Garmin GDL 82 User Manual

System Specification and Functionality
190-01810-00 GDL 82 TSO Installation Manual
Rev. 5 Page 2-1
2 System Specification and Functionality
2.1 System Functionality ...................................................................................................................................... 2-1
2.1.1 Anonymous Mode................................................................................................................................... 2-1
2.2 Unit Specifications ......................................................................................................................................... 2-2
2.3 System Interface ............................................................................................................................................ 2-5
2.1 System Functionality
The GDL 82 is a remote-mounted unit that contains a 978 MHz transmitter, a 1090 MHz receiver, and a 1030 MHz
transmitter. This unit transmits ownship Automatic Dependent Surveillance-Broadcast (ADS-B) data through the UAT
data link. It interrogates connected transponders for Mode 3/A squawk code, IDENT status, and pressure altitude. The
GDL 82 with GPS/SBAS includes an internal GPS/SBAS receiver. This receiver allows the unit to function as its own
position source for the ADS-B Out message, when an approved position source interface is not installed. Operation of
the GDL 82 with internal GPS/SBAS receiver depends on the performance of the GPS/SBAS antenna.
The GDL 82 Series consists of the following variations:
 GDL 82
 GDL 82 with GPS/SBAS
2.1.1 Anonymous Mode
In anonymous mode, the GDL 82 transmits a temporary address instead of the aircraft’s assigned ICAO address code,
and a temporary Flight ID.

Garmin GDL 82 Specifications

General

Brand	Garmin
Model	GDL 82
Category	Transceiver
Language	English