from Mt. San Bruno at an effective radiated power of 6,400 watts. A low-powered booster in Pleasanton, California fills in East Bay coverage gaps caused by topography issues. From the time KKSF started its new adult contemporary format in 1987 to mid-1996, the station used very light audio processing in order to create a signature sound. It was based on the Schulke Beautiful Music approach of having a very light touch to the audio. KKSF's chief engineer, Tim Pozar — who was also one of the co-founders of San Francisco's first ISP, TLGNet — installed an Aphex Systems audio chain of a Compellor and Dominator along with a Digicoder, which was one of the first digital stereo generators. References External links Media KKSF Domain MarkMonitor Clear Channel HD in San Francisco SFAF Sampler 17 OSF Classic hits radio stations in the United States 1980s-themed radio stations Radio stations established in 1947 1947 establishments in California IHeartMedia radio stations