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Garmin G1000 Cockpit Reference Guide for the Columbia 350/400
4-4
SECTION 4 – NAV/COM &
TRANSPONDER
4.6 TRANSPONDER
Mode Selection
The STBY, ON, and ALT Softkeys can be accessed by
selecting the XPDR Softkey.
Ground Mode (Automatic)
GND is displayed when the aircraft is on the ground.
Figure 4-8 Ground Mode
Reply Status
When the transponder sends replies to interrogations,
an “R” indication appears momentarily in the reply status
field.
Figure 4-9 Reply Indication
Code Selection
1) Select the
XPDR
Softkey to display the
transponder Mode Selection softkeys.
2) Select the
CODE
Softkey to display the
transponder Code Selection softkeys, which
includes the digit softkeys.
3) Press the appropriate digit softkeys to enter
the code in the four-digit code field of the
Transponder Status Box. Five seconds after the
fourth digit has been entered, the transponder
code becomes activated.
When entering a code, select the
BKSP
Softkey
as needed to back up and change code
digits.
Following is a list of important codes:
• 1200 – VFR code in the U.S. (please refer to the
ICAO standards for
VFR codes in other countries)
• 7000 – VFR code commonly used in Europe (please
refer to the ICAO standards)
• 7500 – Hijack code
• 7600 – Loss of communication code
• 7700 – Emergency code
• 7777 – Military interceptor operations code
(NEVER ENTER THIS CODE)
• 0000 – Code for military use (in the U.S.)