Spike wrote:
On 08/03/15 14:22, Ralph Mowery wrote:

I think that Jeff may be on to something. What you need to do is download
one of the antenna modeling programs. Set it up for the antenna type you
want. Then you can look at the patten and see the take off angle. The take
off angle is what determins the ammount of power you have the differant
types of propogation.

That's an interesting thought, and one that had crossed my mind.
However, modelling is only as good as the modeller, and if things are
set up to model only the sky-wave component, I might not get the sort of
information I'm looking for. BICBW, as I've no experience of this.

It is obvious you have no experience.

Antenna modeling programs DO NOT MODEL PROPAGATION.

Antennas have little to no direct relationship to propagation modes other
than putting a main lobe where some particular propagation mode may or
may not exist at some particular frequency at some particular point in
time.


--
Jim Pennino