|
Product Name: XM Satellite Radio
Product Description
Hughes Space and Communications International, Inc., now Satellite
Development Center, and XM Satellite Radio
Inc. (XMTM) signed a contract March 23, 1998, for two 702 model
satellites, named "Rock" and "Roll". These satellites are
designed to provide state-of-the-art digital audio radio programming directly
to cars, homes and portable radios coast to coast. The contract, amended in
June 1998, calls for Boeing to deliver the high-power satellites in
geosynchronous orbit, using the Sea Launch vehicle. XM also has ordered
long-lead parts for a spare satellite.
Together, the two XM spacecraft will deliver up to 100 channels of
crystal-clear, digital-quality music, news and information to cars, homes and
other listening environments equipped with a small antenna. XM-capable radios
and audio systems will be marketed by Alpine Electronics, Inc., Delphi Delco,
Pioneer Electronics Corporation and the Sharp Corporation.
These satellites are among the most powerful ordered to date. Each is
designed to provide 18 kilowatts of total power at beginning of life. To
generate such high power, the two solar wings employ five panels each of
high-efficiency, dual-junction gallium arsenide solar cells. To provide 15
years' service, the Boeing 702 carries the flight-proven xenon ion propulsion
system (XIPS) for all on-orbit maneuvering. Alcatel Espace of Toulouse,
France, will provide the high-power, S-band, Digital Audio Radio Service
payload.
Stowed (left); In Orbit (right)
XM is one of only two companies licensed by the Federal Communications
Commission to provide Satellite Digital Audio Radio Service in the United
States. It is a privately held company owned by American Mobile Satellite
Corporation. Its strategic partners include Clear Channel Communications,
Inc.; DIRECTV, Inc.; the General Motors Corporation; Columbia Capital; Telcom
Ventures LLC; and Madison Dearborn Partners. American Mobile owns and operates
an integrated terrestrial/satellite network and provides a wide range of
mobile communications services, including digital voice dispatch, data
communications, dual-mode mobile messaging, position reporting services and
satellite telephone.
The XM satellites were built in the Los Angeles-area factory of Satellite
Development Center, the world's leading manufacturer of commercial
communications satellites. Boeing also supplies spacecraft for communications
and space exploration to the U.S. government, and builds weather satellites
for the United States and Japan.
XM SATELLITE RADIO SPECIFICATIONS
PAYLOAD
| S-band |
13.3 kw Digital Audio Radio
2 active transponders each w/16 active (6 spare)
228-w TWTAs |
POWER
Solar
Beginning of life
End of life
Panels |
18 kw
15.5 kw
2 wings, each w/5 panels of dual-junction gallium arsenide solar cells |
| Batteries |
56-cell NiH |
PROPULSION
| Liquid apogee
motor |
110 lbf (490N) |
Stationkeeping
thrusters
(all XIPS) |
4 x 10-6 lbf |
ANTENNAS
2 5-m (16.4 ft) folding deployable
S-band transmit reflectors
1 X-band global receiver |
DIMENSIONS
| In orbit |
L, solar arrays: 132.5 ft (40.4 m)
W, antennas: 46.6 ft (14.2 m) |
| Stowed |
H: 23 ft (7 m)
W: 11 ft x 10 ft (3.3 m x 3 m) |
Mass
Launch
In orbit
(beginning of life) |
10,297 lb (4,672 kg)
6505 lb (2950 kg) |
| Related Products: |
1080p Monitors True 1080p with the highest resolution on the market, 2 Way Satellite Splitters, 2000-DCT System Digital Clock Timer/Controller, 37 inch 1080p LCD Monitor LVM-37w1 True 1080p with 6 HD inputs, 37 inch 1080p LCD Monitor LVM-37w3 True 1080p with 6 HD inputs, 3A buck regulator offers high frequency, small footprint, 42 inch 1080p LCD Monitor LVM-42w2 True 1080p with the highest resolution on the market, 42 inch HD Monitor W4207 Energize your home theater with this vivid 42 inch HD Monito, 6000-AMFMCAS, 6000-MP Series, 72/75 Mhz Base Loaded Whip Antenna, A Short History of the Space Program:, Adaptive Reception Technique for Interference Cancellation, Advanced Lightweight Tactical Antenna, Advanced Manufacturing (Carleton Place, Ontario, Canada), Advanced Universal Reader Architecture Hardware, Advanced Universal Reader Architecture Software, AEK-4H SuperSense Evaluation Kit ANTARIS 4 Positioning Engine, AEK-4P GPS Evaluation Kit ANTARIS 4 Positioning Engine, AEK-4R GPS Dead Reckoning Evaluation Kit ANTARIS 4 Positioning Engine, AEK-4T GPS Timing Evaluation Kit ANTARIS 4 Positioning Engine, Aero C, Aero H/H+, Aero I, Aero L |
|
|
|
|
