Garmin GDL 88 Series Pilots Guide - Page 9

Introduction

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1 INTRODUCTION The GDL 84/88 is a remotely mounted ADS-B transceiver with optional internal GPS/WAAS receiver which provides ADS-B out functions to meet FAR 91.227 and ADS-B In functions to provide traffic and datalink weather data to the pilot. GDL 84/88 installed with a single bottom mounted antenna meet TSO C154c Class A1S. GDL 88 installed with a top and bottom mounted antenna meet TSO C154c Class A1H. For installation in helicopters the GDL 84/88 offers additional functionality as documented in this guide. 1.1 GDL 84/88 System Functions 1.1.1 GDL 84 Functions The GDL 84 performs the following functions: • UAT transmission (978 MHz) The GDL 84 transmits ADS-B Out data on the 978 MHz (UAT) frequency to be received by other aircraft, vehicles, and ATC for situational awareness and traffic management. • Traffic alerting The GDL 84 provides aural and visual alerts of impending traffic conflicts, to include directional aurals ("Traffic, Traffic, Two O'clock, Two Miles, Low"). • Mode-S Extended Squitter reception on 1090 MHz The GDL 84 receives ADS-B data transmitted by aircraft on the 1090 MHz link to provided a comprehensive situational awareness traffic display for use by the flight crew. • UAT reception (ADS-B, ADS-R, TIS-B, and FIS-B) on 978 MHz. The GDL 84 receives ADS-B data transmitted on the UAT link from other aircraft, vehicles, and ground stations to present a traffic situational awareness display for use by the flight crew. In addition, the GDL 84 receives FIS-B data on the UAT link to provide the flight crew with graphical and textual weather products. • Correlation of traffic reports from multiple sources includes ADS-B, ADS-R, and TIS-B. 190-01122-03 Rev. E Garmin GDL 84/88 ADS-B Transceiver Pilot's Guide 1-1

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1-1
190-01122-03
Rev. E
Garmin GDL 84/88 ADS-B Transceiver Pilot’s Guide
1
INTRODUCTION
The GDL 84/88 is a remotely mounted ADS-B transceiver with optional internal
GPS/WAAS receiver which provides ADS-B out functions to meet FAR 91.227
and ADS-B In functions to provide traffic and datalink weather data to the pilot.
GDL 84/88 installed with a single bottom mounted antenna meet TSO C154c
Class A1S. GDL 88 installed with a top and bottom mounted antenna meet TSO
C154c Class A1H. For installation in helicopters the GDL 84/88 offers additional
functionality as documented in this guide.
1.1
GDL 84/88 System Functions
1.1.1
GDL 84 Functions
The GDL 84 performs the following functions:
•
UAT transmission (978 MHz)
The GDL 84 transmits ADS-B Out data on the 978 MHz (UAT) frequency
to be received by other aircraft, vehicles, and ATC for situational
awareness and traffic management.
•
Traffic alerting
The GDL 84 provides aural and visual alerts of impending traffic conflicts,
to include directional aurals (“Traffic, Traffic, Two O’clock, Two Miles,
Low”).
•
Mode-S Extended Squitter reception on 1090 MHz
The GDL 84 receives ADS-B data transmitted by aircraft on the 1090 MHz
link to provided a comprehensive situational awareness traffic display for
use by the flight crew.
•
UAT reception (ADS-B, ADS-R, TIS-B, and FIS-B) on 978 MHz.
The GDL 84 receives ADS-B data transmitted on the UAT link from
other aircraft, vehicles, and ground stations to present a traffic situational
awareness display for use by the flight crew. In addition, the GDL 84
receives FIS-B data on the UAT link to provide the flight crew with
graphical and textual weather products.
•
Correlation of traffic reports from multiple sources includes ADS-B,
ADS-R, and TIS-B.