Broadcasting Satellite (Japanese)
- Broadcasting Satellite (Japanese)
Broadcasting Satellite or BS is a common name of Japanese communication satellites.
First ever satellite of this series, called BSE or Yuri was launched in 1978, last satellite of BS series or BS-3b was launched in 1991.
The 350-kg BSE was followed in 1984 and 1986 by the operational and essentially identical BS-2a and BS-2b, respectively. Each spacecraft carried two active and one spare 100 W. 14/12 GHz transponders. Built by Toshiba with assistance from General Electric, the BS-2 series were designed for five years of operations. BS-2a was moved to a graveyard orbit in 1989, followed by BS-2b in 1992.
BS satellites were used for Direct-To-Home satellite service in Japan. Japanese satellite television, which uses an analog format, started with test broadcasts carried out by the semigovernmental NHK (Japan Broadcasting Corporation) in 1984. It was considered that direct satellite TV reception (DTH) was obtained by a small parabolic antenna from 40 cm to 60 cm in all areas of Japan from the geostationary earth orbit (GEO) of 110 degrees of east longitude. All BS satellites have been of the same basic configuration: 3-axis stabilization of a rectangular spacecraft bus with two elongated solar arrays. After first successful test of satellite broadcasting of TV signal many Japanese producers of consumer electronics began to deliver on local market various consumer home electronic goods equipped by built-in satellite receivers.
Finally, satellites of BS series were replaced by more advanced B-Sat series.
Satellites
References
External links
* [http://www.globalsecurity.org/space/world/japan/bs.htm BS-Japan and Satellite Communication Services]
* [http://www.nhk.or.jp/strl/publica/dayori-new/en/toki-0112e.html Broadcasting Technology and Time]
* [http://72.14.221.104/search?q=cache:iasHySXhqvoJ:www2.nict.go.jp/mt/b150/SJR/English/english12-1/eiseiyowae.pdf+BS-3+satellite&hl=ru&gl=ru&ct=clnk&cd=3 Satellite Commentary]
* [http://www.weblio.jp/content/Broadcasting+Satellite+2 Broadcasting Satellite 2]
* [http://www.weblio.jp/content/Broadcasting+Satellite+3 Broadcasting Satellite 3]
Wikimedia Foundation.
2010.
Look at other dictionaries:
broadcasting — /brawd kas ting, kah sting/, n. 1. the act of transmitting speech, music, visual images, etc., as by radio or television. 2. radio or television as a business or profession: She s training for a career in broadcasting. [1920 25; BROADCAST + ING1] … Universalium
Japanese media — The communications media of Japan include numerous television and radio networks as well as newspapers and magazines. For the most part, television networks were established based on the capital contribution from existing radio networks at that… … Wikipedia
Direct-broadcast satellite — For the Japanese communication satellites, see Broadcasting Satellite (Japanese). Direct broadcast satellite (DBS) is a term used to refer to satellite television broadcasts intended for home reception. A designation broader than DBS would be… … Wikipedia
Communications satellite — A communications satellite (sometimes abbreviated to COMSAT) is an artificial satellite stationed in space for the purpose of telecommunications. Modern communications satellites use a variety of orbits including geostationary orbits, Molniya… … Wikipedia
Quasi-Zenith Satellite System — Quasi Zenith satellite orbit QZSS animation The Quasi Zenith Satell … Wikipedia
International broadcasting — is broadcasting that is deliberately aimed at a foreign, rather than a domestic, audience. It usually is broadcast by means of longwave, mediumwave, or shortwave radio, but in recent years has also used direct satellite broadcasting and the… … Wikipedia
Public broadcasting — includes radio, television and other electronic media outlets whose primary mission is public service. Public broadcasters receive funding from diverse sources including license fees, individual contributions, public financing and commercial… … Wikipedia
Adult Broadcasting Awards — Les Adult Broadcasting Awards sont une récompense attribuée aux programmes pornographiques diffusés par les antennes de télévision par satellite SKY PerfectTV!. Ses prix sont le pendant de ceux attribués par AV Open / AV Grand Prix pour les… … Wikipédia en Français
British Satellite Broadcasting — Infobox Company company name = British Satellite Broadcasting plc company fate = (BSB plc) Collasped and merged with Sky Television plc to become BSkyB. company type = Defunct foundation = 1986 closed = November 1990 location = flagicon|UK London … Wikipedia
Korean Broadcasting System — Infobox Network network name = Korean Broadcasting System (KBS) network country = flagicon|South Korea South Korea network type = Broadcast radio and television available = National International owner = Government of South Korea key people = Lee … Wikipedia
