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[TowerTalk] End feeding a half-wave vetical

To: towertalk@contesting.com
Subject: [TowerTalk] End feeding a half-wave vetical
From: dennis o'connor <k8do@mailblocks.com>
Reply-to: k8do@mailblocks.com
Date: Thu, 02 Jun 2005 04:15:11 -0700
List-post: <mailto:towertalk@contesting.com>
I doubt that a 9:1 transformer is going to do the job... The impedence 
at the end of the half wave is several thousands of ohms and is highly 
reactive - plus lthe reactance changes rapidly as the frequency is 
varied... All is not lost, however...
  A parallel tank circuit with a tapped feed point at ~ 50 ohms above 
ground for the coax will get you home free...  It's been done that way 
for generations...  Check any ARRL Antenna Handbook...

cheers  ...  denny - k8do

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