[Towertalk] Calculating guy distance for rotating towers

[kk9a@arrl.net]

Good luck with your project.  You can use stronger tower sections to allow
more spacing between guys.  For example: I believe that with Rohn 55G you
can have 40' between guys and go 20' above the top guy.  This would allow
you to put your top guy at 58' and you may get away with standard anchor
spacing.  I use Rohn 65G with 60' between guys to allow room for antennas to
turn.

73,
John

----- Original Message -----
From: <kr7o@vhfdx.com>
To: <kk9a@arrl.net>
Cc: <towertalk@contesting.com>
Sent: Friday, October 11, 2002 1:09 PM
Subject: Re: [Towertalk] Calculating guy distance for rotating towers


Thanks to all that replied (I started losing track of the public/private
replies).  I probably should have used real numbers as several people ran
my example (which was simplified and way off on the turning radius).   I
received a couple of mathematical processes to determine the distance and
several people said that graphing works well also.  Also thanks to those
that posed other considerations.

The actual project is 4 x 6m7jhv 6 meter yagis stacked at 78/59/40/21' with
the top guy at 75'.  The boom lengths are 31' and the actual turning radius
is 17.2' which I will up to at least 18' for the calculations.  The lower
guys will likely not pose a problem.  I need to check with Mike at M2 on
the spacing as I may be able to run a bit more spacing to reduce the guying
radius.



73, Robert KR7O/YB2ARO, DM07ba/OI52ee  (ex.  N7STU)
kr7o@vhfdx.com

www.vhfdx.com (Norcal WSWSS activities & KR7O/YB2ARO homepages)