Garmin GDL 88 User Manual

7-2

GDL 88 ADS-B Transceiver Pilot’s Guide

190-01122-03  Rev. A

FIS-B 

Flight Information Services-Broadcast. FIS-B is a graphic 

weather display capable of displaying graphical weather 

information on UAT equipped installations. FIS-B is available 

free to any operator with the ability to receive and display 

the data that is broadcast on the Universal Access Transceiver 

(UAT) or the 978 MHz link. 

Ground Clutter 

A form of radar signal interference that occurs when fixed 

objects close to the transmitter—such as buildings, trees, 

or terrain (hills, ocean swells and waves)—obstruct a radar 

beam and produce echoes. 

GPS 

Global Positioning System. A space-based Navigation system 

providing accurate position, velocity and time information. 

This instrumentation will be certified as primary navigation. 

HAT 

Height Above Terrain

HSDB 

Garmin’s proprietary High Speed Data Bus. 

ICAO 

International Civil Aviation Organization. 

PABI 

Pressure Altitude Broadcast Inhibit. 

SBAS 

Satellite-Based Augmentation System. 

STC 

Supplementary Type Certificate

SURF 

Surface Situation Awareness. An ADS-B In application that 

provides the ADS-B and external traffic system targets on a 

display to be used by the flight crew for situational awareness. 

TA 

Traffic Advisory. 

TAS 

Traffic Advisory System. 

TCAD 

Traffic Collision Avoidance Device.