Pilot's Guide

Garmin G1000 Pilot’s Guide for Tiger AG-5B190-00617-00 Rev. A
4-1
TRANSPONDER DESCRIPTION
SECTION 4 TRANSPONDER
4.1 OVERVIEW
The GTX 33 transponder is integrated into the G1000
system, offering Mode A, Mode C and Mode S interroga-
tion and reply capabilities. This section provides a de-
scription of the transponder operation and information on
Mode S capability.
The transponder controls are located on the G1000
Primary Flight Display (PFD) on the lower portion of the
screen (see figures below).
TRANSPONDER SOFTKEYS
The transponder function spans three levels of soft-
keys; the Top-level, the Mode Selection and the Code Se
-
lection softkeys.
When the Top-level
XPDR softkey is pressed, the fol-
lowing softkeys appear in the softkey bar (Figure 4-2):
STBY, ON, ALT, VFR, CODE, IDENT, BACK.
When the CODE softkey is pressed, the num-
ber softkeys appear in the softkey bar (Figure 4-3):
0, 1, 2, 3, 4, 5, 6, 7, IDENT, BKSP, BACK. The digits
8 and 9 are not used for code entry. Pressing the BKSP
softkey backs up code selection to the previous digit.
Pressing the
BACK softkey during Code Selection re-
verts to the MODE Selection softkeys (Figure 4-2). Press-
ing the BACK softkey during Mode Selection reverts to
the Top-level softkeys (Figure 4-1).
NOTE: After 45 seconds of transponder softkey
inactivity, the system reverts back to the Top-level
softkeys (Figure 4-1).
TRANSPONDER STATUS BAR
The Transponder Status Bar is located to the left of the
System Time box and contains, a four-digit code field, a
mode field and a reply status indicator. In Standby mode,
both the code field and the mode field appear in white. In
all other modes, these fields appear in green.
Figure 4-3 Code Selection Softkeys
Figure 4-2 Mode Selection Softkeys
Figure 4-1 Top-level Softkeys
Transponder Status Bar
Pressing BACK
displays the Top-
level softkeys
Pressing
BACK
displays the Mode
Selection softkeys
Pressing XPDR
displays the Mode
Selection softkeys
Pressing
CODE
displays the Code
Selection softkeys
XPDR_00617-00_0A.indd 1 7/12/2005 8:00:54 AM