1-14
GTN 725/750 Pilot’s Guide
190-01007-03 Rev. C
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Charts
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
1.5.3 Dual GTN Installations
Dual GTN units when connected in the aircraft may be set up to communicate
and share information by “Crossfilling” or synchronizing information between
the two units.
The following Crossfill information is always synchronized between both
GTN units:
• UserWaypoints
• FlightPlanCatalog
• Alerts(trafcpopupacknowledgement,missedapproachwaypointpopup
acknowledgement, altitude leg popup acknowledgement)
• Externalsensors(transponderstatusandcommands,synchroheading)
• Systemsetup:
– User-defined NAV frequencies to store favorites
– Date/Time convention
– Nearest airport criteria
– Units (Nav angle, Distance/Speed, etc.)
– User-defined COM frequencies to store favorites
– Ownship icon
– CDI Scale setting
– ILS CDI Capture setting
This data is crossfilled only if crossfill is turned on by the pilot:
• Activenavigation(ightplan)
NOTE: In dual GTN installations with crossfill on, the OBS course will only
be updated real time on the GTN that is receiving the new OBS course. The
course will be transferred to the other GTN when OBS is exited.