A VIATIONSetting Up the Terrain Page and AlertsUse the Terrain Setup Page to set levels for terrain alerts as well asobstacles in or near your flight path.Caution ElevationSelect the Caution Elevation. If the terrain or an obstacle is withinthe Caution Elevation you entered, the GPSMAP 496 provides analert.Look Ahead TimeThe Look Ahead Time for Terrain and Obstacle Alerts determinesthe time when an alert annunciation occurs. For example, if120 seconds is selected, the GPSMAP 496 provides an alert up to120 seconds before you reach the terrain or obstacle.Alert SensitivityThe three Alert Sensitivity settings (Terrain, Obstacle, andDescent Rate) determines what level of alerts are annunciated. TheGPSMAP 496 defaults to High sensitivity, which annunciates allred and yellow alerts at the time set in Look Ahead Time. Mediumsensitivity annunciates all of the red and the highest priority ofyellow alerts, and Low only annunciates red alerts.To set up the Terrain Page:1. On the Terrain Page, press MENU to access the TerrainPage options menu.2. Select Set up Terrain, and press ENTER.Terrain Setup Page3. Make the adjustments to the Terrain Setup Use the ROCKERto select options, and press ENTER. Select an option, andpress ENTER.4. Press PAGE or QUIT to accept the changes and exit the Setup Terrain Page.GPSMAP 496 Owner's Manual 39AVIATION MODE PAGES > TERRAIN PAGE
