KFTV-DT (Univision) · Channel 21

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 316 kW effective radiated power, KFTV-DT runs more power than 52% of full-power TV stations nationwide (median: 273 kW).

Its antenna sits 610 m above the average surrounding terrain, higher than 88% of full-power stations. Taller antennas see farther: this one's radio horizon is roughly 71 miles, beyond which the signal fades quickly.

We estimate a fair-or-better signal out to about 78 miles with an outdoor antenna. That area includes 88 cities and towns in our guide with about 1,650,000 residents, as far as Los Banos, CA (78 miles).

KFTV-DT shares its transmitter site with KTFF-LD, KZMM-CD, KNSO (Telemundo), KAIL, KBID-LD and KVBC-LD (ION) and 8 more. One antenna aimed at this site picks up all of them.

The nearest other Univision station in our data is KUVS-DT in Modesto, CA, 101 miles away. Viewers between the two can sometimes receive both.

Univision is the largest Spanish-language broadcast network in the U.S., carrying telenovelas, news, entertainment and soccer.