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Topband: Fwd: RE: VE3DO Antenna

To: topband@contesting.com
Subject: Topband: Fwd: RE: VE3DO Antenna
From: Bill Tippett <btippett@alum.mit.edu>
Date: Thu, 03 Jan 2008 11:06:02 +0000
List-post: <mailto:topband@contesting.com>
W4TV:

 >My modeling shows The "DO Loop" to behave essentially the
same as the classic K9AY although the VE3DO lacks the high
angle back null of the K9AY.

         I agree.  If this antenna was better than a 1000'
Beverage, it was most likely because propagation was at high
angles.  A good Beverage has poor response above 45 degrees TOA.  The 
DO Loop *peaks* at 43 degrees TOA and is only down
~2 dB at 90 degrees (i.e. straight up).  A low dipole should
work a little better for very high angles.

                                 73,  Bill  W4ZV

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