Gtn Databases; Basemap Database; Navigation Database; Flitecharts Database - Garmin GTN 635 Installation Manual

1.6

GTN Databases

The GTN utilizes various databases. With the exception of the Navigation, Basemap, SafeTaxi, and
Obstacle databases which reside internal to the GTN, all databases are stored in a single SD memory card
that is inserted into the vertical slot on the left side of the GTN. The following describes each database
and how the databases are updated.
Garmin requests that the flight crew report any observed discrepancies related to database information.
These discrepancies could come in the form of an incorrect procedure; incorrectly identified terrain,
obstacles and fixes; or any other displayed item used for navigation or communication in the air or on the
ground. Go to FlyGarmin.com
Databases on the Supplemental Data Card are locked to specific GTN installations. The
first time the Supplemental Data Card is inserted into a GTN it becomes ―locked‖ to that
particular GTN and will not work in other installations.

1.6.1 Basemap Database

The basemap provides ground-based references such as roads and bodies of water. The database is stored
in the GTN internal memory. The basemap does not have a scheduled update cycle and as such does not
have an expiration date. The basemap database is updated very infrequently. Should this database need to
be updated in the future, Garmin will provide details on how to load the updated data into the GTN.

1.6.2 Navigation Database

The Jeppesen Navigation Database provides the GTN with the required information for displaying flight
plan information.
The GTN utilizes a database stored on an SD memory data card for easy updating and replacement. The
navigation database may be updated by inserting an updated navigation database update card into the
vertical SD card slot on the left side of the GTN. The actual database is downloaded into the unit, so the
card can be removed after the update. Each card will only update one system. Alternately, the navigation
database may be updated by copying the database to the Garmin-supplied Supplemental Data card. It will
be downloaded into the GTN on first use, and the file can be left on the Supplemental Data card until the
next update cycle.
The navigation database on the GTN database card is generated from current Jeppesen Sanderson data
and converted to a format that is used by the GTN. The data conversion process is performed using
software that is developed and maintained under Garmin configuration management according to
RTCA/DO-200A, Standards for Processing Aeronautical Data. GTN users update their database card by
purchasing database subscription updates from Garmin. The database card is programmed using an SD
card reader. Contact Garmin at 800-800-1020 or go to
instructions.
®
1.6.3 FliteCharts
FliteCharts resemble the paper version of AeroNav Services (formerly named National Aeronautical
Charting Office) terminal procedures charts. The charts are displayed with high-resolution and in color
for applicable charts. FliteCharts database subscription is available from Garmin. When viewing these
charts on the GTN, the aircraft position is not depicted on the chart. The FliteCharts database is updated
by removing the database card from the GTN, updating the database on the card and reinserting the card.
Each card can only be used with one system. GTN users update their database card by purchasing
database subscription updates from Garmin. The database card is programmed using an SD card reader.
Contact Garmin at 800-800-1020 or go to
Page 1-18
Rev. C
and select ―Aviation Data Error Report.‖
CAUTION
Database (GTN 725/750 Only)
FlyGarmin.com
FlyGarmin.com for more information and
for more information and instructions.
GTN 625/635/650 TSO Installation Manual
190-01004-02