Garmin G1000 Diamond DA42NG User Manual

Garmin G1000 Pilot’s Guide for the Diamond DA42NG
190-00-00962-02 Rev. A
420
HAZARD AVOIDANCE
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICESINDEX
6.11 UAT (ADS-B) TRAFFIC
TheoptionalGarminGDL90isaUniversalAccessTransceiver(UAT).Itprovidesdatalinktrafcinformation
tothedisplaysusingAutomaticDependentSurveillance-Broadcast(ADS-B)symbols.Theunitalsointegrates
aGPSSBAS(SatelliteBasedAugmentationSystem)receiver.
Figure 6-171 ADS-B System
When the GDL 90 is operating, it automatically broadcasts a report approximately once per second
containingtheaircraft’sGPSposition,velocity,altitude,identication,andotherinformationonthe978MHz
UATfrequency.ItalsocanreceivereportsfromothernearbyUAT-equippedaircraft,inadditiontotrafcand
weatherserviceswhenwithinline-of-sightreceptionofADS-BGround-BasedTransceivers(GBTs).
ADS-B SYSTEM
ADS-Bisasurveillancetechnologybeingwidelydeployed.Itisdesignedtoenhancepilotandairtrafc
controller situational awareness of traffic, especially in areas where radar is ineffective due to terrain or where
itisimpracticalortoocostly.InitialapplicationsofADS-Bareforadvisoryuseonly,toenhanceapilot’svisual
acquisitionofothernearbyequippedaircrafteitherwhenairborneorontheairportsurface.
UAT systems, such as the GDL 90, represent one component of the ADS-B system.  UAT technology is
intendedprimarilyforaircraftoperatingbelow18,000feet.NogroundinfrastructureisnecessaryforaUAT-
equippedaircrafttodetectanothernearbyaircrafttransmittingontheUATfrequency.
AsecondcomponentoftheADS-Bsystemare1090MHzExtendedSquitter(1090ES)transponders.The
1090ESsystemisintendedprimarilyforaircraftoperatingatorabove18,000feet.1090EStransponders
broadcastaircraftpositionreportscomparabletoUATreports,butonthe1090MHz(ModeS)frequency.An
aircraftbroadcastinga1090ESreportmaydetectothernearby1090EStrafcwithoutgroundinfrastructure,
providedtheaircrafthasADS-BIncapabilityneededtodisplay1090EStrafc.
Itisimportanttonote,however,thatUAT-onlyaircraftand1090ES-onlyaircraftcannotdetecteachother
directlywithoutthepresenceofaGBT.TheGBTreceivesbothUATand1090ESreports,andthenbroadcasts
thecombinedtrafcdataforbothUATand1090ESaircraftwithinline-of-sightreceptionoftheUAT.This
GBTserviceisknownasADS-Rebroadcast(ADS-R).TheGBTsalsoprovidethistrafcdatatoairtrafccontrol
(ATC)facilities.

Garmin G1000 Diamond DA42NG Specifications

General

Display Type	LCD
Resolution	1024 x 768 pixels
Manufacturer	Garmin
Aircraft	Diamond DA42NG
Primary Flight Display (PFD)	Yes
Multi-Function Display (MFD)	Yes
Audio Panel	Yes, integrated
Operating System	Proprietary
Weather Radar	Optional
Power Supply	28 VDC
Screen Size	10.4 inches
Number of Displays	2
AHRS	Yes
Air Data Computer (ADC)	Yes
GPS	Yes
Transponder	Yes
Input Method	knobs
Navigation	VOR, ILS, GPS
Traffic Avoidance	TAS/TCAS
Terrain Awareness	Yes, TAWS