Garmin G3X Pilot's Manual page 50

System Overview
MODE
BACK
CODE Softkey selected
IDENT
CODE
VFR
BACK or DONE
MODE Softkey selected
STBY
ON
ALT
SET ID
BACK
30
Displays second-level MODE softkeys
Returns to top-level softkeys
Sends a distinct identity indication to Air Traffic Control
(ATC).
Returns to top-level softkeys
The pre-programmed VFR code is automatically
displayed in the code field of the Transponder Data
Box. Pressing the VFR softkey again restores the
previous identification code.
Returns to top-level softkeys
Selects the standby mode. When in standby mode, the
remote transponder will not reply to any interrogations.
Press and hold to put the transponder in Ground
(GND) Mode. Ground Mode is normally selected
automatically when the aircraft is on the ground.
Generates Mode A and Mode S replies, but Mode C
altitude reporting is inhibited.
Selects ALT Mode. All transponder replies requesting
altitude information are provided with pressure
altitude information.
Allows the pilot to set the Flight ID. (The Flight ID must
be configured to 'Set By Pilot' for the SET ID softkey
to be displayed).
Returns to previous level softkeys
Garmin G3X Pilot's Guide 190-01115-00 Rev. J