Art wrote:
"Chris, what I believe he is referring to is that computer programs
support a tipped vertical over one at right angles to earth."

Quick! Tell your local broadcaster.

We don`t need theory to show that antennas for transmitters and
receivers work best together when they are exactly parallel in space
unless something in the transmission path is redirecting the
polarization of the signal. In aligning microwave antennas humdreds of
times, I`ll swear this is true every time, regarfless of Corriolis, no
matter which side of the equator I was on. Try it. You`ll be convinced
too.

Best regards, Richard Harrison, KB5WZI