Garmin G3X Touch
™
Pilot’s Guide for Certified Aircraft
190-02472-00 Rev. D
220
Hazard Avoidance
System
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Hazard
Avoidance
Additional
FeaturesAFCSAnnun/AlertsAppendixIndex
• Look Ahead Time—Determines the maximum time when an alert annunciation
occurs. For example, if 120 seconds is selected, the G3X Touch provides an alert
up to 120 seconds before you reach the terrain or obstacle.
• Alert Sensitivity—The three Alert Sensitivity settings (Terrain, Obstacles, and
Descent Rate) determine what level of alerts are annunciated. The G3X Touch
defaults to ‘High’ sensitivity, which annunciates all red and yellow alerts at the
time set in Look Ahead Time. ‘Medium’ sensitivity annunciates all of the red
and the highest priority of yellow alerts. ‘Low’ only annunciates red alerts. ‘Off’
disables the alert.
Accessing the terrain settings:
1)
From the Terrain Page, press the MENU Key.
2)
Touch Caution Elevation and touch 500ft Below, 750ft Below, or
1000ft Below.
Or
:
Touch Look Ahead Time and touch 60 Seconds, 90 Seconds, or 120
Seconds.
Or
:
Touch Alert Sensitivity... > Terrain, Obstacles, or Descent Rate >
Off, Low, Medium, or High.
Or
:
Touch Alerts to toggle between Enabled and Inhibited.
Or
:
Touch Profile View to toggle on and off.
TERRAIN ALERTS
Terrain, Obstacle, and Descent Rate Alerts are issued when flight conditions meet
parameters that are set within the software algorithms. Terrain alerts typically employ
a CAUTION or a WARNING alert severity level, or both. When an alert is issued, visual
annunciations are displayed and aural alerts are simultaneously issued. When the
aircraft descends through 500 feet above the destination airport or user waypoint
(saved as an airport symbol) an audible “Five Hundred” altitude reminder occurs.
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