[Antennas] Would vertical be better than yagi? Maybe...

[DJ5IL@aol.com]

W1CG@QSL.net wrote:

> One big advantage of a Yagi compared to a dipole, is it's take off angle
> is lower.  I modelled the field day Moxon Rectangle antenna in June 2000
> QST for 40 meters with EZNEC, and also modelled a vertical and dipole
> at the same height for comparison purposes.

Chas,

if mounted at the same height above the same ground, dipole and yagi 
definitely have the same optimum take-off angle and a difference would not be 
consistent with wave reflection theory. If you got other results from your 
simulation, you are either using and old EzNEC version (which used an 
inaccurate ground model for low heights) or you specified different ground 
charactersitics. Could you please email me me your .EZ files ? Which EzNEC 
version are you using ? 

P.S.: I will mail you more info very soon on my findings concerning the 1:4 
Guanella on one core ...

73
Karl, DJ5IL