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Terrain (TER) Function
The Terrain Function shows a map of the terrain in the
area relative to your airplane’s position and altitude. The
altitude information comes from an external altitude
encoder. The displayed altimeter setting has to be
adjusted, or baro-corrected, just like the one in your
aircraft’s instrument panel.
The terrain screen has a 360-degree and a 90-degree
display. Both screens will show terrain relative to your
position. Colors used for terrain display are shown below.
Note
The Terrain function shows you the general
terrain elevations relative to your altitude
and are advisory in nature. Individual
obstructions may be shown if available in
the database. Terrain is displayed from
database information and may therefore
potentially contain some degree of error. Do
not use this information for surface or
primary navigation.
46
Detailed Operation
500 feet below your current altitude
Ye
llow
2000 feet below your current altitude
Black
Red
Gr
een
Current Altitude
Highest Terrain
More than 2000 feet below your current altitude