|Subject:||[TowerTalk] Roof Mounted Self Supporting Tower...|
|From:||Dino Darling <firstname.lastname@example.org>|
|Date:||Wed, 12 Nov 2003 10:02:08 -0800|
I doing some leg work for the possibility of placing a 40' self supporting tower on the flat roof of a gym for a communications station/disaster shelter. The tower will most likely hold the M2 Log Periodic and a substantial vertical for VHF/UHF. Also, a 80 meter dipole. I picked 40' because the roof is 20'+ and I want to be at least 60' off the ground.
I am doing my homework to look at different towers with their different wind load ratings, etc. My initial thinking is to build a "platform" that will tie into the roof members, spreading out the load, and giving me multiple anchor points....say 10' x 10' covering 5 beams. An engineer will be consulted.
If you have mounted a tower on a roof, I'd like to hear what you have to say and any tower manufacturer recommendations you may have! I was thinking about aluminum in order to keep the weight down to a minimum. Another option was a guyed Rohn 25G.
When I was Chief Operator for Naval Station Long Beach MARS Station in 1990, we had a crank-up tower mounted over a single beam and guyed. I didn't install it, but I had to work on it!
I would rather NOT have to run guy wires in order to keep the "looks" clean.
As always, THANK YOU!!!
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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