Garmin G1000 Cockpit Reference Guide for Cessna Nav IIISECTION 3 – NAV/COM &TRANSPONDER563.12 TRANSPONDEROn the G1000 system, the GTX 33 transponder inter-face resides on the Primary Flight Display (PFD), on thelower portion of the screen (see figures below).Transponder SoftkeysWhen the XPDR softkey is pressed, the following soft-keys associated with the transponder appear in the soft-key bar (see Figure 3-33): STBY, ON, ALT, VFR, CODE,IDENT, BACK.When the CODE softkey is pressed, the followingsoftkeys appear in the softkey bar (see Figure 3-34):0, 1, 2, 3, 4, 5, 6, 7, IDENT, BKSP, BACK.NOTE: Digits “8” and “9” are not available forcode entry.Figure 3-34 Standby ModeFigure 3-33 Mode Selection SoftkeysFigure 3-32 Top-level SoftkeysTransponder Status BarPressing BACKdisplays the Top-level softkeysPressing BACKdisplays the ModeSelection softkeysPressing XPDRdisplays the ModeSelection softkeysPressing CODEdisplays the CodeSelection softkeysNOTE: Pressing the BACK softkey when the CodeSelection softkeys are displayed reverts to theMode Selection softkeys shown in Figure 3-33.Similarly, pressing the BACK softkey when theMode Selection softkeys are displayed reverts tothe Top-level softkeys shown in Figure 3-32.NOTE: After 45 seconds of transponder softkeyinactivity, the system automatically reverts to theTop-level softkeys shown in Figure 3-32.Transponder Status BarThe Transponder Status bar is located to the left of theSystem Time box and contains, from left to right, a four-digit code field, a mode field and a reply status field, asillustrated in the figures below. In Standby mode, boththe code field and the mode field appear in white; in allother modes, these fields appear in green.