KFAX

KFAX (1100 AM) is a commercial radio station licensed to San Francisco, California, and heard around the Bay Area. Since 1984, the station has been owned by Salem Media Group and programs a Christian radio teaching and talk format. The studios and offices are in suburban Fremont and the transmitter is in nearby Hayward, near the San Mateo–Hayward Bridge. KFAX broadcasts with 50,000 watts, the highest power permitted for AM stations, but because 1100 AM is a clear channel frequency reserved for Class A WTAM in Cleveland, KFAX must use a directional antenna to avoid interference, aiming most of its signal away from the east. The station is the most powerful Christian formatted AM station west of the Mississippi.

The station now assigned the KFAX call letters was first licensed in 1925 as KFUQ, and made its first broadcast on January 3, 1925. This change in broadcasting power required the station to operate one of the most distinctive schedules in the history of broadcasting. It operated from a directional set of four towers in the suburban town of Hayward from 6:00 a. m until local sunset, then from the Pine Street 1,000 watt transmitter from 10:00 p. m. until 3:00 a. m. (when Cleveland's WTAM would come back on the air, at 6:00 a. m. Eastern time). During the summer, this meant that KFAX was off the air for only 1.5 hours (8:30 sunset until 10:00 p. m.).

In 1960, KJBS was sold to Argonaut Broadcasting for $425,000. On May 16, 1960, its call sign was changed to KFAX and it changed formats from music, news and sports to become the first all news radio station in the US. This format drew listeners but was unprofitable and it was changed the following year. KFAX later adopted a religious format, with Christian music and religious talk. In 1977, KFAX began operating with 50,000 watts full time, using a directional array. In 1984, KFAX was sold to Salem Media Group, an operator of both religious and secular talk stations. KFAX runs programs such as Dr. Charles Stanley, Jay Sekulow and "Life! Line" with Craig Roberts (the Bay Area's longest running conservative talk show).

In light of a radio often being the first electrical device in a home not connected to centrally generated electric power, both the Cleveland based Willard Storage Battery Company and a local outlet for Willard Batteries founded and owned stations in the early 1920s, as with WTAM in Cleveland (9 months' ownership) and KJBS (apparently for several decades). In this case, however, these two stations with an early link began in 1941 sharing clear channel use of the 1100 kHz frequency.