[TowerTalk] LMR600 up to the top of tower ?

Steve Sacco NN4X nn4x at embarqmail.com
Sat Aug 1 23:26:00 EDT 2015


Does anyone have first-hand experience with Ecoflex?  It looks quite good.

http://vibroplex.com/contents/en-us/d38.html


73,
Steve
NN4X


On 8/1/2015 9:24 PM, towertalk-request at contesting.com wrote:
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 >    1. Re: [Bulk] Re:  LMR600 up to the top of tower ? (Robert Harmon)

 > ----------------------------------------------------------------------
 >
 > Message: 1
 > Date: Sat, 1 Aug 2015 10:43:41 -0700
 > From: Robert Harmon <k6uj at pacbell.net>
 > To: "<towertalk at contesting.com>" <towertalk at contesting.com>
 > Subject: Re: [TowerTalk] [Bulk] Re:  LMR600 up to the top of tower ?
 > Message-ID: <0979DB51-1243-4D32-B278-A6B939DCC0B8 at pacbell.net>
 > Content-Type: text/plain; charset=us-ascii
 >
 > Grant,
 >
 >  I will have a stack on my HDX589 consisting of  40/20  on the bottom 
and a new 17/15/12/10 on top.
 >  I see your point on LMR600UF for the swing arm loops not holding up.
 >  So lets see if I have your arrangement right.  You are running 7/8 
and 1/2 LDF from the shack to the tower top section,
 >  then they connect to Buryflex for the swing arm loops for rotation, 
and the Buryflex cables continue up the mast and connect to the
 >  beams.  Is that correct ?
 >
 > Bob
 > K6UJ
 >
 >
 >
 >
 >> On Aug 1, 2015, at 7:16 AM, Grant Saviers <grants2 at pacbell.net> wrote:
 >>
 >> I second Roger's comment.  Coax I removed from a large stack were 
7/8 hardline to LMR600UF swing arm loops, and the 600 was in bad shape 
after 7 years.  Several cuts, one complete tear of the braid, water 
inside.  I'm using Buryflex service loops and with 7/8 LDF5 for 20/15/10 
and 1/2 LDF4 80 & 40  have less than 0.8db loss Yagi feedpoint to amp on 
all bands.  Buryflex is very tough stuff and flexible enough for service 
loops.  With the long runs (140' tower, 125' to shack) in hardline the 
slight additional loss for the short service loop is within the loss budget.
 >>
 >> Grant KZ1W



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