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KPO 680 AM San Francisco, CA

You might call KPO the “mother” of one storied set of San Francisco call letters (KNBC) and the “grandmother” of another (KNBR). KPO came to life on April 17, 1922, broadcasting from the Hale Brothers […]

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KKIS 990 AM Pittsburg, CA

First heard in September 1949 with the call letters KECC (for Eastern Contra County County), Pittsburg’s new radio station had studios on Railroad Avenue in Old Town and a transmitter site across the San Joaquin River in […]