Sunrise / Sunset - Garmin GPS 400W,GNC 420W Pilot's Manual & Reference

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:
• RAIM Not Available— Satellite coverage is
predicted to NOT be sufficient for reliable
operation during non-precision approaches
• RAIM Available— Satellite coverage is predicted
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.

Sunrise / Sunset

To calculate sunrise and sunset times at any
waypoint or your present position:
1. Select "Sunrise / Sunset" 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 sunrise and sunset
times. Press ENT when finished. (To determine
sunrise/sunset times for your present position,
press CLR, followed by ENT.)
3. The flashing cursor moves to the date field. Use
the small and large right knobs to enter the
date for which you wish to determine sunrise
and sunset times.
Press ENT to calculate sunrise and sunset times
4.
for the selected location and date.
9 - AUX PAGES
Utility Page
163