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Re: [TenTec] Re. [Ten Tec] Grounds and balanced fed verticals

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] Re. [Ten Tec] Grounds and balanced fed verticals
From: Stuart Rohre <rohre@arlut.utexas.edu>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Wed, 25 Jan 2012 17:09:18 -0600
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
Verticals of quarter wave or less height are not considered balanced 
(like a dipole is), unless you have at least two radials as you have. 
In fact the original prototype ground plane by RCA had two radials, but 
the salesmen thought three or four would look more symmetrical to 
customers, and that was the way production wanted the ground plane 
antennas marketed.

But, for your case and many others; yes, you could use ladder line to 
feed it and even transition to 300 ohm balanced line to enter the coax 
plug, so that you can use the coax jack.

  Les Moxon. in his RSGB England book, "HF Antennas for all Locations" 
shows ladder line fed quarter wave verticals as you describe.  This book 
is available from ARRL and other radio booksellers.

Stuart Rohre
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