Roger,
I have the LMR in hand and will not buy anymore coax this year. I'm saving my
dough for a DX-pedition for the ARRL DX test in March.
I have FINALLY decided to run 213 to the LMR. One bulkhead connector grounded
to the top of the tower below the loop. I just went downstairs and checked the
LMR. You can stand on a short length of the stuff. It is indeed stiff!
Thanks for all of the suggestions. It has been informative. I'll use the info
in our next club newsletter. I am the president of the Mich- A -Con ARC here
in Iron Mountain, MI. I'm always looking for info in my Words from the
President column.
End of thread......
73,
Tom W8JWN
Roger Borowski wrote:
> Tom, Buy the LMR-400UF, with the UF standing for Ultra Flex. I run it up to
> all my antennas. Costs a bit more, but I feel its worth it with a stranded
> center conductor vs. the solid center conductor of LMR-400
> Got mine through Texas Towers. If you need to make tight radius bends down
> below, no need to worry about center conductor migration and impedance
> bumps. 73, -=Rog-K9RB
>
> ----- Original Message -----
> From: "Tom Martin" <tmartin@chartermi.net>
> To: "Alan C. Zack" <k7acz@cox.net>
> Cc: "Towertalk Reflector" <towertalk@contesting.com>
> Sent: Tuesday, October 12, 2004 2:16 PM
> Subject: Re: [TowerTalk] Replacing coax question
>
> > I have decided to run the LMR from the beam directly to the relay box at
> the bottom of the tower. The LMR is flexible enough for a large loop. It
> might get a little stiff this winter when the temps get to minus 20!
> >
> > W8JWN
> >
> > "Alan C. Zack" wrote:
> >
> > > I think I'd be more worried about moisture getting into the PL-259 /
> > > barrel connection splice hanging out in the open than insertion loss.
> > >
> > > Tom Martin wrote:
> > >
> > > > I am replacing a 90' length of RG8 water damaged coax to my 40 meter
> beam. I have LMR 400 for the main run up the tower but want to use a RG8
> section for the rotator loop. There are two ways to do this. First, a 14'
> section of RG8 from the feed point of the beam with one PL259 and one barrel
> connector to join the LMR. Secondly, a 10' section of LMR and PL259 to a
> barrel connector and a 4' section of RG8 for the loop to join the LMR that
> goes down 80' to the antenna relay box at the base of the tower. This
> configuration would require 4 PL259's and two barrel connectors. I want to
> avoid the many possible problem areas with the multiple connections. I
> think that I have answered my own question but wasn't sure if adding that
> much RG8 to the run would offset the benefit of the LMR 400. I suppose on
> 40 meters the loss would be negligible. Am I correct?
> > > >
> > > > 73,
> > > >
> > > > Tom W8JWN
> > > >
> > > > _______________________________________________
> > > >
> > > > See: http://www.mscomputer.com for "Self Supporting Towers",
> "Wireless Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041
> with any questions and ask for Sherman, W2FLA.
> > > >
> > > > _______________________________________________
> > > > TowerTalk mailing list
> > > > TowerTalk@contesting.com
> > > > http://lists.contesting.com/mailman/listinfo/towertalk
> > > >
> > > >
> > >
> > > --
> > >
> __________________________________________________________________________
> > >
> > > Alan Zack
> > > Amateur Radio Station K7ACZ
> > > Las Vegas, Nevada, USA
> > > Quality Engineer, The Boeing Company, Retired
> > > Aviation Chief Warrant Officer, U.S. Coast Guard, Retired
> > > U.S. Coast Guard, Always Ready, Always There
> > > Every hour, Every day, Around the Clock and Around the World
> > > SEMPER PARATUS
> > > http://gocoastguard.com
> > > DEPARTMENT OF HOMELAND SECURITY
> >
> > _______________________________________________
> >
> > See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
> Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
> questions and ask for Sherman, W2FLA.
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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