2. AIRCRAFT IDENTIFICATION AND POSITION REPORTING

2.1  
Description of Transponder 2-3
2.1.1  
Mode A 2-4
2.1.2  
Mode C 2-4
2.1.3  
Mode S 2-4
2.1.3.1  
Mode S Data Link 2-5
2.1.3.2  
Elementary Surveillance (ELS) 2-5
2.1.3.3  
Enhanced Surveillance (EHS) 2-5
2.1.3.7  
Automatic Dependent Surveillance – Broadcast (ADS-B) 2-6
2.1.3.8  
Extended Squitter 2-7
2.1.3.9  
1090 Extended Squitter 2-7
2.1.4  
Transponder Controls 2-8

2.2  
Aircraft Identification and Position Reporting with ADS-B 2-8
2.2.1 ADS-B Surveillance in Non-Radar Areas (ADS-B NRA) 2-9
2.2.2 ADS-B surveillance in Radar Areas (ADS-B RAD) 2-10
2.2.3 ADS-B Surveillance on Airport Surfaces (ADS-B APT) 2-10
2.2.4 Generic Emergency Indicator  
2-11
2.2.5  
Discrete Emergency Codes 2-11
2.2.6  
DO-260 and DO-260A 2-11
2.2.7  
Geographical Filtering of SQWK Code 2-12
2.2.8  
Version Number 2-12
2.2.9  
Receiver Autonomous Integrity Monitoring (RAIM) / 2-12 Fault Detection and Exclusion (FDE)
2.2.10  
GPS Horizontal Figure of Merit (HFOM)  2-13
2.2.11  
GPS Horizontal Protection Limit (HPL)  2-13
2.2.12  
Selective Availability (SA)  2-13
2.2.13  
Navigational Uncertainty Category (NUC)  2-14
2.2.14  
Navigation Integrity Category (NIC)  2-14
2.2.15  
Navigational Accuracy Category (NAC) 2-14
2.2.16  
Surveillance Integrity Level (SIL) 2-14
2.2.17  
ADS-B Controls and Indications 2-15

2.3  
Aircraft Identification and Position Reporting with Wide 2-15 Area Multilateration
2.4  
Aircraft identification and Position Reporting with FANS 2-17

2.5 Operational Recommendations for Transponder 2-17
2.5.1 Conventional Transponder Operations 2-17
2.5.1.1 For the Airline 2-17
2.5.1.2 For the Flight Crew 2-18
2.5.2 ADS-B Operations 2-18
2.5.2.1 For the Airline 2-18
2.5.2.2 For the Flight Crew 2-18

2.6 Regulations for Transponder 2-19
2.6.1 Carriage of Transponder  2-19
2.6.2 Operational Approval of ADS-B OUT 2-20

2.7 Manufacturers for Transponder 2-21
2.7.1 ACSS XS 950 2-22
2.7.3 Rockwell Collins TPR 901 2-22
2.7.4 Honeywell TRA 67A 2-22

2.8 Future Systems 2-22

Since the beginning of the aviation history, air traffic controllers have used the surveillance radar for years. Today, other surveillance methods are available with the emergence of new technologies: Automatic Dependent Surveillance
　
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