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9 - AUX PAGES
167
190-00356-00 Rev E
Utility Page
RAIM Prediction
To predict RAIM availability:
1. Select “RAIM Prediction” from the utility
page.
2. The flashing cursor highlights the waypoint
field. Use the small and large right knobs
to enter the identifier of the waypoint at which
you wish to determine RAIM availability. Press
ENT when finished. (To determine RAIM avail-
ability for your present position, press CLR,
followed by ENT.)
3. The flashing cursor moves to the arrival date
field. Use the small and large right knobs to
enter the date for which you wish to determine
RAIM availability. Press ENT when finished.
4. The flashing cursor moves to the arrival time
field. Use the small and large right knobs to
enter the time for which you wish to determine
RAIM availability. Press ENT when finished.
5. The flashing cursor moves to “Compute
RAIM?”. Press ENT to begin RAIM prediction.
Once calculations are complete, the 400W-
series unit will display one of the following in
the RAIM status field:
•RAIMNotAvailable—Satellitecoverageis
predicted to NOT be sufficient for reliable
operation during non-precision approaches
•RAIMAvailable—Satellitecoverageispredicted
to be sufficient for reliable operation during
all flight phases, including non-precision
approaches
NOTE: RAIM computations predict satellite cover-
age within ±15 minutes of the specified arrival
date and time. Refer to the CDI/Alarms section
of Aux pages Setup 1 for specific information
regarding RAIM protection limits.