KKSF (910 AM) is a licensed broadcasting commercial radio station coming out of Oakland, California. The station is owned by iHeartMedia and serves the San Francisco-Oakland-San Jose media market. It operates as the Bay Area affiliate for the Black Information Network. The transmitter and twin tower array are located on Point Isabel in Richmond, on the San Francisco Bay. KDIA utilizes one of KKSF's two towers during the day. KKSF operates at 20,000 watts during the day and 5,000 watts at night, using a directional antenna at all times. Because radio waves travel farther at night, KKSF must reduce its power after sunset to protect other stations on AM 910. KKSF's studios are located in San Francisco's SoMa district.