Operations
PAPI Precision.Approach.Path.Indicators
PAR Precision.Approach.Radar..An.X-band.radar.that. scans.a.limited.area.and.is.part.of.the.ground-controlled.approach.system.
PAS Passenger.Address.System
PAT (.1.).Pilot.Applications.Terminal.. (.2.).Primary.Access.Terminal
PAU Passenger.Address.Unit
PAV Presence.And.Validity
PAVES Programmable.Audio.Video.Entertainment.
System
PAWES Performance.Assessment.and.Workload.
Evaluation
PAX Passenger
PBA Push.Button.Annunciator
PBD Place.Bearing/Distance.(waypoint)
PBID Post.Burn-In.Data
PBX Private.Branch.Exchange
PC (.1.).Personal.Computer..
(.2.).Printed.Circuit
P-Code The.GPS.precision.code
PCA P physical Configuration Audit
PCB Printed.Circuit.Board
PCC Pilot.Controller.Communication
PCI (.1.).Protocol.Control.Information..The.N-PCI.is.
exchanged between peer network members (OSI
Model).to.coordinate.joint.information...
(.2.).Peripheral.Computer.Interface/Interconnect
PCIP Precipitation
PCM Pulse.Code.Modulation
PCMCIA Personal.Computer.Memory.Card.Interface.
Association
PCU (.1.).Passenger.Control.Unit..
(.2.).Power.Control.Unit
PD Profile Descent
PDA Premature.Descent.Alert
PDB Performance.Data.Base
PDC Pre-Departure.Clearance
PDCU Panel.Data.Concentrator.Unit
PDD Package.Design.Document
PDDI Product Definition Data Interface. Standardizes digital descriptions of part configurations and properties.needed.for.manufacturing.
PDF (.1.).Primary.Display.Function.. (.2.).Portable.Document.Format
PDL (.1.).Program.Design.Language.. (.2.).Portable.Data.Loader
P-DME Precision Distance Measuring Equipment PDN Public.Data.Network.(CC.ITT/ISD) PDOP Position Dilution Of Precision. AGPS term for
error.introduced.into.the.GPS.calculations.
PDOS Powered Door Opening System
PDR Preliminary.Design.Review
PDS Primary.Display.System
PDU (.1.).Power.Distribution.Unit.. (.2.).Power.Drive.Unit.. (.3.).Protocol.Data.Unit..The.N-PDU.is.a. combination.of.the.N-PCI.and.the.N-UD.or.. N-SDU..The.N-PDU.is.the.total.information.that.is. transferred between peer network members (OSI Model).as.a.unit.. (.4.).Pilot.Display.Unit
PECT Peer.Entity.Contact.Table
PEP Peak.Envelope.Power
PERF Performance
Performance A.relative.number.used.to.compare.the.
Index performance.of.different.radar.systems..It.is. calculated.from.transmitter.peak.power,.antenna. gain,.pulse.width,.prf,.antenna.beam.width.and. the receiver noise figure.
| 
