DO-242A

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 characteristics.

As of 8 Jul 2024, an electronic copy is available for 225 USD at: https://my.rtca.org/productdetails?id=a1B36000001Ick1EAC.

Outline of contents

 * 1) Purpose and Scope
 * 2) Introduction
 * 3) System Overview
 * 4) Operational Applications
 * 5) Verification Procedures
 * 6) Operational Requirements
 * 7) General Requirements
 * 8) System Performance - Standard Operational Conditions
 * 9) ADS-B System Definition and Functional Requirements
 * 10) System Scope and Definition of Terms
 * 11) ADS-B System Description
 * 12) System Requirements
 * 13) ADS-B Messages and Reports
 * 14) ADS-B Subsystem Requirements
 * 15) ADS-B Functional Level Requirements
 * 16) 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 ($$\mathrm{NAC}_v$$)