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Subject: Re: [TowerTalk] BLACKENED BRAID?,
From: Jim Lux <>
Date: Tue, 14 Jun 2011 07:00:48 -0700
List-post: <">>
On 6/14/11 6:50 AM, Rob Atkinson wrote:
  A run of RG213 of only 100 feet can provide a surprising amount
> of loss on 1.8 MHz to a matched load--the best possible
> conditions--and a dB here and there and it starts to add up.

<0.25 dB for 100ft of Belden 8267 (an RG-213 type), LMR 400 is 0.162 dB

RG-58 type (solid dielectric) is about twice that.  LMR240 is 0.36dB

low density dielectric helps a bit, but you'd have to decide whether .1 
dB for 100 ft is worth it.  (goes up as sqrt of frequency.. at 30 MHz, 
the RG213 is at 1.1 dB/100ft)

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