Taping RG-393 is a good precaution and I would do the same if was using
that on an antenna where replacement would be difficult. I bought a used
antenna once and some RG-142 teflon coax with a tan jacket was still
attached. I am not sure how long it was outdoors but it looked in perfect
condition. As an experiment I had a piece of teflon coax outside and saw
no degradation after a couple of years so I think FEP is pretty tough. I
do not understand the "will only last 15 minutes" comment.
John KK9A
To: <towertalk@contesting.com>
Subject: [TowerTalk] What am I missing....balun
From: "Jim Thomson" <jim.thom@telus.net>
## The outer jacket on 393 and 142 is not PTFE. PTFE is used for the
dielectric inside. PTFE aka terflon.
## Outer jacket is FEP-9 . These cables are made by everybody and their
dog.
Made in the UK, china, rfs makes it, so does times microwave, belden, and a
bunch more.
I suspect its either a quality control issue, or a tweak in the formulae,
rendering it semi useless
for UV outdoors. Im not going to take a chance, and will 88 or 33 tape
it the
entire length.
Which is not vey much, so not an issue. Its too expensive as is, and 33
or 88
tape is cheap
insurance.
Jim VE7RF
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