1. Federal Aviation Administration GPS Augmentation Systems Status Leo Eldredge, GNSS Group Federal Aviation Administration (FAA) September 2009

2. CGSIC 1 Federal Aviation Administration September 2009 FAA GPS Augmentation Programs

3. CGSIC 2 Federal Aviation Administration September 2009 WAAS Architecture 38 Reference Stations 3 Master Stations 4 Ground Earth Stations 2 Geostationary Satellite Links 2 Operational Control Centers

4. CGSIC 3 Federal Aviation Administration September 2009 Intelsat GXV 133W Telesat F1R 107W Inmarsat 4F3 98W GEO Satellite Coverage Plot

5. Localizer Performance Vertical (LPV)

6. Global SBAS Coverage

7. CGSIC 6 Federal Aviation Administration September 2009 Airports with WAAS Supported Instrument Approaches with Vertical Guidance As of Aug 27 th, 2009 - 1,822 LPVs serving 970 Airports - 1049 LPVs to non ILS Runways - LPVs to 678 non-ILS Airports - 773 LPVs to ILS runways

8. WAAS Enterprise Schedule 04050607080910111213141516 17181920212223242526272829 30 FY DevelopmentOperational Technical Refresh Operational JRC Launch 10/05 Operational Launch 9/05 Technical Refresh Operational JRC FOC Launch 09/08 Operational Launch 09/14 Operational Launch 09/16 Operational Launch 09/18 Operational FLP Segment (Phase II) LPV-200 Segment (Phase III) Dual Frequency (Phase IV) GEO #3 – Intelsat GEO #4 – TeleSat Gap Filler GEO GEO #5 – TBD GEO #6 – TBD GEO #7 - TBD Initial Test Production FOC SLEP Phase III Phase IV Cutover Operational SLEP Standards Development User Transition Period L5 Design L5 Implementation GPS L5 WAAS WAAS Avionics Phases GEO GPS Modernization Approach Development WAAS Procedure Development ~5,218

9. CGSIC 8 Federal Aviation Administration September 2009 Local Area Augmentation System (LAAS) Precision Approach For CAT- I, II, III Multiple Runway Coverage At An Airport 3D RNP Procedures (RTA), CDAs Navigation for Closely Spaced Parallels Super Density Operations

10. CGSIC 9 Federal Aviation Administration September 2009 GBAS Pathway Forward Cat-I System Design Approval at Memphis – Complete Cat-III Validation by - 2010 Cat-III Final Investment Decision by - 2012

11. CGSIC 10 Federal Aviation Administration September 2009 Agana, Guam Frankfurt, Germany Rio De Janeiro, Brazil Malaga, Spain LAAS/GBAS International Efforts Sydney, Australia Bremen, Germany

12. CGSIC 11 Federal Aviation Administration September 2009 11 Future Considerations GLONASS GPS Galileo (EU) COMPASS

13. CGSIC 12 Federal Aviation Administration September 2009 12 Two Civil Frequencies The ionosphere creates the largest source of uncertainty affecting today’s use of GPS for aviation When GPS L5 becomes widely available it will be possible for the user receivers to directly remove the ionosphere delay errors However, the two frequency combination amplifies the effects of other error sources –More satellites tend to reduce the magnitude of the errors

14. CGSIC 13 Federal Aviation Administration September 2009 WAAS Dual Frequency User Potential (No “RDM Constraint”) 38 US WRS 13 SA WRS IFOR Threshold 38 US WRS IFOR Threshold

15. Current International Signal Plans 14 Future CDMA signal SBAS (US Europe India Japan) QZSS (Japan) IRNSS (India) COMPASS (China) Galileo (Europe) GLONASS (Russia) GPS (US) L1 L5 L2 Compass & IRNSS In S-band

16. CGSIC 15 Federal Aviation Administration September 2009 ARAIM Results for 30 SVs & URA =.5 m ARAIM currently predicated upon a user update rate of ~ 1hour

17. CGSIC 16 Federal Aviation Administration September 2009 Summary WAAS currently providing service to aviation in the U.S. National Airspace System LAAS system design approval for Category-I completing in September LAAS activity to continue to Category-II/III Dual Frequency GNSS Offers Significant Potential for Aviation