Garmin G900X Pilot's Manual page 265

• To add an altitude constraint to the FAF or a waypoint past the FAF of an approach that provides vertical
guidance (i.e. ILS or GPS WAAS approach)
• To add an altitude constraint to any waypoint past the FAF of an approach that does not provide vertical
guidance (i.e. not an ILS or GPS WAAS approach).
To enter altitudes as a flight level, enter an "F" in the most significant digit by rotating the inner FMS Knob
counter-clockwise past zero or clockwise past 9, the system automatically changes to show units of Flight
Level.
Vertical constraints and Along Track offset waypoints are not retained in stored flight plans.
NOTE:
When an altitude constraint is subdued it means that the user has selected a vertical profile that
NOTE:
cannot be flown. The computed FPA for adjacent vertical constraints is too steep.
Entering an altitude constraint:
1) Select the Active Flight Plan Page.
2) Highlight the desired waypoint altitude field (Figure 5-89).
3) Enter an altitude constraint value.
4) Press the ENT Key to accept the VNV altitude constraint.
190-00726-00 Rev. A
Figure 5-89 Entering an Altitude Constraint
Garmin G900X Pilot's Guide
GPS NAVIGATION
VNV ALT Field
5-107