User Guide
190-00552-00 Rev. A
Garmin G1000 Pilot’s Guide for the Columbia 350/400
2-23
FLIGHT INSTRUMENTS
MARKER BEACON ANNUNCIATIONS
NOTE: Refer to the Audio Panel and CNS Section for more information on Marker Beacon Annunciations.
Marker Beacon Annunciations are displayed on the PFD to the left of the Selected Altitude. Outer marker
reception is indicated by a blue light, middle by amber, and inner by white.
Figure 2-31 Marker Beacon Annunciations
Outer Marker Middle Marker Inner Marker
Altimeter
ALTITUDE ALERTING
The Altitude Alerting function provides the pilot with a visual alert when approaching the Selected Altitude.
Whenever the Selected Altitude is changed, the Altitude Alerter is reset. The Altitude Alerter is independent of
the GFC 700 AFCS.
The following occurs when approach 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 and flashes for five seconds.
• When the aircraft passes within 200 ft of the Selected Altitude, the Selected Altitude changes to light blue text
on a black background, flashes for five seconds, and an aural tone is generated.
• After reaching the Selected Altitude, if the pilot flies outside the deviation band (±200 feet of the Selected
Altitude), the Selected Altitude changes to yellow text on a black background, flashes for five seconds, and an
aural tone is generated.
Figure 2-32 Altitude Alerting Visual Annunciations
Within 1000 ft Within 200 ft Deviation of ±200 ft










