Garmin G1000 Mooney M20TN - Manual (Page 69)

190-00647-00 Rev. A Garmin G1000 Pilot’s Guide for the Mooney M20M/M20R/M20TN 2-23
FLIGHT INSTRUMENTS
BAROMETRIC MINIMUM DESCENT ALTITUDE
The desired barometric minimum descent altitude (MDA, or Decision Height, DH) can be set in the Timer/
References Window. When active, the MDA is displayed in the box labeled ‘BARO MIN’ to the lower left of the
Altimeter and a bug appears at the corresponding altitude on the tape (Figure 2-33).
Setting the barometric minimum descent altitude and bug:
1) Select the TMR/REF Softkey.
2) Turn the large FMS Knob to highlight the BARO MIN field.
3) 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.
Figure 2-32 Barometric Minimum Descent Altitude
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. If the aircraft climbs proceeds to climb after having
reached the MDA, once it reaches 50 feet above the MDA, alerting is disabled.
Within 100 ft Altitude Reached Within 2500 ft
Figure 2-33 Barometric Minimum Descent Altitude Alerting Visual Annunciations
Barometric
Minimum Box
Barometric
Minimum Bug