KDFC

KDFC (89.9 FM) is a non-commercial radio station licensed to Angwin, California, USA, and serving the Santa Rosa area. The station broadcasts a classical music format, simulcasting KOSC in San Francisco. The programming is also simulcast on KXSC in Sunnyvale, serving the San Jose area and parts of southern San Mateo and Southern Alameda Counties. The three stations are all branded as "KDFC", and are both owned by the University of Southern California, via its Classical Public Radio Network. KDFC is the radio home of the San Francisco Symphony and the San Francisco Opera.

The KDFC-FM call sign and programming were previously assigned to 102.1 FM, from its inception in 1946 until January 2011, when the format and intellectual property moved to the former KUSF. The University of Southern California also acquired the 89.9 FM frequency in Angwin, California and its two translator signals in Eureka and Lakeport. The KDFC call sign was officially assigned to the Angwin station.

89.9 FM frequency history

KRBQ

KRBQ (102.1 FM) is a radio station in San Francisco, California. It is owned by Entercom Communications and currently airs a Classic hip hop format. The 102.1 frequency transmits its signal from Mount Beacon atop the Marin Headlands above Sausalito, California, while studios are located in the SoMa district of San Francisco.

History

Classical KDFC (1946-2011)

The station was founded in 1946 by station owner Ed Davis and programmed a Classical music format as KDFC. It remained a Classical station for most of its history, though at one point during the 1950s, it featured a beautiful music format. The station also simulcasted on KIBE, a daytime-only 5 kW AM station in Palo Alto, California that began broadcasting in 1949 from a transmitter near the western approach to the Dumbarton Bridge. It is now a news-talk station. It also had a booster station in Concord, which fills in coverage gaps caused by topography issues.

In 1993, Ed Davis' company Sundial Broadcasting sold the AM and FM to Brown Broadcasting Corporation (BBC) for $15.5 Million. In 1996 BBC sold the FM station and AM simulcast sister station AM 1220 to Evergreen Media, who in turn sold the FM to Bonneville Broadcasting and the AM to Douglas Broadcasting.