We are pleased to announce the publication of ED-102B “MOPS for 1090 MHz Extended Squitter ADS-B and TIS-B.”
Minimum Operational Performance Standard (MOPS) for the 1090 MHz Extended Squitter ADS-B and TIS-B Datalink for ADS-B Version 3. This document supersedes ED-102A and contains the following main changes:

• Addition of Phase Overlay Modulation;

• Support for Flight Deck Interval Management Applications;

• Improved Geometric Altitude Reporting;

• Specification of a Position Message Format Algorithm;

• Deletion of T-Bit Handling;

• Transmission of Air and Pilot Weather Reports;

• Transmission of Reply Rate Monitor Message;

• Support for UAS/RPAS Operations;

• Support for Sub-orbital High-Velocity Operations It is technically identical to RTCA DO-260C.

For the implementation of the Phase Overlay functionality, ED-102B refers to patented material from ACSS (Aviation Communication & Surveillance Systems, LLC). ACSS has granted a Commitment to License which is contained in the MOPS in Appendix K. In addition, supplementary material is available as well from the EUROCAE website.

Available on the EUROCAE website.