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[TowerTalk] FORCE 12 C4XL

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Subject: [TowerTalk] FORCE 12 C4XL
From: "Don Beattie" <g3ozf@btinternet.com>
Date: Wed, 21 Dec 2005 11:32:02 -0000
List-post: <mailto:towertalk@contesting.com>
I wonder if anyone can help ?

I have had a C4XL up here for some years at about 80ft, and it works very well. 
Not in the C31 class on HF, of course, but I wanted 40m performance as well on 
the one boom.

Recently I've been thinking about the forward gain and f/b on 10/15/20 of the 
C4, and considering whether there was any opportunity to improve it. Playing 
with EZNEC suggests that replacing the front 10m director with a trapped 
tri-band director might give about and extra 1.5 dB forward gain, and some 10 
dB f/b improvement. Yes, I know it would mean using traps, which I generally 
don't like, but on paper, the advantages are there for the taking.

Has anyone played with the C4XL in this way. If so - any comments or 
experiences you can share with me ?

73 - and happy holidays

Don, G3BJ
_______________________________________________

See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather 
Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions 
and ask for Sherman, W2FLA.

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