Garmin HTAWS User Guide - Page 57

Part Four: Section 2 HTAWS Operation HTAWS Symbols The symbols and colors in the following figures and table are used to represent obstacles and potential impact points on the HTAWS Page. Each color is associated with a height above terrain. The zoom range of obstacles (on the TAWS and NAV pages) is controlled by the NAV map's "Setup Map" menu option in the "Terrain" group under the "Obstacles" option. Obstacles can be shown up to the maximum zoom range on the TAWS page. However, obstacles are ALWAYS shown on the TAWS page at 10 NM and below. NOTE: If an obstacle or terrain cell and the projected flight path of the aircraft intersect, the display automatically zooms in to the closest potential point of impact on the HTAWS Page. Aircraft Altitude +250 ft Aircraft Altitude Aircraft Altitude -250 ft Aircraft Altitude -500 ft Red Terrain is more than 250 ft above the aircraft altitude Orange Terrain is between 250 ft and 0 ft above the aircraft altitude Yellow Terrain is between 0 ft and 250 ft below the aircraft altitude Green Terrain is between 250 ft and 500 ft below the aircraft altitude HTAWS Terrain Altitude Colors and Symbology Black Terrain more than 500 ft below the aircraft altitude Obstacle Symbol Unlighted Obstacle Lighted Obstacle Obstacle < 1000 ft > 1000 ft < 1000 ft > 1000 ft Color AGL AGL AGL AGL Obstacle Location Red Obstacle is at or above current aircraft altitude Yellow Obstacle is between 250 ft and 0 ft below current aircraft altitude White Obstacle is 250 ft, or more, below current aircraft altitude HTAWS Obstacle Colors and Symbology 190-00356-30 Rev H 51