[TowerTalk] Replacing coax question

[kk9a at arrl.net]

I would use a single piece of Belden 8267 RG-213 for this.  It's durable,
there would be fewer connections and it would have less that 0.5 dB loss.


----- Original Message -----
From: "Tom Martin" <tmartin at chartermi.net>
To: <towertalk at contesting.com>
Sent: Monday, October 11, 2004 18:36
Subject: [TowerTalk] Replacing coax question


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

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