If you think water proofing a PL 259 is hard at average ham heights
of 30 to 80 feet try waterproofing a N connector on the end of 7/8 "
helix at 300 ft plus feet in the air.
Good Luck all
Bill,W0WFH?
--------------------------
Bill,
Yep! Been there. When possible, I pre-installed my top-end
connectors on the ground before raising the hardline. Of course
usually there is a flexible jumper to the antenna that needs sealing
to the hardline.
Yesterday.,I shortened a run of 7/8-inch Heliax for installation on
my new 6m tower so that required re-installing the N-connector. What
is nice about the N-connector for the larger hardlines is that no
soldering is required (center conductor is hollow copper tubing which
the center pin assembly screws into with self-cutting thread. Solid
copper shield is compression fit, per usual. Most of the new
connectors are supplied with heat-shrink tubing to seal the
connector. I also use heat-shrink for coax connector junctions and
sometimes add a wrap of electric tape or Scotch-Kote the seams (or both).
Applying heat shrink on tall towers is problematic since one usually
can not use an electric heat gun. Most of my ham towers are short
enough to haul up an extension cord. (PS: 6-element 30-foot boom 6m
yagi is going up, today).
73, Ed - KL7UW
http://www.kl7uw.com
[email protected]
"Kits made by KL7UW"
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