Garmin Flight Deck 100 Manual De Usuario

190-00728-04  Rev. A

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The Mode S Transponders provide Mode A, Mode C, and Mode S interrogation and reply capabilities.  Diversity

incorporates antennas mounted on the top and bottom of the aircraft for dependable operation while maneuvering.  
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 to recognize
the presence of Mode S-equipped aircraft for selective interrogation.

The Hazard Avoidance Section provides more details on traffic avoidance systems.