KSFB

KSFB is an AM broadcasting station licensed on 1260 kHz at San Francisco, California. It broadcasts Immaculate Heart Radio, a Roman Catholic radio format, to the San Francisco Bay Area of the United States. It was previously known as KYA (AM) until 1983, and KOIT (AM) and KXLR after that.

The AM station was a simulcast of the former sister station KOIT-FM, and unlike that station, continued to be owned by Bonneville International until February 1, 2008, when it was officially sold to IHR Educational Broadcasting.

KYA

The station originated as KYA in 1926, and has had 14 owners and 4 different callsigns in 85 years. KYA was owned by everyone from Hearst Corporation to Avco Broadcasting of California, a subsidiary of the jet and aerospace contractor.

KYA went on the air on December 18, 1926, with 500 watts on 970 kc. from the Clift Hotel in San Francisco. The owners were Vincent I. Kraft of Seattle, who had started KJR (AM) there; and Frederick C. Clift of San Francisco. It got a license for 1,000 watts on 850 kc. in November 1927. Its studios moved to the Warfield Theatre Building at 988 Market Street, but the transmitter stayed at the Clift Hotel.