[TowerTalk] Tower mast calculator

john at kk9a.com john at kk9a.com
Sat Jan 11 18:00:12 EST 2014

Of course it does not calculate your structure's limitations or the antenna 
survivability.  It is a nice tool for free, but it only works with  their 2" 
and 3" 4130 masts.  If you have a different diameter, different wall 
thickness or use 1026 steel or 6061 aluminum this will not work.

John KK9A

To:"Tim Jellison" <kl7wv at kl7wv.com>, <towertalk at contesting.com>
Subject:Re: [TowerTalk] Tower mast calculator
From:"Gene Smar" <ersmar at verizon.net>
Date:Sat, 11 Jan 2014 11:52:29 -0500
List-post:<towertalk at contesting.com">mailto:towertalk at contesting.com>


I just tried the tool with my antennas. Be carefull! Apparently the calcs 
don't tell you anything about your tower's limitations. The calcs merely say 
that the DXE MAST will or will not fail at the given wind speeds; they tell 
you nothing about the survivability of the tower. In other words, a big load 
may survive on a 3 inch DXE mast, but it might bring down a stack of Rohn 25 
or a light-duty self-supporter.
    Caveat Amateur!

73 de
Gene Smar  AD3F

----- Original Message ----- From: "Tim Jellison" <kl7wv at kl7wv.com>
To: <towertalk at contesting.com>
Sent: Saturday, January 11, 2014 11:43 AM
Subject: [TowerTalk] Tower mast calculator

DX Engineering just put a nice little utility on their website to calculate 
loads on a tower mast. It's pretty handy when trying to figure out what 
antennas a mast pipe can handle.


Tim Jellison W3YQ/KL7WV
KL7WV Tower Service
304 704 1196
kl7wv at kl7wv.com

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