On the air, Dave Roberts was a smooth if straight-ahead Bay Area radio disc jockey hosting the afternoon drive for KYA and K101. Off the air he was “Dr. Dave,” armed with a doctorate in communications research and a knack for launching and driving radio formats. Roberts died Saturday at his home in Rochester, Mich., from the complications of prostate cancer, said his wife, Marsha Kelliher. He was 70.

Dave Roberts, radio DJ who started KRQR the Rocker, dies at 70

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While decorating a cable car, I discovered the magic of San Francisco — again

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Dave Roberts, radio DJ who started KRQR the Rocker, dies at 70

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