Glossary
- RAAS:Regional Area Augmentation System
- RAIM:Receiver Autonomous Integrity Monitoring
- RAM:Reliability Availability and Maintainability or Random Access Memory
- RAMS:Reliability Availability, Maintainability and Safety
- RF:Radio Frequency
- RFI:Radio Frequency Interference
- R-GEO:Ranging via GEO satellites
- RIMSRD:RIMS Requirements Document
- RNAV:Radio NAVigation
- RNP:Required Navigation Performance or Required Navigation Parameters
- RS:Remote Station or Reference Station
- RST:Reference System Time
- RTCA:Radio Technical Commission for Aeronautics or Radio Technical Committee of America
- RTK:Real Time Kinematics
- RTOS:Real Time Operating System
- RTSS:Real-Time Simulation Segment
- RX:Receiver
- RIMS:
Ranging and Integrity Monitoring Station
- RTCM:
Radio Technical Commission for Maritime Services
- RUE:
RESTREINT UE/EU RESTRICTED: the unauthorised disclosure of this information could be disadvantageous to the interests of the EU or one or more of the Member States.
- RLS:
Return Link Service
- REFBE:
Galileo/SAR Reference Beacons
- R&D:
Research and Development
- R&I:
Research and Innovation