The satellite, MBSat 1,[1] providing this service was jointly owned by SK Telecom of South Korea and Mobile Broadcasting Corporation (MBCO) of Japan;[2] TU, South Korea's now defunct S-DMB mobile television service under SK Telecom, used to share same satellite.
The satellite was a joint venture of SK Telecom of South Korea and Mobile Broadcasting Corporation of Japan.
This service used ISO MPEG-4 Version 1 Simple Profile @ L3 video and AAC audio encapsulated in MPEG transport stream.
Audio conformed to the ISO/IEC 13818-7 AAC LC (Low Complexity) profile, with maximum bitrate of 144 kbit/s and sampling rates up to 48 kHz.
A single 150 W Ku band transponder on MBSat, operated at 12.226 GHz and Symbol rate of 18433 was used to broadcast identical contents to "Gap-fillers" (re-transmission devices) which were planned to be installed in train stations and subways, and other areas where the S-band satellite beam would not reach.
music channels were produced in-house and featured popular genre in the Japanese and Korean languages for their respective markets.
They also carried several commercial and non-commercial FM stations from the west coast of the United States for English language, American Pop, Hip-Hop, Jazz, and various forms of old and new Rock.