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Hybrid C/K u /K a-band satellite; C band payload referred to as Galaxy-23 2008-11-26 EchoStar-9: FS-1300: United States Echostar/DISH Network: Direct Broadcasting North America: 7 August 2003: Hybrid C/K u /K a-band satellite; K u /K a-band payload referred to as EchoStar-9 2008-11-26 121.1°W Galaxy 31 (Galaxy 23R, PACSTAR-L4) LS-1300: United ...
The C band is a designation by the Institute of Electrical and Electronics Engineers (IEEE) for a portion of the electromagnetic spectrum in the microwave range of frequencies ranging from 4.0 to 8.0 gigahertz (GHz). [ 1 ] However, the U.S. Federal Communications Commission C band proceeding and auction, designated 3.7–4.2 GHz as C band. [ 2 ]
28 C-band and 3 K u-band transponders to cover Latin America, Iberian peninsula, Canary Islands, Western Europe and much of Eastern Europe. 27 February 1998: Atlas 2AS: Launched as Intelsat 806 at 40.5° W. Replaced by SES-6 in June 2013 and moved to 47° W European beams retired, remaining C-band Hemi beam and K u-band Spot beam cover South ...
The International Space Station (ISS) has long been used as a central satellite platform for other sensors, including Earth observation sensors. For example: LIS, SAGE III, TSIS-I, ECOSTRESS, GEDI, OCO-3, Diwata-1, and HICO. Radar altimeter used to monitor ocean surface height. Also known as DubaiSat-3.
Typical transponders each have a bandwidth between 27 and 50 MHz. Each geostationary C-band satellite needs to be spaced 2° longitude from the next satellite to avoid interference; for K u the spacing can be 1°. This means that there is an upper limit of 360/2 = 180 geostationary C-band satellites or 360/1 = 360 geostationary K u-band satellites.
In November 1990, Primestar launched as the first North American direct-broadcast satellite service. Hughes's DirecTV, the first national high-powered upper K u -band satellite TV system, went online in 1994. The DirecTV system became the new delivery vehicle for USSB. In 1996, EchoStar 's Dish Network went online in the United States and has ...
t. e. A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. Communications satellites are used for television, telephone, radio, internet, and military ...
24 J band. Eutelsat 113 West A, formerly Satmex-6, is a geostationary communications satellite which is operated by Eutelsat. Originally built for Mexico's Satmex, it was launched in 2006. The satellite was acquired by Eutelsat in its 2014 merger with Satmex, and renamed Eutelsat 113 West A in May. [2] It is used to provide communications ...