KFAX
| 
 | |
|---|---|
| Broadcast area | San Francisco Bay Area | 
| Frequency | 1100 kHz | 
| Branding | AM 1100 K-F-A-X | 
| Programming | |
| Format | Christian talk and teaching | 
| Affiliations | Salem Radio Network | 
| Ownership | |
| Owner | 
 | 
| KDIA, KDOW, KDYA, KTRB | |
| History | |
| First air date | January 3, 1925 | 
| Former call signs | 
 | 
| Call sign meaning | Adopted in 1960 when station had all-news format | 
| Technical information | |
| Licensing authority | FCC | 
| Facility ID | 24510 | 
| Class | B | 
| Power | 50,000 watts | 
| Links | |
| Public license information  | |
| Webcast | Listen Live | 
| Website | 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.