Garmin G1000 NXi Pilot’s Guide for the Cessna Nav III190-02177-00 Rev. ASYSTEMOVERVIEW FLIGHTINSTRUMENTS EIS AUDIO PANEL& CNS FLIGHTMANAGEMENT HAZARDAVOIDANCE AFCS ADDITIONALFEATURES APPENDICES INDEX109AUDIO PANEL AND CNSThe On indication and transponder code in the Transponder Data Box will appear green while airborne andwhite while on the ground.Figure 4-16 On ModeOn Mode(No Altitude Reporting)On-Ground (White Indication) Airborne (Green Indication)ALTITUDE MODE (AUTOMATIC OR MANUAL)The white Altitude Reporting Mode is normally selected automatically when the aircraft is on the ground.White Altitude Mode may also be selected manually by pressing the ALT Softkey while on the ground. WhiteAltitude Mode generates Mode S replies to discrete interrogations as well as transmission of acquisition andextended squitters, including ADS-B out. Mode A, Mode C, and Mode S all-call replies are inhibited.If Altitude Mode is selected while on the ground, a white ALT indication and transponder code appear inthe mode field of the Transponder Data Box.On-Ground ALT Mode(Mode C AltitudeReporting Inhibited)Figure 4-17 Altitude ModeThe green Altitude Mode is automatically selected when the aircraft becomes airborne. Green AltitudeMode may also be selected manually by pressing the ALT Softkey while airborne. Green Altitude Modegenerates Mode A, Mode C, and Mode S replies as well as transmissions of acquisition and extended squittersincluding ADS-B out.If Altitude Mode is selected while airborne, a green ALT indication and transponder code appear in themode field of the Transponder Data Box, and all transponder replies requesting altitude information areprovided with pressure altitude information.Airborne ALT Mode(Mode C AltitudeReporting)Figure 4-18 Altitude Mode
