[TowerTalk] Choke on feed point of dipole

[kq2m at kq2m.com]

> It's sort of like ionospheric propagation - you can use VOACAP and it's 
> ilk, which make some simplifying assumptions (Chapman layers, etc.) or 
> you can just use PHARLAP (which is a full on 3D raytracing).  

Or you can operate a lot and learn how propagation actually works in 
real-time by observing the constant changes in path, wave-angle, signal 
strength, etc. and have fun working people too!

And then, when you become a propagation master, you can start to predict 
what will happen next just by listening to subtle changes in the band 
noise.  That's way beyond VOACAP or any propagation program that exists.

73

Bob, KQ2M