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 e-shop.