|To:||"Joe Subich, K4IK" <firstname.lastname@example.org>|
|Subject:||Re: [TowerTalk] SteppIR Redux|
|From:||Rob Frohne <email@example.com>|
|Date:||Fri, 7 May 2004 07:57:01 -0700|
On May 6, 2004, at 4:38 PM, Joe Subich, K4IK wrote:
If you are willing to just have a factor of two contraction, you could use threaded rod which would certainly have no problem moving the tubes in and out.
This is one of the reasons I'm interested in an adjustable antenna. My philosophy at my present installation is to make it beefy when I'm not using it, and big when I am. I have a 122 foot crank up tower that I plan to crank up and down. Having an antenna that retracts would be a perfect match. :)
Rob -- Rob Frohne, Ph.D., P.E. E.F. Cross School of Engineering Walla Walla College http://www.wwc.edu/~frohro/
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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