[TowerTalk] Springs for erecting loops nd dipoles

[Bill Gillenwater]

I used old garage door springs. I contacted a few garage door repair/install 
companies and they were happy to let me have a few old springs they had in 
their truck. I look for those that have more "give" and not the "tight" 
ones. Worked well for me on several applications of wires in trees.

73 Bill K3SV

----- Original Message ----- 
From: "John King" <k5pgw at yahoo.com>
To: <towertalk at contesting.com>
Sent: Monday, January 26, 2009 11:30 PM
Subject: [TowerTalk] Springs for erecting loops nd dipoles


> Has anyone found an appropriate spring for protecting dipoles when the 
> supports such as trees sway? Maybe a name hardware supplier has such a 
> spring?
>
> I am going to use Dacron with a strength of about 750 lbs, to suspend the 
> wire antennas, and would like to be able to pull the vertical loop and 
> dipoles strung between trees taunt and at the same time protect the 
> antennas from breakage. I am sure the rope is much stronger than the 
> copper wire that will be used.
>
> The spring must be strong enough to hold the antenna taunt YET give enough 
> to protect the antenna.
>
> I am going to use old water hose on the Dacron where it goes over the 
> limbs to prevent scuff damage to the Dacron. Also, I like the idea of 
> using a weight on the tail of the Dacron near the earth to allow movement 
> of the trees without breaking the Dacron. The weight can be judiciously 
> selected to keep the antenna taunt and still provide give for the line.
>
> Your suggestions will be appreciated. 73, John, K5PGW
>
>
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk


--------------------------------------------------------------------------------



No virus found in this incoming message.
Checked by AVG - http://www.avg.com
Version: 8.0.176 / Virus Database: 270.10.14/1917 - Release Date: 1/26/2009 
6:37 PM