Garmin GDL 88 Weather Radio User Manual


  Open as PDF
of 48
 
6-2
GDL 88 ADS-B Transceiver Pilot’s Guide
190-01122-03 Rev. A
6.2 Interfaces
6.2.1 Audio Panel
Trafc alert audio output is interfaced to a required audio panel with a
compatible unswitched unmuted audio input.
6.2.2 Altitude Source
TheGDL88requirestheuseofanownshippressurealtitudefortransmission
ofrequiredADS-BOutdatavaluesandtocalculatetheverticalseparationand
vertical closure from target aircraft.
6.2.3 TAS and TCAS Traffic Systems
The GDL 88 will interface with the GTS 800, 820, and 850, Skywatch,
SkywatchHP,andRyanTCAD.
6.2.4 Heading Source (optional)
The GDL 88 can optionally use heading for the purpose of correlating ADS-B
trafcandtrafcreceivedfromtheexternaltrafcsystem.HSDBandARINC429
digital heading is provided to the GDL 88 from any compatible magnetic heading
source. Multiple heading sources may be connected to the GDL 88.
6.2.5 GPS Position Source
The GDL 88 uses the ownship GPS position for creation of the ADS-B Out
messagesaswellas thereceiptandtrackingofADS-BIn targets.TheGDL88
withouttheinternalGPSWAASrequiresatleast onecompatibleGPS position
source be installed, while the GDL 88 with the internal GPS WAAS engine may
optionally be interfaced with compatible sources.
6.2.6 Radar Altimeter (Optional)
The GDL 88 can optionally be interfaced with a radar altimeter to drive the
sensitivity level of the Conflict Situational Awareness (CSA) application.
6.2.7 Traffic Mute (Optional)
The GDL 88 can optionally interface with a pilot controlled switch to
acknowledge an active Conflict Situational Awareness (CSA) alert and mute the
associated aural alert. This momentary switch only mutes the current CSAs and
does not act as an inhibit for future CSA aural annunciations.
 previous next