Gtx 33 Mode S Transponder; Transponder Controls; Transponder Mode Selection - Garmin G2000 Pilot's Manual

Audio And CnS

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 identifier capability
• Flight ID (Flight Identification) reporting – The Mode S Transponder reports aircraft identification 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 identification 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 mode selection, code entry, and IDENT activation are controlled and displayed on the
Touchscreen Controller.

trAnSponder Mode Selection

Mode selection can be automatic (Ground and Altitude Reporting modes) or manual (Standby, On, and
Altitude Reporting modes). The Mode Selection Buttons can be accessed by selecting the Transponder Mode
Button.
Selecting a transponder mode:
1) Touch the Transponder Mode Button to display the Transponder Screen.
2) Touch a Mode Button to activate the transponder mode.
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Figure 4-36 Transponder Display and Controls
Garmin G2000 Pilot's Guide for the Cessna T240
XPDR IDENT Button
Transponder Mode Button
190-01263-01 Rev. A