Pilot's Guide

190-009663-02 Rev. B Garmin G1000 Pilot’s Guide for the Hawker Beechcraft C90A/GT/GTi 125
AUDIO PANEL AND CNS
GROUND MODE
Ground Mode is normally selected automatically when the aircraft is on the ground. The transponder
powers up in the last mode it was in when shut down. Ground Mode can be overridden by selecting any one
of the ModeSelectionSoftkeys.AgreenGNDindicationandtranspondercodeappearinthemodeeldof
theTransponderDataBox.InGround Mode, the transponder does not allow Mode A and Mode C replies,
but it does permit acquisition squitter and replies to discretely addressed Mode S interrogations.
When Standby Mode has been selected on the ground, press the GND Softkey to return the transponder
to Ground Mode.
GND
Mode
Figure 4-31 Ground Mode
STANDBY MODE (MANUAL)
NOTE: In Standby Mode, the IDENT function is inhibited.
Press the STBY Softkey at any time to select StandbyMode.InStandby,thetransponderdoesnotreply
to interrogations, but new codes can be entered. When Standby is selected, a white STBY indication and
transponder code appear in the modeeldoftheTransponderDataBox.Inallothermodes,theseelds
appear in green.
STBY Mode (White
Code Number and
Mode)
Figure 4-32 Standby Mode
MANUAL ON MODE
Press the ON Softkey at any time to select ON Mode. ON Mode generates Mode A and Mode S replies, but
ModeCaltitudereportingisinhibited.InONMode,agreenONindicationandtranspondercodeappearin
themodeeldoftheTransponderDataBox.
ON Mode
(No Altitude
Reporting)
Figure 4-33 ON Mode