"Reg Edwards" wrote in message
...

"Yuri Blanarovich" wrote in message
...
Reg wrote:
The type of antenna or its radiation pattern has nothing whatever
to
do with the path taken by the radio wave through the ionosphere.
The
take-off angle and its name, generated by EZNEC, can be very
misleading.


It has to do. It allows us to direct the RF under desired angle to
hit the
layer or region that supports the propagation to the chosen target.
=======================================
Yuri,

But you can't "direct" it.

You have to do your best with whatever elevation angle Eznec dictates.
----
Reg.


You bet I can, I can do that with stacked antennas, rotatable, polarization
switchable, phasing, crank up tower changing height antennas - and by what
antenna design and surroundings dictate, not EZNEC. EZNEC gives approximate
picture of radiation pattern produced by antenna model. Real life (ground
conditions, surroundings) changes the antenna pattern.
So I would be carefull giving EZNEC absolute powers dictating anything :-)
Combined with terrain analysis software, it will give better picture of
where the antenna projects the signal.

73 Yuri, K3BU