I had two runs of LMR600 to the top of my 150 foot tower. Water got in and
ruined the cable. They are being replaced with Andrews LDF4-50A, which will
run all the way to the entrance panel mounted on the outside of the shack
wall.
I am also running LDF5-50A for my repeater antenna, that will end at the
bottom of the tower. Both ends have DIN connectors. I have a pair of 22
foot Sureflex assemblies that will be used to run from antenna to top, and
from bottom to entrance panel.
Rototated (HF) antennas will use double shield 214 for rotator loop to avoid
interference with repeater.
73, Keith NM5G
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
Robert Harmon
Sent: Friday, July 31, 2015 7:43 PM
To: <towertalk@contesting.com> <towertalk@contesting.com>
Subject: [TowerTalk] LMR600 up to the top of tower ?
I have a 380 foot coax run to the top section of my motorized tower when it
is fully extended.
I am changing out all my old RG213 and thinking of saving a few db by going
to LMR600 up to the top section then LMR400UF up from there for the rotor
loop and up to the 40 meter beam and triband/warc beam on the mast.
What do you think of LMR600 for this run from the shack up to the top
section for a motorized tower ?
When I lower the tower I am thinking I could coil the LMR600 into maybe 5
foot diameter coils on the ground.
BTW the tower is 90 feet to the top of the top section when all the way up.
Is this a bad idea ? (I am hoping to avoid the cost of the flex LMR600UF if
I can.) A side issue is I understand I have to be very careful not to nick
the copper clad on the center conductor
when installing a connector on the non flex LMR600. I would use the Davis
PL259 connectors for LMR600. Anyway maybe this usage of the
LMR600 is not a good idea, what do you think ?
Bob
K6UJ
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