On Wed, 15 Apr 1998 06:41:51 +0800 Steve Ireland <sire@omen.com.au>
writes:
>For those with trees and big saggy 160m dipoles:
>
>The best (only) way I have found to keep a dipole halyard running
>smoothly
>over or up a tree is to use stainless or galvanized steel halyards,
>straight
>over the top of the tree. Pulley systems inevitably get stuck in
>trees and
>even the toughest Dacron or nylon will fray. Nice old greasy guy
>wires
>slide well!
Many moons ago I had a G5RV between two 70' pine trees. The antenna was
made of #10 Copperweld and large surplus insulators.
At both ends I used heavy duty springs from overhead garage
doors....found at the town dump. I used more #10 to go around the tree,
etc. and used a length of garden hose to keep the wire from growing into
the tree. That antenna survived everything including hurricanes for 7
years until I moved. It was amazing to watch all the other trees sway
violently but those two barely moved in comparison.
I never used pulleys but others I know have had good results with marine
grade used for wire rope.
73 Carl KM1H
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