[FoxHunt] Turnstile antennas for 2M

Bruce [email protected]
Fri, 16 Jan 2004 11:41:53 +1100


bob wrote:
> No not true or very true. The Yagi and most directional antennas are 
> directional in both planes about the same. The ground interaction causes 

I was simply going by the plots that my original Yagio optimisation 
software plotted. It gave both horizontal and vertical plots. It seemed 
the horizontal always gave a better front-to-rear ration (not the same 
as front-to-back ration) and a better shaped forward lobe. Maybe the 
effects in practice are too subtle to notice, but teams here still mount 
  their car Yagi antennas horizontally even though the signal 
transmitted varies between horizontal and vertical.

The forest refections were something I hadn't considered, but may well 
be a factor.
Also, what is it with pine trees and 6m ? If anyone has ever tried to DF 
6m whilst in a pine forest they'll know what I mean !
-- 
Cheers,
Bruce