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[TowerTalk] 3.78 Mhz 4 square with Vertical Dipole

To: <towertalk@contesting.com>
Subject: [TowerTalk] 3.78 Mhz 4 square with Vertical Dipole
From: "Natale Borghetti" <i5nph@i5nph.net>
Reply-to: Natale Borghetti <i5nph@i5nph.net>
Date: Thu, 2 Sep 2010 18:49:58 +0300
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
I am considering to built a 4 share for 3.780 MHz by 4 sloping 1/2 dipole 
supported by 140 feet tower.

I have just simulated the system on EZNEC...but my results...contradict..what 
comtek suggest (to tune the 1/2 dipole 5% LOWER then the target 
frequency)..because when ALL 4 dipole will be in place the 4 square resonant 
frequency will be higher...

By simulation on EZNEC I saw exactly the opposite...seems the frequency of 4 
square is LOWER compared to the single Dipole....

I am....making..some mistakes ????...or...wrong..interpretation ???

Any 80 meter Guru..could Help on clarify the..strange results

73

Natale
i5nph
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