System Description
SystemDescriptionandInstallationManualforRangeFinder ICD10000‐01
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11.0 AppendixA:Glossary
ACK: Acknowledgement.Each time the Range Finder receives a message, it responds with an
acknowledgement message indicating that the information was received and set correctly. The
acknowledgement message also contains Range Finder status information. This message is called the
AcknowledgeMessageorACKforshort.
ADS‐B: Automatic Dependent Surveillance
‐Broadcast (ADS‐B) is an emerging system for cooperative air
traffic control. The Range Finder broadcast GPS and other aircraft‐related data to the ATC system and
nearbyaircraft.
ADS‐BMOPS:AutomaticDependentSurveillance‐Broadcast(seeADS‐B)minimumoperationalperformance
standards(MOPS).TheMXRiscompliantwithRTCA/DO
‐260B.
ADS‐R:ADS‐B Rebroadcast.TheMessagesoftheADS‐BRebroadcastServicearenottransmittedbyaircraft,
butbyADS‐Bgroundstations.
ATC: The Air Traffic Control (ATC) system uses ground‐based hardware and air traffic controllers to direct
aircrafttraffic.
ATCRBS:AirTrafficControlRadar
BeaconSystem.
ES:ExtendedSquitter.
GPRMC:Recommendedminimumdata.NMEA0183sentencethatcontainsallbasicGPSrequirementsfor
aRangeFinder.SeeNMEA0183below.
GPS: Global Positioning System.A space‐based global positioning system that provides reliable location
and time information. Note that other systems that provide
equivalent data may be used (GLONASS,
Galileo,etc.).ItisnottheintentofthisdocumenttolimittheusertoonlytheGPS.
Heading:Thedirectionanaircraftispointing.
ICAO address: A 24‐bit address used to identify aircraft. ICAO stands for International Civil Aviation
Organization.
ID:Internal
Diameter.
IDENT: IDENT is short for identify. When air traffic control requests that the aircraft “identify,” the pilot
usestheIDENTfunctiontosendamessagetoATCthatenhancesorexaggeratestheblipontheairtraffic
controller’sradarscreen.TheIDENTfunctionshouldonlybeactivatedatthe
requestofATC.
IIC:InterrogatorIdentifierSubfield. The4bitIISwithintheSDfield, containstheself‐identificationcodeof
theinterrogator.
IPAddress:InternetProtocolAddress.Anumericallabelassignedtoadeviceparticipatinginacomputer
networkthatusestheInternetProtocolforcommunication.
LSB:Leastsignificant
bit.
LSN:Leastsignificantnibble(4bits).