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Re: [TowerTalk] LMR600 male DIN

To: towertalk@contesting.com
Subject: Re: [TowerTalk] LMR600 male DIN
From: "john@kk9a.com" <john@kk9a.com>
Date: Tue, 6 Sep 2016 08:00:29 -0400
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
According to the timesmicrowave and commscope websites at 30MHz LMR600 has
0.4dB/100ft loss and LDF4 has 0.357/100ft. They are very close in specs
and price so of the two I would pick the most durable.  The real point of
my post was that K6UJ seemed more concerned about the connector than the
coax that is was attached to. Personally I would rather have 300ft of LDF7
with and N connector than 300ft of LMR600 with a commercial quality DIN.

John KK9A

To:     <towertalk@contesting.com>
Subject:        [TowerTalk] LMR600 male DIN
From:   "Jim Thomson" <jim.thom@telus.net>
Date:   Mon, 5 Sep 2016 01:49:44 -0700

Date: Sat, 3 Sep 2016 16:50:33 -0000
From: <john@kk9a.com>
To: <towertalk@contesting.com>
Subject: Re: [TowerTalk] LMR600 male DIN

I would not use LMR600 for the runs to the tower.  Even the small LDF4 has
less loss, it is tougher, UHF, N and DIN connectors are readably available
and if purchased surplus it is cheaper than LMR600.  If you care about coax
loss I would look at larger Heliax.

John KK9A

##  why would ldf4..aka  1/2 inch heliax, have less loss than  LMR-600DB ?
600 uses a 5.5 gauge center conductor..which is pretty big.  both are foam.
stated loss from both manufacturers is almost identical.   Having said that,
1/2 inch
heliax could be obtained locally  pretty cheap, brand new.

##  That RFS brand heliax is the bomb.  Corrugated Aluminum  shield...and a
corrugated
copper center conductor =  very flexible.    u can get it in several
sizes,  up
to 1.25 inch.

Jim  VE7RF

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