagi type?
My Rohn catalogue does not provide data on the height versus wind area calculation for self-supporting Rohn 45, nor does it detail the size of the base that is required. Both are critical, particularly the latter, because ALL the loads of a self-supporting tower are taken by the base. Bracketing to your house can reduce the amount of base (and the amount of tower that needs to be unguyed, but then significant loads are transferred to the house structure, so the connection needs to be done with care.
Others may provide the info you need, but if not, I believe this subject has been covered in detail in the past on this reflector. If you go to www.contesting.com, look in the left margin for a box labeled "list search," and provide Rohn 45 and self-supporting as search terms, it will find whatever has been written on this topic for as long as towertalk has been around. A second search on bracketed or house bracket will get you info on those topics as well.
Pete Smith N4ZR
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
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