[TowerTalk] antenna choices

[john at kk9a.com]

It was an interesting article by K6IF and W6BD although I am not sure why
the gain figures in the chart do not match the text. The C-31XR and 4el
SteppIR are two very different technologies and yet the end results
(except for poor 10m SteppIR F/B) are very similar on the three bands
tested. Using the gain figures in the text, these antennas have only
slightly less gain than my homebrew 4el 20m OWA Yagi at the same height.
Of course a larger monobander would beat them but that is not a fair
comparison.

John KK9A


To:	towertalk at contesting.com
Subject:	Re: [TowerTalk] antenna choices
From:	Jim Brown <jim at audiosystemsgroup.com>
Reply-to:	jim at audiosystemsgroup.com
Date:	Tue, 07 Apr 2015 13:41:49 -0700

On Tue,4/7/2015 1:25 PM, john at kk9a.com wrote:
That is very interesting data!  Has anyone modeled a SteppIR with a
comparable boom length?

Google found these. When I was making my purchase decision, I saw other
work that looked like it was well done.

http://p02.de/wp-content/uploads/2010/12/steppIR_Ms_ENGL_REV16DEC10.pdf

http://www.k6sgh.com/antennas/steppir%20study.htm

http://www.k6if.com/steppir/steppir_4el.html

73, Jim K9YC