Bill etal,
I had some LMR-600-UF going to several UHF antennas on a rotating tower.
It showed signs of sun damage and the outer jacket crinkle cracked on me
too.
The salesman warned me upfront it might not make 10 years.
But even cracked with some exposure to the shield, the integrity of the coax
(loss & Z) was still in spec.
IIRC, I actually found a footnote on the LMR site that UF was not intended
for outdoors, but it will survive for a number of years.
Bill, YMMV but the Jafa-Tek specs are not the same as LMR-xxx.
But for jumpers it's probably in that bucket called diminishing returns.
I have also used SuperFlex in rotor loops but over time I had one crack
along the annular shield rings, opening the shield.
Not sure if that was a one off, or something attributable to the SuperFlex
construction.
At the time I decided to replaced them all but I am reconsidering SF vs. UF.
Mike K9MK
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Keith
Dutson
Sent: Wednesday, August 23, 2017 2:13 PM
To: Tower Talk
Subject: Re: [TowerTalk] Crappy LMR600
That cable is good as gold when used properly. Anything other than solid
copper jacket hardline used outside, with proper connection waterproofing is
eventually going to have weathering problems that allows water intrusion.
That kills performance.
73, Keith NM5G
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Bill
via TowerTalk
Sent: Wednesday, August 23, 2017 1:38 PM
To: TOWERTALK@contesting.com
Subject: [TowerTalk] Crappy LMR600
I ordered some of the Flex LMR 400 from Times back in the early 2000s for
pigtails on all the side mounted rotating antennas....roughly 15 of them.
The Times flex is absolute garbage. Almost all of the pigtails jackets
started cracking after several years. I spent many hours having to replace
this garbage while making many trips up and down the towers to replace this
manure of a cable. I called them and was told they do NOT recommend that it
be used outside. WTF?
I have used Jefa-Tek regular LMR400 for all my flexible applications and
have NEVER had a problem at several different stations.
Bill KH7XS/K4XS
Message: 3
Date: Mon, 21 Aug 2017 08:52:37 -0400
From: "Mike Ryan" <mryan001@tampabay.rr.com>
Cc: <towertalk@contesting.com>
Subject: Re: [TowerTalk] coax advice
Message-ID: <003201d31a7c$5e14e190$1a3ea4b0$@tampabay.rr.com>
Content-Type: text/plain; charset="us-ascii"
Not sure what others have experienced while using LMR-600 but I was just on
my tower this weekend (in some insane heat) removing two runs of LMR-600.
This was the FLEXIBLE version that does not have the PE jacket. On my cable,
the jacket had begun falling off, especially in areas where it got wet or
damp regularly, and actually closer to the ground than in the air. But I
also have found that some other locals here had done the same
thing..disposing of this cable due to the same problem. This was
Times-Microwave brand and not another brand. It was about 8 years old...your
results may differ. - Mike
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Rudy
Bakalov via TowerTalk
Sent: Saturday, August 19, 2017 1:31 PM
To: Chuck Dietz
Cc: towertalk@contesting.com
Subject: Re: [TowerTalk] coax advice
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