Manual De Utilizare Garmin Radio Meteo Gdl 88 [13/48 Pagini]

Garmin radio meteo GDL 88

2-3

190-01122-03 Rev. A

GDL 88 ADS-B Transceiver Pilot’s Guide

2.1 ADS-B - Broadcast (ADS-B)

ADS-B is the automatic broadcast of position reports by aircraft, surface

vehicles, and transmitters on ﬁxed objects. These broadcasts contain much more

datathan just a simple position report, they include: identity (Flight ID, Call

Sign,TailNumber,ICAOregistrationnumber,etc),groundtrack,groundspeed,

pressure altitude, indications of multitude capabilities, and emergency status. This

list of data is non-inclusive of other data ﬁelds and bits used for various other

functions.

Figure 2-3 ADS-B Operation - FAA Illustration

Garmin display units have the capability to show the status of the ground station

servicesbeingreceived.ExamplesfortheGTNandGNSproductsareshownbelow.

See the display device Pilot Guide for the symbology used on that display.

Unit Symbol Description

GNS

Within coverage of a TIS-B ground station when connected

to a GDL 88.

GNS

Not within coverage of a TIS-B ground station when

connected to a GDL 88.

GNS

GDL 88 does not have a valid track or heading and cannot

place ADS targets on the display.

GTN

Within coverage of a TIS-B ground station when connected

to a GDL 88.

GTN

Not within coverage of a TIS-B ground station when

connected to a GDL 88

Table 2-1 Map TIS-B Availability Symbols