Special Squawk Codes - Garmin GTN 625 Cockpit Reference Manual

Special Squawk Codes

The selected squawk code will always be in use. As you change a squawk
code, the original code will be sent until you are finished selecting the new code.
The table below lists special squawk codes:
Squawk Code
1200
7500
7600
7700
NOTE: While 1200 is the default VFR squawk code, the installer can configure
any code to the VFR key. This is to support international operations where
1200 may not be used.
6
Special Squawk Codes
GTN 625/635/650 Cockpit Reference Guide (CRG)
Description
Default VFR code in the USA
Hijacking
Loss of Communications
Emergency
190-01004-04 Rev. E