Filter
Top Products
190-01255-00 Rev. B
Garmin G1000H
™
Pilot’s Guide for the Bell 407GX
24
SYSTEM OVERVIEW
Because of the tighter protection limit on approaches, there may be times when RAIM is not available. The
G1000H automatically monitors RAIM and warns with an alert message when it is not available. If RAIM is not
predicted to be available for the final approach course, the approach does not become active, as indicated by the
messages “Approach is not active” and “RAIM not available from FAF to MAP”. If RAIM is not available when
crossing the FAF, the missed approach procedure must be flown.
Predicting RAIM availability
1) Select the GPS Status Page.
2) If necessary, press 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 G1000H.
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 G1000H
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 specied waypoint, time, and date
• ‘RAIM NOT AVAILABLE’—RAIM is predicted to be unavailable for the specied waypoint, time, and date
•SBASSelection(SBAS Softkey is pressed)(WAAS, EGNOS, or MSAS capable systems only)
In certain situations, such as when the aircraft is outside or on the fringe of the WAAS, EGNOS, or MSAS
coverage area, it may be desirable to disable the reception of the applicable SBAS signal (although it is not
recommended). When disabled, the SBAS field in the GPS Status box indicates DISABLED. There may be a
small delay for the GPS Status box to be updated upon WAAS, EGNOS, and MSAS enabling/disabling.