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[TowerTalk] Phased Verticals

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Subject: [TowerTalk] Phased Verticals
From: "Bill" <>
Date: Wed, 5 Apr 2006 06:54:53 -0700
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Another source for phased vertical information is in a Telex-HyGain Engineering 
report entitled "Phased Multi-Band Verticals for Additional Gain and Low Angle 
Radiation."  The report is undated but contains designs for 2 and 3 element 
phasing systems showing the patterns and switching configurations.  In the 
report the 3 antenna system is shown with the antennas placed at the corners of 
an equilateral triangle with each side of the triangle being 1/4 wavelength.  
In this configuration the report states that for the three antenna 
configuration a 60 degree pattern can be switched in six selectable directions. 
 Note that the cardioid pattern shown in the report for the two antenna system 
is not totally correct (it shows a point in the gain direction) and it does not 
show patterns for the three element array.

I have used the two antenna design successfully by mounting two 14 AVQs on the 
metal roof of my workshop and switching in a quarter wavelength of coax with a 
remote relay box to reverse the direction of the cardioid or to produce a 
broadside signal..



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