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[TowerTalk] Comtek box

To: 'towertalk' <>
Subject: [TowerTalk] Comtek box
Date: Thu, 18 Nov 2004 13:48:56 +0000
List-post: <>
I'm a chemical engineer by education and experience and have a working 
knowledge of electronics, radio, and antenna design but am no expert at it.  I 
don't think I'm any less of a DXer than the next one and I just love my Comtek 
box.  I have it set up for 75M phone running Butternut HF2Vs (shortened ground 
mtd verticals).  On the air testing with EU stations yields the stated 4-6 dB 
gain and 20DB front to back and 18 dB front to side.   Each vertical has 55, 
132 ft. radials and measured dump power (using Diamond Wattmeter at phasing 
box) is 0% on 75, 10% on 80 CW, and also 10% on 40 (antennas are designed for 
40M also and system works on 40 but doesn't have much gain or front to back or 
side) and SWR in shack is always less than 1.5:1.  So maybe it's not optimum 
but it certainly ain't broke and therefore I don't try to fix it.  Cu on the 
lowbands, Phil  KB9CRY

See:  for "Self Supporting Towers", "Wireless Weather 
Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions 
and ask for Sherman, W2FLA.

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