[UK-CONTEST] Supporting an overhead run of Heliax

[Alan Ibbetson]

I want to run 160ft/50m of Heliax across a field to my second tower. I 
have some LDF2-50 or LDF4-50 I'd like to use. The ground is a long way 
from being flat and anyway I'm too tight fisted to fancy installing a 
buried cable duct.

There are a couple of handily placed oak trees nearby. I was wondering 
whether anyone has experience of supporting this much Heliax and a 
rotator cable from a wire rope catenary?

Info on the web suggests a 100lb "bucket of concrete" will tension the 
rope adequately with only about 6ft of sag, which will be OK with the 
ends 20 or 30ft up the trees.

I have two questions: will the Heliax fail with stress cracks from 
swaying about in the wind; and is there a hidden catch I've not even 
thought about?

73 Alan G3XAQ
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Alan Ibbetson
alan at g3xaq.net