[TowerTalk] Tall verticals

[n4kg@juno.com]

I recommend  against  shunt feeding tall towers
with side mounted antennas.

I had a 130 ft R35 tower with a 3L15 on top and 3L20 
side mounted at 63 ft along with an 80M inverted vee
at 110 ft.  It worked on 160 but was noticably less
competitive after I added the side mounted 3L20.
I believe it altered the current flow in the tower and
suspect there was a phase reversal in the upper 
half, partially cancelling the vertically polarized 
radiation.

de  Tom  N4KG
 

On Tue, 4 Apr 2000 20:57:58 -0400 "Scott Detloff K8DX" <ni8l@raex.com>
writes:
> 
> Would like to know if any one out there has any real world
> experience with very tall verticals.  I'm thinking about shunt
> feeding a 170' tower that will have full-sized 3/3 on 40M.
> 
> A few years ago I had a full-size quarter waver vertical for
> 160M that was hung off this tower, just 60' away, and it was
> a killer.  
> 
> Any ADVANTAGES to shunt feeding the tower, other than 
> getting 160M another 60' away from the 80M 4SQ?  Any
> disadvantages?
> 
>  73...Scott K8DX
> 
> 
> --
> FAQ on WWW:               
> http://www.contesting.com/towertalkfaq.html
> Submissions:              towertalk@contesting.com
> Administrative requests:  towertalk-REQUEST@contesting.com
> Problems:                 owner-towertalk@contesting.com
> Search:                   http://www.contesting.com/km9p/search.htm
> 

________________________________________________________________
YOU'RE PAYING TOO MUCH FOR THE INTERNET!
Juno now offers FREE Internet Access!
Try it today - there's no risk!  For your FREE software, visit:
http://dl.www.juno.com/get/tagj.

--
FAQ on WWW:               http://www.contesting.com/towertalkfaq.html
Submissions:              towertalk@contesting.com
Administrative requests:  towertalk-REQUEST@contesting.com
Problems:                 owner-towertalk@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm