What’s the Difference Between RAIM and WAAS?

The Coriolis Effect
January 24, 2025
The Coriolis Effect
January 24, 2025

What’s the Difference Between RAIM and WAAS?

RAIM (Receiver Autonomous Integrity Monitoring) is a technology that allows a GPS receiver to independently assess the integrity of its position data, while WAAS (Wide Area Augmentation System) is a satellite-based system that enhances the accuracy and integrity of GPS signals by providing additional correction data, essentially making RAIM checks unnecessary when WAAS coverage is available; in simple terms, RAIM is a function within a GPS receiver that checks for potential errors, while WAAS is a separate system that actively improves GPS accuracy by sending correction signals.

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