[TowerTalk] Hi Gain Hi-Towers

Wayne Kline w3ea at hotmail.com
Wed Dec 19 10:07:08 EST 2012


 




Hi Roger
 
  The  small 24'  BX style towers are not the failure Point. it's the 44' stinger that's the area of failure !
Another friend who's of the DX- Expedition type suggested I opt for  the tapered  fiberglass poles. ! 
 
Still trying to model or see why the insulated  stinger at the top of the tower has such a remarkable effect ?
 
Wayne W3EA
 
( I am sorry for the post, I am not able to get  word  wraparound to function on this  reflector ! )  
 
> From: K8RI-on-TowerTalk at tm.net
> To: towertalk at contesting.com
> Date: Wed, 19 Dec 2012 08:52:36 -0500
> Subject: Re: [TowerTalk] Hi Gain Hi Tower ??
> 
> 
> 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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