Acronyms: D

Acronym	Name
DER	Designated engineering representative
DERA	Defense Research and Evaluation Agency (U.K.)
DEU	Display electronics unit
DEWIZ	Distance Early Warning Identification Zone
DF	Direction Finder
DF	Direction finding
DFA	Direction finding antenna
DFAX	Digital Facsimile
DFCS	Digital flight control system
DFDAF	Digital flight data acquisition function
DFDAMU	Digital flight data acquisition management unit
DFDAU	Digital flight data acquisition unit
DFDR	Digital flight data recorder
DFDU	Digital flight data unit
DFGC	Digital flight guidance computer
DFGS	Digital flight guidance system
DFI	Direction Finding Indicator
DFIDU	Dual function interactive display unit
DFIU	Digital flight instrument unit
DFL	Daily Flight Log
DFM	Departure Flow Management
DFS	Deutsche Flugsicherung GmbH (Germany)
DFS	Digital frequency select
DFU	Digital function unit
DG	Directional gyro
DGNSS	Differential Global Navigation Satellite System
DGNSS	Differential global navigation satellite system
DGPS	Differential Global Positioning Satellite (System)
DGPS	Differential global positioning system
DH	Decision Height
DH	Decision height
DHCP	Dynamic host configuration protocol
DHS	Department of Homeland Security
DI	Data interrupt
DIA	Denver International Airport
DID	Direct Inward Dial
DIFAX	Digital facsimile
DIGNU	Deeply integrated guidance and navigation unit
DIP	Data interrupt program
DIP	Drop and Insert Point
DIP	Dual in-line package
DIR	Director
DIR/INTC	Direct intercept
DIRCM	Direct infrared countermeasures
DIRF	Direction Finding
DISA	Defense Information Systems Agency (U.S.)
DISC	Disconnect
DISCH	Discharge
DIST	Distance
DISU	Drug Investigation Support Unit
DITCO	Defense Information Technology Contracting Office Agency
DITS	Data information transfer system
DL	Data link
DL/MSU	Data loader/mass storage unit
DLAP	Data Link Applications Processor
DLAP	Data link application processor
DLC	Data link control
DLCI	Data link control identifier
DLE	Data link entity
DLK	Data link
DLL	Data link layer
DLM	Data link management unit
DLME	Data link and message engineering
DLNA	Diplexer/low-noise amplifier
DLORT	Data link operational requirements team
DLP	Data link processor
DLRS	Digital Legal Recording System
DLS	Data link service/system
DLU	Download unit
DM	Disconnected mode
DMA	Direct memory access
DMD	Digital memory device
DME	Distance Measuring Equipment
DME	Distance measuring equipment
DME/N	Standard DME
DME/N	DME normal
DME/P	DME precision
DME/P	Precision DME
DME/P	Precision Distance Measuring Equipment
DMM	Data memory module
DMN	Data Multiplexing Network
DMRS	Database Management Reporting System
DMS	Data Management System
DMS	Data link management system
DMS	Debris monitoring sensor
DMS	Drawing Management System
DMU	Data management unit
DNL	Day-- Night Equivalent Sound Level (Also called Ldn)
DNL	Day-Night Equivalent Sound Level
DOD	Direct Outward Dial
DOF	Digital Obstacle File
DOI	Department of Interior
DOS	Department of State
DOT	Department of Transportation
DOTCC	Department of Transportation Computer Center
DOTS	Dynamic Ocean Track System
DOTS	Dynamic ocean tracking system
DOVE	DSR Oceanic VSCS En Route Implementation Working Group
DP	Departure Procedures
DP	Instrument Departure Procedure

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Acronyms: D