Garmin aera 660 aera 660 Pilot s Guide - Page 113
Main Menu, Terrain, Caution Elevation, 500ft Below, Look Ahead Time, Seconds, Medium, Obstacles
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Overview Navigation Flight Planning Hazard Avoidance Additional Features Hazard Avoidance • Caution Elevation-The aera will provide an alert if the terrain or obstacle is within the default Caution Elevation or user-defined Caution Elevation • Look Ahead Time-Determines the maximum time when an alert annunciation occurs. For example, if 120 seconds is selected, the aera provides an alert up to 120 seconds before reaching the terrain or obstacle • Alert Sensitivity-The three Alert Sensitivity settings (Terrain, Obstacle, and Descent Rate) determine what level of alerts are annunciated. The aera 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 terrain/obstacle settings: 1) From the Main Menu, touch Terrain. 2) Touch Menu. 3) Touch Caution Elevation, and touch 500ft Below, 750ft Below, or 1000ft Below. 4) Touch Look Ahead Time, and touch 60 Seconds, 90 Seconds, or 120 Seconds. 5) Touch Terrain 'Alert Sensitivity', and touch Off, Low, Medium, or High. 6) Touch Obstacles 'Alert Sensitivity', and touch Off, Low, Medium, or High. 7) Touch Descent Rate 'Alert Sensitivity', and touch Off, Low, or High. 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 an audible "Five Hundred" altitude reminder occurs. The Terrain Alert Annunciation is shown to the lower left corner of the screen. If the Terrain Map is not displayed, a pop-up alert appears. The Range Rings on the popup alert are spaced every whole mile/kilometer/nautical mile. Touch the Terrain Alert Annunciation to acknowledge the pop-up and/or aural alert. Appendices Index 190-02017-20 Rev. A Garmin aera 660 Pilot's Guide 97