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Re: [TowerTalk] LMR600

To: "'Daron J. Wilson'" <daron@wilson.org>,"'TowerTalk'" <towertalk@contesting.com>
Subject: Re: [TowerTalk] LMR600
From: "DAVID O'NEILL" <w9nto@isp.com>
Date: Thu, 23 Feb 2006 23:36:04 -0500
List-post: <mailto:towertalk@contesting.com>
I HAVE USE BOTH.BUT FOR $300  ROLL I'LL STICK WITH IT.

-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Daron J. Wilson
Sent: Thursday, February 23, 2006 11:27 PM
To: 'TowerTalk'
Subject: Re: [TowerTalk] LMR600

Yup, it does pretty good.  However, I would recommend using the adhesive
lined heat shrink tubing included with the LMR600 fitting and installing
it
per the manufacturer's recommendation (i.e. use the heat shrink).  The
supplied heat shrink is not bad, it is not nearly as thick and durable
as
the 3M product used for underground electrical splices, I keep all sizes
of
that as well and prefer it generally for the fittings.  There are two
issues:

1. install the fitting correctly and seal it with the coax.  For this
task,
the manufacturer provides nice adhesive lined heat shrink.

2. weatherproof the fitting AFTER installed to the antenna connector.
For
this purpose, I generally wrap the connection once with good (scotch 33
or
88) vinyl tape, stretching the tape tightly and allowing it to shrink
back
down as you wrap it.  Next, I coat the tape with 3M scotchkote, a nasty
gooey sealant.  When it is almost dry, I wrap the fitting assembly with
a
high quality rubber tape, again, stretching it as I wrap so it sucks
down
solid on the connector with each wrap.  Next, another coat of
scotchkote,
then a final wrap of 33 or 88 to finish it off.  Alternately, you can
use
coaxseal or 'live rubber' type products instead of the rubber tape, it
is
thicker and stickier.

I just did 38 locations with yagi's and LMR600, sealed as above, nice
and
solid.  I used the EZ crimp fittings which are spendy ($16) but when
armed
with the EZ strip tool, the deburring tool, and the proper crimper, it
saves
money in labor and they make a very nice installation.

Good luck!

N7HQR



> -----Original Message-----
> From: towertalk-bounces@contesting.com [mailto:towertalk-
> bounces@contesting.com] On Behalf Of DAVID O'NEILL
> Sent: Thursday, February 23, 2006 8:14 PM
> To: 'K8RI on Tower talk'; 'WA3GIN in Alex. City, VA'; 'Courtney Judd
> K4WI'; 'TowerTalk'
> Subject: Re: [TowerTalk] LMR600
> 
> RUBBER TAPE IS A EXELLANT MOISTURE SEALANT
> 
> -----Original Message-----
> From: towertalk-bounces@contesting.com
> [mailto:towertalk-bounces@contesting.com] On Behalf Of K8RI on Tower
> talk
> Sent: Thursday, February 23, 2006 11:06 PM
> To: WA3GIN in Alex. City, VA; 'DAVID O'NEILL'; 'Courtney Judd K4WI';
> 'TowerTalk'
> Subject: Re: [TowerTalk] LMR600
> 
> 
> 
> 
> >I wrap standard vinyl electrical tape around the connector then use
> heat
> > shrink over it.
> 
> Typically, I apply the flooded 3-M heat shrink directly over the
> connector
> and out onto the coax for several inches.
> http://www.rogerhalstead.com/ham_files/connectors.htm Applying tape
over
> the
> connector part would certainly make it easier to get apart.  Without
the
> 
> tape it's pretty much a permanent connection you'll probably throw
away
> if
> you take it apart.
> 
> Roger Halstead (K8RI and ARRL 40 year Life Member)
> N833R - World's oldest Debonair CD-2
> www.rogerhalstead.com
> 
> 
> >
> > 73,
> > dave
> > wa3gin
> >
> >
> > -----Original Message-----
> > From: towertalk-bounces@contesting.com
> > [mailto:towertalk-bounces@contesting.com] On Behalf Of K8RI on Tower
> talk
> > Sent: Thursday, February 23, 2006 9:34 PM
> > To: DAVID O'NEILL; 'Courtney Judd K4WI'; 'TowerTalk'
> > Subject: Re: [TowerTalk] LMR600
> >
> > I don't know what heat shrink tubing you've been using, but I use
good
> > quality commercial grade, flooded, that is widely used in industry
and
> it
> > works very well and has for some years.  It does not leak water or
> even
> > moisture.
> >
> >
> >
> >
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> 
> 
> 
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