DirecTV and Satellite Radio

 Direct Broadcast Satellite ◦ DirecTV  Satellite Radio ◦ Background ◦ Common Technology ◦ Competitors  XM  SIRIUS  WorldSpace

 Direct Broadcast Satellite ◦ Refers to either  Television Service  Satellites which deliver service ◦ Mini-dish systems  Parabolic Surface  Focuses incoming signals into Feed Horn  Reflects outgoing signals into narrow beam  Main part Consists of Low Noise Blockdown Converter (LNB)

 Typical System ◦ Operates in upper Ku Band (12 GHz to 14 GHz)  Legislation  C Band ◦ Proprietary equipment needed  Encryption  Smart Card  Fixed Satellite Service (FSS) ◦ Operates in C-Band (3.4 GHz to 7 GHz)

 Technology ◦ Satellites Satellites  Three geostationary satellites  Two more to be launched  18 x 20 in elliptical dish  5 LNB’s  High Definition ◦ Access Cards  D2/P12 – Current Issue  Law suits  ISO-7186 Smart Card Device ◦ MPEG-II Compression  270 Mbps down to 10 Mbps

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

 Background ◦ Digital Audio Radio Service (DARS)  Established in 1992  Operates in S-Band (2.3 GHz)  4 Second Delay ◦ Main Competitors  North America  XM and Sirius  Europe, Middle East, Africa  WorldSpace ◦ Terrestrial Repeaters (Cell Towers)

 Technology ◦ Satellites  Two geostationary satellites  XM Rhythm at 115° west  XM Blues at 85° west  Replaced previous XM Rock and XM Roll  Third as a spare  Uses 12.5 MHz of S band: to MHz  GM, Honda

 Technology ◦ Satellites  Three Medium Earth Orbit  Extremely Elliptical Path  At least one satellite for 14 hours per day.  Positions  Radiosat 1, Radiosat 2, Radiosat 3 Radiosat 1Radiosat 2Radiosat 3  Fourth as a spare ◦ BMW, Daimler-Benz, VAG

 Technology ◦ Operates in L-Band (1.467 GHz to GHz)  Satellites ◦ AfriStar, AsiaStar, AmeriStar

 Direct Broadcast Satellite ◦ DirecTV  Satellite Radio ◦ XM, SIRIUS, WorldSpace  Background  Technology  Satellites