Onagawa FM has a history for 24 hours broadcasting of quality radio programmings. This is a radio based in Japan. Onagawa FM broadcasts various types of songs specially Japanese and pop, with different types of songs at the different time of the day. They plays songs that suits perfectly for the time of broadcasting.
Onagawa FM official website address is www.onagawafm.jp
If the Radio is extremely choppy and stops every 5 seconds, try listen to this Radio at different time.
Not all Radio Stations function for 24 hours everyday. If you can't listen to any Radio, try to listen at different time, as the Radio Station may stop during midnight according to its own country time zone.