DO-242A

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DO-242A
Minimum Aviation System Performance Standards for Automatic Dependent Surveillance Broadcast (ADS-B)
Latest Revision	June 25, 2002
Prepared by	RTCA SC-186

DO-242A is an aviation system standard published by RTCA, Incorporated. It contains minimum aviation system performance standards (MASPS) for Automatic Dependent Surveillance-Broadcast (ADS-B). These standards specify operational characteristics that should be useful to designers, manufacturers, installers, service providers and users of an ADS-B system intended for operational use on an international basis. DO-242A provides a view of the system-wide operational use of ADS-B, but does not describe a specific technical implementation or design architecture meeting these operational and technical chararcteristics.

[edit] Outline of Contents

1. Purpose and Scope
   1. Introduction
   2. System Overview
   3. Operational Applications
   4. Verification Procedures
2. Operational Requirements
   1. General Requirements
   2. System Performance - Standard Operational Conditions
3. ADS-B System Definition and Functional Requirements
   1. System Scope and Definition of Terms
   2. ADS-B System Description
   3. System Requirements
   4. ADS-B Messges and Reports
   5. ADS-B Subsystem Requirements
   6. ADS-B Functional Level Requirements
4. Procedures for Requirement Verification

• Appendix A: Acronyms
• Appendix B: Definition of Terms
• Appendix C: Bibliography and References
• Appendix D: Near-Term ADS-B Applications
• Appendix E: Other Applications
• Appendix F: Efficient Spectrum Utilization
• Appendix G: Design Tradeoff Considerations
• Appendix H: Receive Antenna Coverage Constraints
• Appendix I: Integrity Considerations for ADS-B Applications
• Appendix J: Accuracy and Update Period Analysis
• Appendix K: Latency and Report Time Error Data
• Appendix L: Track Acquisition and Maintenance Requirements
• Appendix M: Examples of On-Condition Report Formats
• Appendix N: Intent Guidance Material for Future ADS-B Intent Broadcast
• Appendix O: Determination of Intent Information Exchange Requirements for Air-Air Encounter Alerting and De-Confliction
• Appendix Q: Future Air-Referenced Velocity (ARV) Broadcast Conditions
• Appendix R: Determining the Navigation Accuracy Category for Velocity (NAG_v)

[edit] See also

• Automatic Dependent Surveillance-Broadcast
• DO-212, Minimum Operational Performance Standards for Airborne ADS Equipment
• DO-185A, Minimum Operational Performance Standards for Traffic Alert and Collision Avoidance System (TCAS) Airborne Equipment
• DO-184, Traffic Alert Collision Avoidance System (TCAS) I Functional Guidelines
• DO-236A, Minimum Aviation System Performance Standards: Required Navigation Performance for Area Navigation
• DO-243, Guiance for Initial Implementation of Cockpit Display of Traffic Information
• DO-229B, Minimum Operational Performance Standards for Global Positioning System/Wide Area Augmentation System Airborne Equipment
• DO-260, Minimum Operational Performance Standards for 1090 MHz Automatic Dependent Surveillance - Broadcast (ADS-B)
• DO-259, Application Descriptions for Initiao Cockpit Display of Traffic Information (CDTI) Applications
• DO-246A, GNSS-Based Precision Approach Local Area Augmention System (LAAS) Signal-in-Space Interface Control Document (ICD)
• DO-253, Minimum Operational Performance Standards for GPS Local Area Augmentation System Airborne Equipment
• DO-245, Minimum Aviation System Performance Standards for the Local Area Augmentation System (LAAS)