[TowerTalk] 40 Meter Vertical Construction

[Gary K9GS]

Hello Gordon,

Why not use chain link fence top rail instead?  It comes in several
different sizes, is cheap, galvanized, comes in 21' lengths (1  1/2 pieces
do the job) and they are swaged on one end.

Check them out at Home Depot.  If you think you need something different
than what they carry look in the yellow pages for a chain link fence dealer.

73,
 Gary

 ++++++++++++++++++++++++++++++++++++++++++++++++
  K9GS
  Gary Schwartz           email: k9gs at arrl.net
  Check out K9NS on the web    http://www.qsl.net/k9ns/
  Society of Midwest Contesters (SMC)     GMDXA
 ++++++++++++++++++++++++++++++++++++++++++++++++


----- Original Message ----- 
From: "Macie, Gordon" <GMacie at innotrac.com>
To: <towertalk at contesting.com>
Sent: Friday, November 07, 2003 04:17 PM
Subject: [TowerTalk] 40 Meter Vertical Construction


> I am building a 40 meter 4-square. I have decided to build it with
aluminum
> from Texas Towers. The bottom section will be 1.625 and reduce 1/8 per
> section above that with the top peice being .875. How much do I need to
> overlap or telescope into each section for mechanical strength ??.. I am
> thinking 6 to 12 inches.
>
> Blurb below from Texas Towers web site.
> 6063-T832 Drawn Aluminum Tubing
> Typical yield strength of 40,000 psi. The chart shows all available
> telescoping sizes which are specifically designed to fit together
precisely,
> making antenna construction easy, while offering professional results.
>
>
> Gordon N4LR
> n4lr at arrl.net
>
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