[TowerTalk] Hi Gain Hi Tower ??

Roger K8RI-on-TowerTalk at tm.net
Wed Dec 19 08:52:36 EST 2012


Why not guy them with phillystran or poly rope?

73

Roger K8RI

----------------------------------------
 From: "Wayne Kline" <w3ea at hotmail.com>
Sent: Sunday, December 16, 2012 9:28 PM
To: "towertalk at contesting.com" <towertalk at contesting.com>
Subject: [TowerTalk] Hi Gain Hi Tower ??

Hi fellow Tower Talkers.. . I built a 75/80 meter Four Sq, antenna system 
many years ago. It was feed with an original DX eng. ( not the new Dx eng 
co.) quadature. The  Hi Gain Hi towers were stripped of everything and a 
center  stinger was  built and   the system was resonantat 3.625 MHZ and 
the power dump at 3.500 was 70 watts and at 3.825 was 100 watts.  I used 
the two insulators at the two stinger vertical element with a 14ga wire 
attached at it's bottom and  travel down the inside of the 24ft base tower 
attaching at the feed point. There are 108 evenly spaced 1/4 radials under 
each antenna, with silver soldered connections at there interesting 8ga 
copper X and 9-  8 ft  5/8" ground rods.  One at each tower base, one at 
the control box in the center  of the array and 4 at the end of the 
centered X wire.I had a few 80 meter ops who felt that because I insulated 
the top 38' stinger  at the top of the tower resulting in a Shorter over 
hight antenna was a compromise.    So I 
got in touch with tim K3LR knowing he also had a 75/80 meter 4 SQ mad out 
of Hi-Gain Hi Towers, He sent me a rough dimension of his stinger out the 
top of his Hi-Tower. I  un insulated the stinger  and built my elements  
and achieved resonance with an additional 9ft height.Well it seemed My WX 
in eastern PA did not like the 48' stinger  and I would loose one at almost 
every  Nor'easter Storm.      SO I am thinking of going back to the 
original configuration with insulated  top 2" tuber and the 14 ga wire down 
the center of the tower to the base.  Thought's out there  Just kicking  
around  ideas ? Wayne W3EA   		 	   		  
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