WWDJ (1150 AM, "Radio Luz") is a radio station broadcasting an Spanish Christian format. Licensed to Boston, Massachusetts, it serves the Boston metropolitan area. It first began broadcasting in 1934 on 1120 AM under the call sign WCOP. The station is currently owned by Salem Communications. History WWDJ first signed on in 1934 under the WCOP call letters (for the studio location, the COPley Plaza Hotel). Originally a daytime station, WCOP got the go-ahead to expand to 24-hour-a-day broadcast… (More on Wwdj)