[Towertalk] Coax recommendations

Thomas Miller ac5tm@bellsouth.net
Thu, 17 Oct 2002 16:48:53 -0700


Where I work we have have cables that have been buried for over 70 years
that still work just fine with no water intrusion however I do not think
anyone makes coax with a lead jacket these days.

Tom AC5TM
----- Original Message -----
From: "Eje Gustafsson" <macahan@fament.com>
To: <towertalk-admin@contesting.com>; "John von Gonten" <n5bsd@arrl.net>
Cc: "TowerTalk" <towertalk@contesting.com>
Sent: Wednesday, October 16, 2002 8:57 PM
Subject: Re: [Towertalk] Coax recommendations


> Hello John,
>
> LMR-400DB is direct burial hence DB (Direct Burial).
> In the LMR category you have besides the "standard" cable the
> following options.
> FR - fire retardant for installation in vertical building raisers
> LLPL - low loss plenum cable for use in any in building aps including
> air handling plenums and spaces where maximum fire retarandcy and
> minimum smoke generation are required.
> DB - water tight cables with an inert flooding for direct burial
> UF - ultraflex stranded center conductor cables with flexble outer
> jacket
>
> All of this is covered in Times Microwaves discovery document.
>
> - Eje "Aya"
>
> JvG> Texastowers sells coax tag LMR-400DB, and I quote the site for this "
> JvG> LMR-400 with a special sealing compound between the shield and outer
> JvG> jacket for direct burial." it is around 75 cents a foot listed on the
> JvG> site. Per Times Microwave site it has a 1" turn radius, .405"
diamater.
> JvG> On Wed, 2002-10-16 at 18:55,
>
>
> JvG> Jon Ogden wrote:
> >> Perhaps not.  They do have a direct burial version.
> >>
> >> And the Cable Experts CXP1318FX IS indeed a direct burial cable.
> >>
> >> 73,
> >>
> >> Jon
> >> NA9D
> >>
> >> on 10/16/02 4:03 PM, Larry at lclarks@nc.rr.com wrote:
> >>
> >> > I'm using LMR400UF and was informed by Steve Davis of Davis RF that
it is
> >> > not suitable for direct burial.
> >> >
> >> > They sell a cable called "BURY FLEX" that is very close to the
LMR400UF and
> >> > a good price.
> >> >
> >> > Larry WA2SRY
> >> > Durham, NC
> >>
> >>
> >> -------------------------------------
> >> Jon Ogden
> >> NA9D (ex: KE9NA)
> >>
> >> Life Member: ARRL, NRA
> >> Member:  AMSAT, DXCC
> >>
> >> http://www.qsl.net/ke9na
> >>
> >> "A life lived in fear is a life half lived."
> >>
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