Garmin G900X Pilot's Manual - page 88
Garmin G900X Pilot’s Guide
190-00726-00 Rev. A
2-28
FLIGHT INSTRUMENTS
MARKER BEACON ANNUNCIATIONS
Marker Beacon Annunciations are displayed on the PFD to the left of the Selected Altitude. Outer marker
reception is indicated in blue, middle in yellow, and inner in white. Refer to the Audio Panel and CNS Section
for more information on Marker Beacon Annunciations.
Figure 2-39 Marker Beacon Annunciations
Inner Marker
Middle Marker
Outer Marker
Altimeter
ALTITUDE ALERTING
The Altitude Alerting function provides visual and aural alerts when the aircraft is approaching the Selected
Altitude. Whenever the Selected Altitude is changed, the Altitude Alerter is reset. The Altitude Alerter is
independent of the installed AFCS. The following occur when approaching the Selected Altitude:
• Upon passing through 1000 feet of the Selected Altitude, the Selected Altitude (shown above the Altimeter)
changes to black text on a light blue background, flashes for 5 seconds, and an aural tone is generated.
• When the aircraft passes within 200 ft of the Selected Altitude, the Selected Altitude changes to light blue text
on a black background and flashes for 5 seconds.
• After reaching the Selected Altitude, if the aircraft flies outside the deviation band (±200 feet of the Selected
Altitude), the Selected Altitude changes to yellow text on a black background, flashes for 5 seconds, and an
aural tone is generated.
Figure 2-40 Altitude Alerting Visual Annunciations
Within 1000 feet
Within 200 feet
Deviation of ±200 feet