List of abbreviations: D

DAB Digital Audio Broadcast
DBS Digital Broadcasting by Satellite
dBsd dB below maximum spectral density
DCA Dynamic Channel Assignment
DCS1800 Digital Communication System
DCT Discrete Cosine Transform Coding
DEC ECC DECision (CEPT)
DECT Digital Enhanced Cordless Telecommunication
DFSS>/td> Digital Fixed Service System
DFS Dynamic Frequency Selection
DFVLR Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt (D)
DG Drafting Group
DGLR Deutsche Gesellschaft für Luft- end Raumfahrt (D)
DGPS Differential Global Positioning System
DGTP Directoraat Generaal Telecommunicatie en Post van het Ministerie van Verkeer en Waterstaat (NL)
DLMS Digital Land Mobile System
DME Distance Measuring Equipment
DMO Direct Mode Operation
DMR Digital Mobile Radio
DPSK Differential Phase-Shift Keying
DQPSK Differential Quadratic Phase-Shift Keying
DRM Digital Radio Mondiale
DRS Data Relay Satellite
DRTS Data Relay and Tracking Satellite
DRTSS Data Relay and Tracking Satellite System
DSBS Digital Sound Broadcasting Satellite
DSI Detailed Spectrum Investigation (CEPT)
DSN Deep Space Network
DSP Digital Signal Processor
DSRC Dedicated Short Range Communications
DSRR Digital Short Range Radio
DSSS Direct Sequence Spread Spectrum
DTH Direct To Home (for satellite TV)
DTI Department of Trade and Industry (GB)
DVB Digital Video Broadcast
DVB-S Digital Video Broadcast – Satellite
DVB-T Terrestrial Digital Video Broadcast
DW Deutsche Wetterdienst (D)
DWC Digital Wireless Communications