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[TowerTalk] Hardline & crank up tower?

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Subject: [TowerTalk] Hardline & crank up tower?
From: (
Date: Wed, 14 May 1997 09:49:16 -0400 (EDT)
In a message dated 97-05-14 09:10:49 EDT, writes:

>  As you know hard-line is not made to be bent or moved a lot.  I would 
>       use hard line to the tower and up to the 1st level where the tower is

>       nested.  I would then use a 9913 type the rest of the way.  If the 
>       tower nests at 20 feet and extends to 55 feet you will only have
>       feet of 9913 type of coax.  I have use runs of 75 feet of 9913 with a

>       radio putting out only 2 watts and have good performance from it at 
>       940 MHz.  

     The same caveat should be applied to 9913.  Since the inner conductor of
9913 is a solid wire, it shouldn't be used in an application where it'll be
moved; i.e. rotator loop or on crank-up.  Over time, it will crack and break.
There are some new 9913 clones that have a multi-strand inner conductor that
will take the movement with no problem.

     The only way you could use hardline on a crank-up tower is if you never
lower it once it's extended.  

73,  Steve  K7LXC

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