If your GPS equipment is WAAS-certified, what is true about verifying the integrity of GPS signals?

When GPS equipment is WAAS-certified, it means that it is capable of using the Wide Area Augmentation System. WAAS enhances the accuracy and integrity of GPS signals by using a network of ground stations that monitor satellite signals and send correction data back to geostationary satellites, which in turn broadcast this information to WAAS-equipped receivers.

Under WAAS, the system is designed to continuously check the integrity of the GPS signals. As a result, pilots using WAAS can trust that the integrity checks are effectively handled by the WAAS system itself, eliminating the need for additional RAIM (Receiver Autonomous Integrity Monitoring) prediction checks. This significantly simplifies the process for pilots flying in WAAS-enabled areas, as they can have high confidence in the integrity of their GPS signals without performing the extra checks that would otherwise be necessary in non-WAAS situations.

Therefore, when flying with WAAS-certified GPS equipment, the assertion that RAIM prediction checks are not needed with WAAS coverage is accurate, as the integrity of the GPS signals is assured through the system's own mechanisms.