Garmin G1000 Pilot's Manual page 32

SYSTEM OVERVIEW
Predicting RAIM availability:
1) Select the GPS Status Page.
2) If necessary, select the RAIM Softkey.
3) Press the FMS Knob. The 'WAYPOINT' field is highlighted.
4) Turn the small FMS Knob to display the Waypoint Information Window.
5) Enter the desired waypoint:
a) Use the FMS Knob to enter the desired waypoint by identifier, facility, or city name and press the ENT Key. Refer
to Section 1.7 for instructions on entering alphanumeric data into the G1000.
OR:
a) Use the large FMS Knob to scroll to the Most Recent Waypoints List.
b) Use the small FMS Knob to highlight the desired waypoint in the list and press the ENT Key. The G1000
automatically fills in the identifier, facility, and city fields with the information for the selected waypoint.
c) Press the ENT Key to accept the waypoint entry.
OR:
a) To use the present position, press the MENU Key.
b) With 'Set WPT to Present Position' highlighted, press the ENT Key.
c) Press the ENT Key to accept the waypoint entry.
6) Use the FMS Knob to enter an arrival time and press the ENT Key.
7) Use the FMS Knob to enter an arrival date and press the ENT Key.
8) With the cursor highlighting 'COMPUTE RAIM?', press the ENT Key. Once RAIM availability is computed, one
of the following is displayed:
• 'COMPUTE RAIM?'—RAIM has not been computed for the current waypoint, time, and date combination
• 'COMPUTING AVAILABILITY'—RAIM calculation in progress
• 'RAIM AVAILABLE'—RAIM is predicted to be available for the specified waypoint, time, and date
• 'RAIM NOT AVAILABLE'—RAIM is predicted to be unavailable for the specified waypoint, time, and date
• SBAS Selection (SBAS Softkey is selected on WAAS enabled systems)
In certain situations, such as when the aircraft is outside or on the fringe of the WAAS coverage area, it may
be desireable to disable WAAS (although it is not recommended). When disabled, the SBAS field in the GPS
Status box will indicate DISABLED.
Disabling WAAS:
1) Select the GPS Status Page.
2) If necessary, select the SBAS Softkey.
3) Press the FMS Knob. 'WAAS' is highlighted.
4) Press the ENT Key to uncheck the box.
5) Press the FMS Knob to remove the cursor.
1-20 Garmin G1000 Pilot's Guide for Cessna Nav III 190-00498-01 Rev. A