Raim Prediction; Raim Prediction; Raim Prediction Page - Garmin GPS 175 Pilot's Manual

RAIM Prediction

Determine GPS coverage availability for the current location or a
specified waypoint at any time and date. RAIM performs checks to
ensure the navigator has adequate satellite geometry during flight.
FEATURE REQUIREMENTS
• Active flight plan and off-route direct-to waypoint (arrival date and time)
FEATURE LIMITATIONS
FAA's TSO requirements for non-precision approaches specify significantly greater
satellite coverage than is required during other phases of flight. As a result, RAIM
may not be available for all approaches.
This feature predicts the availability of fault detection integrity. It cannot predict the
availability of LPV or L/VNAV approaches.
Use a non-GPS based approach when RAIM is not available. For LPV approach
availability, visit the FAA's NOTAM service.
4.5

RAIM Prediction Page

Automatically monitors RAIM during approach operations and warns when
•
RAIM is not available
Near 100% availability in Oceanic, En route, and Terminal phases of flight
•
WP Identifier, Arrival Date, and Arrival Time setup keys
•
Compute RAIM key
•
190-02207-02 Rev. 1
The RAIM feature can help you plan for a
pending flight by confirming GPS operation
before an approach.
RAIM FEATURES
GPS 175/GNX 375 Pilot's Guide
Planning
4-11