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Communications and broadcasting satellite family members among the stars 6B satellite – radio and television network of industry
Communications and broadcasting satellite family members among the stars 6B satellite – radio and television network of industry
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Home Page > Business > Human Resources > Communications and broadcasting satellite family members among the stars 6B satellite – radio and television network of industry
Communications and broadcasting satellite family members among the stars 6B satellite – radio and television network of industry
Posted: Oct 18, 2010 |Comments: 0
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Star 6B satellite in China Satellite Communications Corporation in July 2005 to the French Virginia Aerospace, Inc. (Thales) Order of the communications and broadcasting satellite, was in July 2007 5 in China, Xichang Satellite Launch Center Long 3 B rocket, was successfully positioned at longitude 115.5o.
1, Satellite Design Principles Satellite platform and payload optimization of advanced and mature technology and design to ensure long life and high reliability. Select France SB4000 satellite platform, the design power of 9000 ~ 10000W, design life of more than 15 years; star on the fuel, solar panels output power, has Battery And traveling wave tube Amplifiers So there is a certain margin, or back up, launch insurance and meet the needs of in-orbit lifetime.
Satellite downlink coverage in Asia and Oceania, down the equivalent isotropic radiated power in the coverage area is greater than 35dBW above, the satellite antenna configuration more vice to form a variety of beam coverage, the satellite transponder can be used flexibly to meet the user voice, data, image and multimedia transmission service needs.
2, the state of satellite technology
6B satellite in satellite design life of 15 years, the service life of 16.5 years. Satellite size 2.25m × 2m × 4.5m, satellite dry weight 1847kg, a launch weight of 4516kg, solar panels for the north and south solar wings, each wing formed by the four, the maximum output power of 10400W, currently, the normal output power of 9670W, end of life power of 8500W. On-load when two groups 92A Ni-MH batteries, 54 batteries each monomer. Track keeping accuracy of ± 0.05o, antenna pointing accuracy 0.13o, the end of satellite life reliability of 0.75.
Satellite payload design considerations application requirements, make full use of the resources of C-band, standard and extended frequency band, occupying a bandwidth of 1.6G. Configure the satellite transponder 38, a bandwidth of 36MHz, traveling wave tube amplifier power 82W, Transponder 24, prepared for the two groups of 19, communication receiver preparation for the 6 4. Polarization isolation is: China and the surrounding areas> 33dBW, other coverage area 30dBW.
For the convenience of users, configure a 1.4m satellite antenna and two 2.4m antennas, respectively, the formation of the Asia-Pacific, regional and national beam.
Satellite downlink coverage area to all of China, Mongolia, the Korean Peninsula, Japan, Russia, parts of Asia, South Asia, Southeast Asia, Central Asia, West Asia, Australia, New Zealand, covering areas EIRP (equivalent isotropic radiated power): 36 44.5dBW.
Downlink EIRP: Beijing, Shanghai, Guangzhou, Kunming, Lanzhou, connecting the central area 42dBW, the Chinese territory (except the South China Sea) 41dBW, the South China Sea 40dBW, Asia, Australia, most of 37dBW, New Zealand and Some South Pacific islands 36dBW.
SFD (saturation flux density): -70 ~ 95dBW/m2.
G / T =- 5dB / K (Asia beam).
Beacon frequency: Horizontal 4199MHz, vertical 3701MHz. Chinasat 6B
Frequency Counter Planning Map 6B satellite downlink in the satellite coverage map (3920MHz)
3, satellite operations and services
China Satcom satellites in order to ensure the healthy operation of building in the life of a satellite control stations and satellite communications control center, weather monitoring and management of satellite body and the operation of communication services.
(ArticlesBase SC #3493968)
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