Radio Cooperativa, founded on February 17, 1935, and headquartered in Santiago, Chile, is a news radio station operated by Compañía Chilena de Comunicaciones S.A. The station gained prominence for opposing the Augusto Pinochet dictatorship (1973-1990) and denouncing its human rights violations at a time when such reports were federally suppressed. The broadcaster, which maintains historic ties to Chile’s Christian Democratic Party, operates on AM frequencies 660 and 1140/1150 kHz.