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Database Effective Cycles
Most databases expire at regular intervals. Exceptions include Basemap and Terrain,
which neither expire nor update on a regular schedule.
Databases
with no
effective date
Databases
with specified
effective dates
Overwriting SD card
database files
When database files are loaded
to the SD card, any previously
loaded database files of the
same type residing on the card
are overwritten. This includes
loading a database of a different
coverage area or data cycle than
that currently residing on the
SD card.
2-6
The start-up page lists all currently
installed databases. Review this list for
current database types, cycle numbers,
and expiration dates.
Yellow text denotes when a database is:
DATABASE EFFECTIVE STATUS
•
Effective upon release
•
Includes Basemap and Terrain
•
Effective during a specific period
•
Unit determines database status using the current date
and time from GPS
•
Automatic activation occurs on the effective date
Pilot's Guide
•
Not available
•
Installed before its effective date
•
Missing date information
•
Past its expiration date
190-02327-03 Rev. C