Quote:
Originally Posted by JoeAZ
I cannot help but wonder if the polarization was changed, if the F.C.C. database is correct or if the engineer was mistaken.
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I'd guess that the engineer was wrong. Perhaps he was thinking about a different facility. The Jampro antenna listed is Hpol only. The FCC application does not mention a CP antenna.
The ability to pick up a signal while your antenna was mounted vertically indicates significant depolarization due to refraction off the mountains.
In mountainous locations antenna height can make a huge difference. You can try moving your antenna up or down to see if reception improves. Scientifically, you can calculate the angle to to the mountain, determine the slope in front of the antenna, and use ray tracing techniques to get a good starting point. I don't know where you live in Prescott, but you may find that an antenna several feet off the ground with nothing in front of the antenna might be better than the roof.