The unit ID (or system ID) is an internal number which is required for database updates and downloads. Each aviation database update is downloaded specific to the system ID of each GPS, therefore if the system ID is incorrect on our website, your aviation databases will not update correctly.
Use the steps below determine the Unit ID/System ID of your device.
- Aera 5xx series: Main Menu – Tools – Database – Unit ID (near the bottom of the list))
- Aera 660: Main Menu – Tools – Database Information – Unit ID (near the bottom of the list))
- Aera 7xx series: Main Menu – Tools – Database – Unit ID (near the bottom of the list))
- GPSMAP 196/296/396/496: <page> <menu> <menu> - SETUP tab (left) – SYSTEM tab (top) - <menu> - SYSTEM INFORMATION - <enter> – Unit ID)
- GPSMAP 96: <page> <menu> <menu> - SETUP - <enter> - SYSTEM - <enter> - <menu> - SOFTWARE VERSION - <enter> - Unit ID)
- GPSMAP 696: <menu> <menu> - Database Information - <enter> - Unit ID (near the bottom of the list))