[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