User Guide

Garmin G1000 Pilot’s Guide for the Cessna Citation Mustang
190-00494-00 Rev. B
2-32
FLIGHT INSTRUMENTS
BAROMETRIC MINIMUM DESCENT ALTITUDE ALERTING
For altitude awareness, a barometric minimum descent altitude (MDA, or Decision Height, DH) can be set
in the Timer/References Window. The MDA may be set from either PFD and is synchronized on both PFDs.
When active, the MDA is displayed to the lower left of the Altimeter (in a box labeled ‘BARO MIN’; see Figure
2-47) and on the altitude tape with a bug (once the altitude is within the range of the tape). This altitude can
be adjusted in the ‘BARO MIN’ field in the Timer/References Window (Figure 2-46) from zero to 16,000 feet.
The MDA is reset any time the power is cycled.
Figure 2-46 Barometric Minimum Descent Altitude Settings
Setting the barometric minimum descent altitude and bug:
1) Press the TMR/REF Softkey.
2) Turn the large FMS Knob to highlight the ‘Baro Min’ field (Figure 2-46).
3) Use the small FMS Knob to enter the desired altitude and press the ENT Key.
4) In the highlighted ON/OFF field, turn the small FMS Knob clockwise to ON or counterclockwise to OFF.
5) To remove the window, press the CLR Key or the TMR/REF Softkey.
The following visual annunciations alert the pilot when approaching the MDA:
• When the aircraft altitude descends to within 2500 feet of the MDA setting, the ‘BARO MIN’ box appears with
the altitude in light blue text. The bug appears on the tape in light blue once in range.
• When the aircraft passes through 100 feet of the MDA, the bug and text turn white.
• Once the aircraft descends past the MDA, the bug and text turn yellow and the aural alert, “Minimums
Minimums”, is generated.
Alerting is inhibited while the aircraft is on the ground and until the aircraft reaches 150 feet above the MDA.
If the aircraft proceeds to climb after having reached the MDA, once it reaches 50 feet above the MDA, alerting
is disabled.
Figure 2-47 Barometric Minimum Descent Altitude Alerting Visual Annunciations
Within 100 feet Altitude ReachedWithin 2500 feet
Barometric
Minimum Box
Barometric
Minimum Bug