Garmin SR20 GPS Receiver User Manual


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Cirrus Perspective
®
by Garmin – Cockpit Reference Guide for the SR20/SR22
190-00821-03 Rev. A
Appendix
103
Flight
Instruments EIS
Nav/Com/
XPDR/Audio AFCS GPS Nav
Flight
Planning Procedures
Hazard
Avoidance
Additional
Features
Abnormal
Operation
Annun/
Alerts Appendix Index
DUAL NAVIGATION DATABASES
The dual navigation database feature allows each display to store an upcoming
navigation database on the bottom SD card so that the system can automatically load it
to replace the active database when the new database becomes effective (the next cycle
becomes available seven days prior to its effective date).
Uploadingthestandbydatabasetotheactivelocationtakesapproximately45-55
seconds.
Loading a Navigation Database
1)
With the system OFF, insert the SD card containing the navigation database
update into the top card slot of the PFD or MFD.
2)
Verify that an SD card is inserted in the bottom slot.
3)
Turn the system ON.
4)
At the prompt, if it is desired to update the standby navigation database on
the bottom SD card, press the YES Softkey and proceed to step 6. If it is
desired to update the active navigation database, press the NO Softkey and
proceed to step 5.
5)
At the next prompt, press the YES Softkey to update the active navigation
database.
6)
After the update, the display starts in normal mode.
7)
Repeat steps 1-6 for the remaining display.
8)
Verify the effectivity of the active navigation database in the PFD and the
MFD on the AUX-System Status Page.
AUTOMATIC DATABASE SYNCHRONIZATION
The automatic database synchronization feature automatically transfers the database
from a single SD database card to the SD cards on the PFD or the MFD to ensure that all
databases are synchronized throughout the system. After power-up, the Perspective
®
system compares all copies of each applicable database. If similar databases do not
match, the most recent valid database is automatically copied to the other card in the
system that does not already contain that database.
NOTE:
The9-arcsecondterraindatabasemaytakeaslongas100minutesto
synchronize using this method. Therefore the user may want to transfer the data
using a PC, or connect the Perspective
®
system to a ground power source while
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