DirecTV and Satellite Radio

Direct Broadcast SatelliteDirecTVSatellite RadioBackgroundCommon TechnologyCompetitorsXMSIRIUSWorldSpace

Direct Broadcast SatelliteRefers to eitherTelevision ServiceSatellites which deliver serviceMini-dish systemsParabolic SurfaceFocuses incoming signals into Feed HornReflects outgoing signals into narrow beamMain part Consists of Low Noise Blockdown Converter (LNB)

Typical SystemOperates in upper Ku Band (12 GHz to 14 GHz)LegislationC BandProprietary equipment neededEncryptionSmart CardFixed Satellite Service (FSS)Operates in C-Band (3.4 GHz to 7 GHz)

TechnologySatellitesThree geostationary satellitesTwo more to be launched18 x 20 in elliptical dish5 LNBsHigh DefinitionAccess CardsD2/P12 Current IssueLaw suitsISO-7186 Smart Card DeviceMPEG-II Compression270 Mbps down to 10 Mbps

SatelliteOrbital slotLaunch dateSatellite typeDirecTV-1110.0W17 December 1993Hughes Electronics HS-601DirecTV-2100.8W3 August 1994Hughes Electronics HS-601DirecTV-1R100.8W10 October 1999Hughes Electronics HS-601HPDirecTV-4S101.2W27 November 2001Hughes Electronics HS-601HPDirecTV-572.5W7 May 2002Space Systems/Loral LS-1300DirecTV-6109.8W9 March 1997Space Systems/Loral LS-1300DirecTV-7S119.0W4 May 2004Space Systems/Loral LS-1300DirecTV-8101.0W22 May 2005Space Systems/Loral LS-1300DirecTV-9S101.1W13 October 2006Space Systems/Loral LS-1300SPACEWAY-1102.8W26 April 2005Boeing BSS-702SPACEWAY-299.2W16 November 2005Boeing BSS-702DirecTV-10, 11, 12TBDEst. 2007Boeing BSS-702

BackgroundDigital Audio Radio Service (DARS)Established in 1992Operates in S-Band (2.3 GHz)4 Second DelayMain CompetitorsNorth AmericaXM and SiriusEurope, Middle East, AfricaWorldSpaceTerrestrial Repeaters (Cell Towers)

TechnologySatellitesTwo geostationary satellitesXM Rhythm at 115 westXM Blues at 85 westReplaced previous XM Rock and XM RollThird as a spareUses 12.5 MHz of S band: 2332.5 to 2345.0MHzGM, Honda

TechnologySatellitesThree Medium Earth OrbitExtremely Elliptical PathAt least one satellite for 14 hours per day.PositionsRadiosat 1, Radiosat 2, Radiosat 3Fourth as a spareBMW, Daimler-Benz, VAG

TechnologyOperates in L-Band (1.467 GHz to 1.492 GHz)SatellitesAfriStar, AsiaStar, AmeriStar

Direct Broadcast SatelliteDirecTVSatellite RadioXM, SIRIUS, WorldSpaceBackgroundTechnologySatellites

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