FM Osaka (エフエム大阪) is an FM radio station in Osaka, Japan. The station is an affiliate of Japan FM Network (JFN).FM Osaka started broadcasting on April 1, 1970. It was the second commercial FM radio station to launch in Japan after FM Aichi. During its early years, FM Osaka transmitted from Mount Ikoma but later moved to Mount Iimori.FM Osaka's main studios are located at "Minatomachi River Place" in Minato, Naniwa, Osaka, in use since July 22, 2002.