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Loral To Build Japanese Mobile Bird

MBSAT will provide 2400 watts RF power over 25 MHz of S-band spectrum to run more than 50 channels of audio and video from 16 S-band transmitters operating at 120W. In addition, the satellite will provide a 25 MHz Ku-band service link to transmit the broadcast signal to terrestrial repeaters. The satellite will generate more than 7,400 watts of DC power continuously throughout its 12-year life.

New York - Dec 18, 2001
Space Systems/Loral (SS/L), a subsidiary of Loral Space & Communications, today announced that it has finalized a contract with Mobile Broadcasting Corporation (MBC) of Japan for construction of the MBSAT communications satellite. MBSAT will deliver digital multimedia information services such as CD-quality audio, MPEG-4 video and data to mobile users throughout Japan. On-orbit delivery of the spacecraft is scheduled for fourth quarter 2003 with service expected to begin in early 2004.

In 2001, SS/L has booked five new satellites, bringing its current backlog to $1.6 billion.

MBC's services will be the first in the world to deliver high-quality music, video and data to mobile users through various kinds of mobile receiver terminals, including those in cars, ships, trains, handheld terminals, personal digital assistants (PDAs), cellular phones and home portables. A very small antenna will be sufficient to receive MBC broadcasting signals even inside office buildings and in vehicles moving at high speed. MBC will supplement its satellite service with terrestrial signal repeaters.

"We are extremely proud that Mobile Broadcasting Corporation has selected SS/L to build its newest state-of-the-art satellite, MBSAT," said C. Patrick DeWitt, president, Space Systems/Loral. "We value the confidence that MBC has in SS/L's ability to deliver a reliable, powerful and flexible spacecraft."

MBSAT will provide 2400 watts RF power over 25 MHz of S-band spectrum to run more than 50 channels of audio and video from 16 S-band transmitters operating at 120W. In addition, the satellite will provide a 25 MHz Ku-band service link to transmit the broadcast signal to terrestrial repeaters. The satellite will generate more than 7,400 watts of DC power continuously throughout its 12-year life.

MBSAT's S-band payload will deliver CD-quality audio and TV-quality video, in addition to various types of data, using code division multiplexing (CDM) MPEG-4 for video, and advanced audio coding (AAC) for audio. The system will be able to broadcast more than 50 programs simultaneously.

The new spacecraft will be a version of SS/L's space-proven three-axis, body-stabilized 1300 bus, tailored to meet the specific requirements of MBC which include a 12-meter antenna reflector deployed in orbit to transmit the MBC programming. SS/L's satellites are designed to achieve long useful orbital life through use of bipropellant propulsion and momentum-bias systems for excellent station-keeping and orbital stability. A system of high-efficiency solar arrays and lightweight batteries provide uninterrupted electrical power. SS/L satellites have amassed more than 850 years of reliable on-orbit service.

Mobile Broadcasting Corporation was established to provide cars and mobile terminals with digital satellite broadcasting for audio, video and data services throughout Japan. MBC's new broadcasting system was authorized by the Japanese Government and registered with the ITU. Already the system capabilities and high performance quality have been successfully verified in dense urban locations by various field demonstrations in the Shinbashi and Ginza area of Tokyo. Dedicated first generation receiver LSI chips have been evaluated through extensive tests. The second-generation receivers with high density LSI technology will be available by mid-2002.

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