Meeting in the Star on the 9th and the Star 6B, Sino technical difference betwee
Abstract: This article from satellite radio and television reception technology point of view on the current satellite radio and television coverage of the stars on the 9th, the Star 6B and Sinosat 3 satellite from the basic situation of the receiving object, transport system, using the band and antenna polarization modalities were compared, but also pointed out that the direct broadcast satellite in the Star on the 9th of the enormous space for development.
Order to improve satellite Radio and TV The signal transmission quality, allow more users to listen to the radio and watch TV, Aug. 1, 2007, China's satellite broadcast satellite television signal transmission have been adjusted, the original by the Asian 3S, Asia 4, Pacific No. 6, Asia-Pacific 2R, Zhongwei 1 and Sinosat 1 satellite transmission of the central and provincial radio and television programs to adjust to the stars 6B and the Sino 3. June 9, 2008, China successfully launched the first dedicated to radio and television coverage DBS , No. 9 in the successful launch of satellite to further promote the development of China's satellite broadcast television. This article from the technical point of view on the current satellite radio and television signals our commitment to transfer the task to distinguish between three main satellite. Comparison of three satellites basic information
In Star 9 Satellite is a high-power, high-reliability, long life radio and television broadcast satellite, positioned at 92.2 degrees east longitude above the equator, provided by the ITU BSS frequency band, with 4 and 18 54MHZ 36MHZ transponders. Main coverage areas are China (including Hong Kong, Macao and Taiwan).
In Star 6B positioned at 115.5 degrees east longitude, with 38 36MHZ bandwidth C-band transponders, mainly covering China, Mongolia, the Korean Peninsula, Japan, Russia, parts of Asia, South Asia, Southeast Asia, Central Asia, West Asia, Australia, New Zealand .
Sinosat 3 positioned at 125 degrees east longitude above the equator. Is a dedicated radio frequency C Communicate Satellite. Has 10 36MHZ bandwidth C-band transponders, covering the whole territory of China and surrounding countries and territories. Satellite EIRP throughout China over 40DBW, provincial capital cities of the quality factor G / T was more than 0DB / K, satisfy the central, provincial capitals, municipalities directly under Satellite TV Program transmission using the request for nationwide radio and television stations, radio transmitters and Cable television Net and other agencies to provide high quality, high-reliability radio and television programs uplink and ground receiving services. After the two satellites from the coverage can be seen, the two are mutually supportive, each focusing on the relationship. Sino 3 10 C-band transponders, coverage is limited to domestic, international channels for as CCTV and a number of provincial propaganda on foreign satellite channels becomes a bit inappropriate, and the stars than before, the signal coverage reduced, making the Asia-Pacific region to receive the Chinese audience can not be a good program. While the 6B satellite coverage is very extensive, and fairly before the stars, stars on the 38 transponder C-band high-power can not only meet the domestic program of foreign propaganda, but also for future satellite programs to provide additional strong support and protection.
Receiving different targets The star on the 9th was devoted to " Villages "Project of the live broadcast satellite, free remote and poor areas and some 48 sets of television programs broadcast. The direct-to-home satellite use of signal transmission, that is, individual users only need to install the use of smaller diameter satellite antenna and receiver can directly hear radio and watch the central and provincial office TV Programs, particularly large herdsmen in Inner Mongolia for a similar user needs. Chinasat 6B, Sino No. 3 is all over radio and television stations, radio transmitters, and cable television networks and other agencies to provide high-quality, high reliability of radio and television uplink and ground receiving services. From a technical point of view, the two satellite TV programs, individual users with the appropriate receiving equipment can also be smooth to receive satellite radio and television programs. China currently does not spread to the local cable television, some of the user is through the satellite 6B, Sino television receiver 3. It should be clear is that The People's Republic of China State Council Order No. 129, "satellite television ground receiving facilities management requirements," Article IX provides that: individuals are allowed to install and use satellite ground reception facilities. In exceptional circumstances, individuals do need to install and use satellite ground receiving facilities and in accordance with the State Council Broadcast Film TV executive department under the license conditions must apply to the unit, by the local county and city government radio and television administrative part of the consent of the provincial, autonomous regional and municipal people's government radio and television administrative department for approval.
Transmission system using different
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