190-00709-04 Rev. A
Garmin G1000 Pilot’s Guide for the Socata TBM 850
138
AUDIO PANEL AND CNS
MANUAL ON MODE
ON Mode can be selected at any time by pressing the
ON
Softkey. 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 field of the Transponder Data Box.
ON Mode
(No Altitude
Reporting)
Figure 4-38 ON Mode
ALTITUDE MODE (AUTOMATIC OR MANUAL)
Altitude Mode is automatically selected when the aircraft becomes airborne. Altitude Mode may also be
selected manually by pressing the
ALT
Softkey.
If Altitude Mode is selected, a green ALT indication and transponder code appear in the mode field of the
Transponder Data Box, and all transponder replies requesting altitude information are provided with pressure
altitude information.
Figure 4-39 Altitude Mode
ALT Mode
(Mode C Altitude
Reporting)
REPLY STATUS
When the transponder sends replies to interrogations, a white R indication appears momentarily in the
reply status field of the Transponder Data Box.
Reply to
Interrogation
Figure 4-40 Reply Indication
Summary of Contents for SOCATA TBM850
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