[Elecraft] OT: Ladder Line Spacers

[Wes Stewart]

How did we get from solid spacers to rope?

http://www.sdplastics.com/ultravioletresistance.html

--- On Thu, 5/13/10, Tom W8JI <w8ji at w8ji.com> wrote:

From: Tom W8JI <w8ji at w8ji.com>
Subject: Re: [Elecraft] OT: Ladder Line Spacers
To: "Wes Stewart" <n7ws at yahoo.com>, elecraft at mailman.qth.net, "Ken Kopp" <k0pp at rfwave.net>
Date: Thursday, May 13, 2010, 3:03 AM

The dissipation factor of Nylon is about two orders of magnitude greater than polyethylene and the UV resistance is horrible.

Wes N7Ws>>

None of that may matter because the electric field strength in the insulator is probably low and almost all nylon has UV inhibitors now.

The rope I use for antennas is nylon and it lasts a very long time in the Georgia sun.

You have to look at the material characteristics of the particular nylon material for UV life, and the end application for dissipation factor problems. Even 100 times nothing might still be considered nothing.

73 Tom