Garmin G1000 NXI Cockpit Reference Manual page 75

Advisory altitude calculated by the system estimating the
altitude of the aircraft as it passes over the navigation
point. No white line above or below to indicate a potential
Altitude retrieved from the navigation database. White line
above or below indicates the type of constraint,
as shown in the preceding figure.
These altitudes are provided as a reference, and are not
designated to be used in determining vertical guidance.
Entering/designating or modifying an altitude constraint:
1) Press the FPL Key on the MFD to display the 'FPL - Active Flight Plan' Page.
2) Press the FMS Knob, and turn to highlight the desired waypoint altitude constraint.
3) Enter an altitude constraint value using the FMS Knobs. To enter altitudes as a flight
level, turn the small FMS Knob counter-clockwise past zero or clockwise past 9 on the
first character, and the system automatically changes to show units of Flight Level. Turn
the large FMS Knob clockwise to highlight the first zero and enter the three digit flight
level.
4) Press the ENT Key to accept the altitude constraint; if the selected waypoint is an airport,
an additional choice is displayed. Turn the small FMS Knob to choose 'MSL' or 'AGL', and
press the ENT Key to accept the altitude.
Removing/undesignating an altitude constraint:
1) Press the FPL Key on the MFD to display the 'FPL - Active Flight Plan' Page.
2) Press the FMS Knob, and turn to highlight the desired waypoint altitude constraint.
3) Press the CLR Key. A 'Remove VNV altitude?' confirmation window is displayed.
4) Select 'OK' and press the ENT Key.
Reverting a manually entered altitude constraint back to the navigation database
value:
1) Press the FPL Key on the MFD to display the 'FPL - Active Flight Plan' Page.
2) Press the FMS Knob, and turn to highlight the desired waypoint altitude constraint.
190-02622-00 Rev. A
White Text
5OOO
FT
constraint.
5OOO
FT
altitude Constraint Color Coding
Garmin G1000 NXi Cockpit Reference Guide for the da62
Flight Management
Cyan Text
Altitude is designated for use in
determining vertical guidance. A pencil
icon indicates manual designation or
manual modified data entry.
The system cannot use this altitude in
determining vertical guidance because of
an invalid constraint condition.
51