Vile 5 wrote:
"And all the cust service responses from various cell phone antenna
sites say there is not much for 900, 1000, 1100 mhz which is what the
specs say on the phone."

That`s reasonable. Cell phones communicate with whichever base station
works best in a wide network. This is almost the ultimate space and
frequency diversity system. Antennas are low which limits range. No
problem as contact is lost it is immediately re-established
automatically with another station, the new best choice.

As azimuths between phones and bases are constantly changing,
concentrating phone energy at a articular azimuth does not make sense if
the phone is moving.

Efficiency makes sense. Concentrating energy along the horizontal makes
sense for most users.

Best regards, Richard Harrison, KB5WZI