Osaka Broadcasting Corporation (大阪放送株式会社, Ōsaka Hoso Kabushiki-gaisha, OBC) is an AM radio station of National Radio Network (NRN) in Osaka, Japan, and it is known as "Radio Osaka (ラジオ大阪 Rajio Ōsaka)".
It is also a company of Sankei Shimbun Group in Fujisankei Communications Group.
Radio Osaka started broadcasting on July 1, 1958.

The Headquarters - ORC200, 2-4, Benten Itchome, Minato-ku, Osaka, Osaka Prefecture, Japan

Tokyo office - Musashi 7 Building, 2-4, Ginza Nanachome, Chūō, Tokyo

1958 - 1971: 1380 kHz, 3 kW

1971 - 1978: 1310 kHz, 50 kW

1978–Present: 1314 kHz, 50 kW

Osaka - 1314 kHz, 50 kW; 91.9 MHz FM

Kyoto - 1314 kHz, 300W

Total:50.3 kW to 55 kW

880 Hz (A5)

The "OBC Song (OBCソング)" (lyrics by Akiyuki Nosaka (野坂 昭如), music by Taku Izumi (いずみ たく)) is Japan's first commercial broadcasting station's song produced in 1961.

The present headquarters and performance place are located on the fourth floor of the harp hall of the large-sized building "ORC200" near Bentencho Station in Benten Itchome, Minato-ku, Osaka, Japan, and the stereophonic broadcast is performed from the time transferred here.

MBS Radio (MBSラジオ, Emubīesu Rajio) is an AM radio station based in Osaka, Japan.
It is wholly owned by Mainichi Broadcasting System, Inc.

It is a member station of Japan Radio Network (JRN) and National Radio Network (NRN).

JOOR

Frequency: 1210 kHz → 1180 kHz → 1179 kHz; 90.6 MHz FM

Power

Osaka: 50 kW

Kyoto: 300 W

Broadcasting hours: from 4:30 on Mondays until 26:30 on Sundays (with daily starting at 4:00 from Tuesday until Sunday)

Time signal: 1046.502 Hz (C6, on the hour every hour)