KVOA (NBC) · Channel 4

Full-power stations are the main licensed broadcasters in a market. They may run the highest power from the tallest towers and are protected from interference, so they set the core of what you can receive.

At 405 kW effective radiated power, KVOA runs more power than 57% of full-power TV stations nationwide (median: 273 kW).

Its antenna sits 1,123 m above the average surrounding terrain, higher than 98% of full-power stations. Taller antennas see farther: this one's radio horizon is roughly 93 miles, beyond which the signal fades quickly.

We estimate a fair-or-better signal out to about 100 miles with an outdoor antenna. That area includes 84 cities and towns in our guide with about 2,900,000 residents, as far as Tempe Junction, AZ (99 miles).

KVOA shares its transmitter site with KTTU (CW), KMSB (Fox), KOLD-TV (CBS), KGUN-TV (ABC), KUAT-TV and KUDF-LP and 3 more. One antenna aimed at this site picks up all of them.

The nearest other NBC station in our data is KPNX in Mesa, AZ, 101 miles away. Viewers between the two can sometimes receive both.

NBC is one of the four big commercial broadcast networks. Local NBC affiliates carry the national morning show, evening news and primetime lineup, plus Sunday Night Football and, in Olympic years, the Games.