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Re: [VHFcontesting] rover tech - coax

To: Paul Kiesel <k7cw@yahoo.com>
Subject: Re: [VHFcontesting] rover tech - coax
From: Steve Meuse <smeuse@mara.org>
Date: Wed, 11 Jul 2007 12:26:07 -0400
List-post: <mailto:vhfcontesting@contesting.com>
Paul Kiesel expunged (k7cw@yahoo.com):

> I have a question. Why use inflexible coax at all for
> a rover installation when you can use RG-213 for
> virtually all bands. The losses associated with RG-213
> will be small with short runs as on a rover.


Why? 40+% more efficiency?

Freq loss cable   (based on 20' runs)
---------------
432  .9  RG-213
     .6  LMR-400-UF
     .5  LMR-400
902
    1.5
     .9  LMR-400-UF
     .8  LMR-400
1296
    1.7  RG-213
    1.1  LMR-400-UF
     .9  LMR-400

Rovers typically use lower-gain antennas, so the extra .5 can make a 
difference. Personally, I use LMR-400UF in my rover config. 

-Steve
N1JFU


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