ADS-C Automatic.Dependent.Surveillance–Contract.. (aka.ADS-A)
ADSEL Address.Selective..ASSR.system.electronically. arranged.to.address.each.transponder.selectively..
Only a particular transponder will respond, thus
avoiding.garbling..ADSEL.uses.a.monopulse.
technique to provide more accurate bearing
measurement..ADSEL.is.compatible.with.DABS.. (Refer.to.Mode.S.transponders.) ADSP Automatic.Dependent.Surveillance.Panel ADSU (.1.).Automatic.Dependent.Surveillance.System.. (.2.).Automatic.Dependent.Surveillance.Unit ADTN Administrative.Data.Transmission.Network ADV Advance AECU Audio.Electronic.Control.Unit AEEC Airlines.Electronic.Engineering.Committee AEG Aircraft.Evaluation.Group AEP (.1.).Audio.Entertainment.Player. (.2.).Autopilot.Engage.Panel
AERA Automated En Route traffic control AES Aircraft.Earth.Station AEU Auxiliary Equipment Unit AF Airway.Facilities
AFC ( 1 ) Automatic Frequency Compensation.
( 2 ) Automatic Frequency Control
AFCAS Automatic.Flight.Control.Augmentation.System AFCS Automatic.Flight.Control.System AFD (.1.).Adaptive.Flight.Display..
(.2.).Advanced.Flight.Deck.. (.3.).Autopilot.Flight.Director AFDC Autopilot.Flight.Director.Computer AFDS Autopilot.Flight.Director.System AFDX Avionics.Full.Duplex.Switched.Ethernet AFEPS ACARS.Front.End.Processing.System AFI Authority Format Identifier AFIS (.1.).Airborne.Flight.Information.System. (.2.).Automatic.Flight.Information.Service AFM Aircraft.Flight.Manual AFN ATS Facilities Notification
AFS (.1.).Aeronautical.Fixed.Service. (.2.).Airborne.File.Server.. (.3.).Automatic.Flight.System
AFSS Automatic.Flight.Service.Station AFSK Audio Frequency Shift Keying AFTN Aeronautical.Fixed.Telecommunications AFTRCC Aerospace.and.Flight.Text.Radio.Coordinating.
Council A/G Air/Ground AGACS Automatic.Ground-Air.Communication.System..It.
is.also.known.as.ATCSS.or.DATA.LINK. AGATE Advanced.General.Aviation.Transport.Experiment AGC Automatic.Gain.Control..AGC.is.used.to.maintain.
the.output.level.of.the.receiver. AGIS Air.Ground.Intermediate.System AGL Above.Ground.Level. AGS ARINC.661.Graphics.Server
AH Alert.Height:.A.height.above.the.runway.based. on.the.characteristics.of.the.aircraft.and.its.fail. operational.landing.system,.above.which.a. Category.III.approach.would.be.discontinued.and. a.missed.approach.initiated.if.a.failure.occurred.in. one.of.the.redundant.parts.of.the.fail.operational. landing.system,.or.in.the.relevant.ground. equipment.
AHC Attitude.Heading.Computer:.A.computer.that.is. part.of.the.AHRS..Generates.information.for.the. pitch.and.roll.displays.
AHRS Attitude/Heading.Reference.Systems:.System. which.measures.and.outputs.aircraft.attitude.and. heading.
AHS Attitude/Heading.System:.Either.an.AHRS.or.an. IRS.
AIDS Aircraft.Integrated.Data.System
AIT Advanced.Intelligence.Tape.-.used.for.the.storage. of digital video and audio files
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