On Jan 11, 10:37*am, Art Unwin wrote:
Thus the question is reduced from these other aproaches by asking the
question, why do antenna programs agree that a vertical antenna must
be tilted for best results?

What antenna programs are you describing, and for what parameters do
you think they show this?

Instead of stating your claim about "tilt" and then trying to coerce
others to prove you are wrong, why not take the initiative to try to
prove you are right?

RF