[TowerTalk] Wilson 5 element 20 meter monobander

[Joe Subich, K4IK]

> From: Mark - AA6DX
>
> What a diff 6 feet make ... had a Wilson DB54 with 40 foot 
> boom, just was not as hot ..  

The Wilson DB54 was a dual band 20/15 (5 el/4 el) antenna.  As 
I recall the 20 meter elements were fairly evenly spaced to 
provide "room" for the 15 meter elements.  As I recall, the 
Wilson antennas also used gamma matches that were not the best 
ever designed.  

If it were modeled using modern software, I suspect the 20 meter 
section would be far from optimum and the 15 meter elements 
introduce destructive interaction. 

YO shows a relatively insignificant .5 dB increase in gain between 
optimized 5 element designs on 40 and 46 foot booms. 

73, 

   ... Joe, K4IK