Perhaps because it's steel, which isn't as good a conductor as aluminum
----- Original Message -----
From: "Gary K9GS" <GaryK9GS@wi.rr.com>
To: "Macie, Gordon" <GMacie@innotrac.com>; <towertalk@contesting.com>
Sent: Friday, November 07, 2003 9:28 PM
Subject: Re: [TowerTalk] 40 Meter Vertical Construction
> 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@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@innotrac.com>
> To: <towertalk@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@arrl.net
> >
> > _______________________________________________
> >
> > 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.
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
>
>
> _______________________________________________
>
> 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.
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
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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