KSOL 98.9 FM ("98.9 y 99.1 Que Buena") is a Spanish language radio station in San Francisco, California. KSQL (99.1 FM) simulcasts the station in Santa Cruz. KSOL and KSQL program a format consisting of regional Mexican music and talk shows. Both stations are owned by Univision. Its studios are located at 1940 Zanker Road in San Jose, and the KSOL transmitter is on Mount Sutro.
There are two booster stations for this station: KSOL-FM2 in Sausalito since 1992, and KSOL-FM3 in Pleasanton since 1997.
The 98.9 frequency is the third station in the San Francisco market to use the callsign KSOL. The first was the AM rhythm and blues station at 1450 AM (the current KEST). Sly Stone was influential in guiding KSOL into soul music and started calling the station K-SOUL. The second was a popular soul music station (sans the K-SOUL moniker), at 107.7 FM (now known as KSAN). The current KSOL is unrelated to the previous two stations. Source