190-00663-00 Rev. A
Garmin G1000 Pilot’s Guide for the Hawker Beechcraft C90A/GT
2-33
FLIGHT INSTRUMENTS
LOW ALTITUDE ANNUNCIATION
NOTE:
The Low Altitude Annunciation is available only for aircraft with GIA 63W Integrated Avionics Units
when WAAS is available. This annunciation is not shown for systems with TAWS, unless TAWS is inhibited.
When the Final Approach Fix (FAF) is the active waypoint in a GPS WAAS approach using vertical guidance,
a Low Altitude Annunciation may appear if the current aircraft altitude is at least 164 feet below the prescribed
altitude at the FAF. A black-on-yellow ‘LOW ALT’ annunciation appears to the top right of the Altimeter,
flashing for several seconds then remaining displayed until the condition is resolved.
Figure 2-47 Low Altitude on GPS WAAS Approach
Altimeter
MINIMUM DESCENT ALTITUDE/DECISION HEIGHT ALERTING
For altitude awareness, a barometric Minimum Descent Altitude (MDA, or Decision Height, DH) can be set
in the Timer/References Window and is reset when the power is cycled. 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 range of the tape). The following visual annunciations occur when approaching
the MDA/DH:
• When the aircraft altitude descends to within 2500 feet of the MDA/DH setting, the ‘BARO MIN’ box appears
with the altitude in light blue text. The bug appears on the altitude tape in light blue once in range.
• When the aircraft passes through 100 feet of the MDA/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 2-48 Minimum Descent Altitude/Decision Height Alerting Visual Annunciations
Altitude Reached
Within 100 feet
Within 2500 feet
MDA/DH Setting
MDA/DH Bug
Summary of Contents for G1000:Beechcraft Baron 58/G58
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