Garmin G1000 PDAs & Smartphones User Manual


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190-00498-07 Rev. A
Garmin G1000 Pilot’s Guide for Cessna Nav III
119
AUDIO PANEL AND CNS
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICES INDEX
4.4 GTX 33 MODE S TRANSPONDER
TheGTX33ModeSTransponderprovidesModeA,ModeC,andMode S interrogation and reply capabilities.
Selective addressing or Mode Select (Mode S) capability includes the following features:
•Level-2replydatalinkcapability(usedtoexchangeinformationbetweenaircraftandATCfacilities)
•Surveillanceidentiercapability
•FlightID(FlightIdentication)reporting–TheModeSTransponderreportsaircraftidenticationaseitherthe
aircraftregistrationorauniqueFlightID.
•Altitudereporting
•Airbornestatusdetermination
•Transpondercapabilityreporting
•ModeSEnhancedSurveillance(EHS)requirements
•Acquisitionsquitter–Acquisitionsquitter,orshortsquitter,isthetransponder24-bitidenticationaddress.
The transmission is sent periodically, regardless of the presence of interrogations. The purpose of acquisition
squitter is to enable Mode S ground stations and aircraft equipped with a Traffic Avoidance System (TAS) to
recognize the presence of Mode S-equipped aircraft for selective interrogation.
The Hazard Avoidance Section provides more details on traffic avoidance systems.
TRANSPONDER CONTROLS
TransponderfunctionisdisplayedonthreelevelsofsoftkeysonthePFD:Top-level,ModeSelection,and
Code Selection. When the top-level
XPDR
Softkey is pressed, the Mode Selection softkeys appear:
STBY
,
ON
,
ALT
,
VFR
,
CODE
,
IDENT
,
BACK
.
When the
CODE
Softkey is pressed, the number softkeys appear:
0
,
1,
2
,
3
,
4
,
5
,
6
,
7
,
IDENT
,
BKSP,
BACK
. The digits
8
and
9
are not used for code entry. Pressing the numbered softkeys in sequence enters the
transponder code. If an error is made, the code selection cursor can be moved back to the left one digit with
each press of the
BKSP
Softkey.
Pressing the
BACK
Softkey during code selection reverts to the Mode Selection Softkeys. Pressing the
BACK
Softkey during mode selection reverts to the top-level softkeys.
The code can also be entered with the FMSKnobonthePFD.Codeentrymustbecompletedwitheitherthe
softkeys or the FMS Knob, but not a combination of both.
Pressing the
IDENT
Softkey while in Mode or Code Selection initiates the ident function and reverts to the
top-level softkeys.
After45secondsoftranspondersoftkeyinactivity,thesystemrevertsbacktothetop-levelsoftkeys.
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