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GDU 37X Installation Manual – Software, Configuration, Databases, and XM Activation Page 4-13
190-01054-01 Revision B
4. The database(s) can be updated by either highlighting UPDATE ALL and pressing the ENT key;
or by using the FMS Joystick to highlight a single database and pressing the ENT Key.
5. When the update process is complete, the screen displays the database status.
6. Once the database(s) have been updated, the SD card can be removed from the unit
7. The unit must be restarted by pressing the Restart softkey.
4.5.2 Available Databases
Jeppesen® Aviation Data (NavData™)
The Jeppesen database contains the general aviation data (NavData) used by pilots (Airports, VORs,
NDBs, SUAs, etc.) and is updated on a 28-day cycle.
Terrain
The terrain database contains the elevation data which represents the topography of the earth. This
database is updated on an irregular basis.
Basemap
The basemap contains data for the topography and land features, such as rivers, lakes, and towns. It is
updated only periodically, with no set schedule. There is no expiration date.