NEC space activities for telecommunication satellite system - APRSAF

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1.Demand for satellites communicationsSatellite Kiku-8 Thuraya-3 TerreStar-1 Skyterra-1 MEXSATLaunched Dec. 2006 Jan. 2008 July 2009 Nov. 2010 End of 2012ServiceSatelliteBusReflectoron S/CJapan(experiments)ETS-Ⅷ Busby JAXA18m byNTSpaceEurasia Africa702HP GMSby BoeingNorthAmericaLS1300 bySS/LNorthAmerica702HP GMSby BoeingMexico702HP GMSby Boeing12m by Harris 18m by Harris 22m by Harris 22m by HarrisCom.Band S: 2.5GHz L:1.5/1.6GHz S: 2GHz L:1.5/1.6GHz L:1.5/1.6GHzUserTerminalSeveral mobile satellite communication programs are performed using large reflectors.Page 8© NEC Corporation 2010
1.Demand for satellites communicationsref Euro consult report 2010Ka sat multi-spot beams (example)The number of broadband IN subscriber will be increased. High gain multi-spot beamsatellite are preferable to meet high capacity requirement. 4-color multi-fold frequencyreuse spot-beams covers wide service area, provides the increased number of subscribers.Page 9© NEC Corporation 2010
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Page 25: Thank you for kind attentions!Page

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