[hakfoo]

Phoenix has a nominal channel 5, but it's on RF 17. There's only two notable broadcasters on VHF, both above the FM band (8 and 10).

https://www.rabbitears.info/searchmap.php?request=result&stu...

[RF_Enthusiast]

I checked another source just to be sure, but you're right! Phoenix has an empty lower-VHF dial!

Prescott (Ch 6), Yuma (Ch. 2) and Tucson (Ch 4) have the lower-VHF stations in that region.