Looking at the 119 spot beam Yuma will be out of range of the Phoenix locals. That doesn't mean you will not be able to bring in the Phoenix channels. My local spot beams show me out of range just below Portland but in perfect weather I have pulled in my Seattle locals as far south as Newport on the coast and Bend inland. I mention the weather because we ran into cloudy/rainy weather in Newport and my locals went to SD or complete signal loss, next day clear blue skies and my locals were back to HD.
Here is the Phoenix
Spot Beam map. Hope this helps!
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