Garmin G1000 Piper PA-46 Matrix - Manual (Page 95)

190-01108-00 Rev. B Garmin G1000 Pilot’s Guide for the Piper PA-46 Mirage/Matrix 81
FLIGHT INSTRUMENTS
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ADDITIONAL
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INDEX
MINIMUM DESCENT ALTITUDE/DECISION HEIGHT ALERTING
For altitude awareness, a Minimum Descent Altitude (MDA) or Decision Height (DH) based on barometric
altitude can be set. When active, the altitude setting is displayed to the lower left of the Altimeter and with a
bug at the corresponding altitude along the Altimeter (once the altitude is within the visible range of the tape).
The following visual annunciations alert the pilot when approaching the MDA/DH:
• When the aircraft altitude descends to within 2500 feet of the MDA/DH setting, a box labeled ‘BARO
MIN’ appears with the altitude in light blue text. The bug appears in light blue on the altitude tape at the
corresponding altitude once in range.
• When the aircraft passes through 100 feet of the MDA or DH, the bug and text turn white.
• Once the aircraft reaches the MDA/DH, the bug and text turn yellow and the aural alert, “Minimums
Minimums”, is generated.
Figure 2-39 Barometric MDA/DH Alerting Visual Annunciations
Altitude Reached Within 100 feet
MDA/DH
Setting
MDA/DH
Bug
Within 2500 feet
Alerting is inhibited while the aircraft is on the ground and until the aircraft reaches 150 feet above the setting
for the alert. If the aircraft proceeds to climb after having reached the MDA/DH, once it reaches 50 feet above
the MDA/DH, alerting is disabled.
The MDA/DH may be set from either PFD and is synchronized on both PFDs. The function is reset when the
power is cycled.
Setting the barometric minimum descent altitude and bug:
1) Select the TMR/REF Softkey.
2) Turn the large FMS Knob to highlight the ‘Minimums’ field.
3) Turn the small FMS Knob to select BARO. OFF is selected by default. Press the ENT Key or turn the large FMS
Knob to highlight the next field.
4) Use the small FMS Knob to enter the desired altitude (from zero to 16,000 feet).
5) To remove the window, press the CLR Key or select the TMR/REF Softkey.
Figure 2-40 MDA/DH Setting
(Timer/References Window)