Glossary

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Term Definition
D/A
Data Acquisition
Hits: 600
DAB
Digital Audio Broadcasting
Hits: 594
DAB+
Digital Audio Broadcasting plus (upgrade to the DAB standard using HE-AAC v2 audio coding)
Hits: 541
DAC
Digital to Analogue Convertor
Hits: 527
DALS
Dedicated Line Access
Hits: 523
DAMA
Demand Assigned Multiple Access
Hits: 565
DAPSK
Differential Amplitude Phase Shift Keying
Hits: 569
DASS
Digital Access Signalling Standard
Hits: 567
DAT
Digital Audio Tape
Hits: 539
DATV
Direct Antenna Television
Hits: 512
DAVC
Digital Audio Video Council
Hits: 561
DAVIC
Digital Audio Video Council
Hits: 582
dB
Decibel
Hits: 528
dBc
Decibel relative to Carrier
Hits: 561
dBc/Hz
Decibel relative to Carrier in one Hz bandwidth (Phase noise)
Hits: 554
dBi
Decibel relative to isotropic source
Hits: 478
dBK
Decibel relative to 1 deg K
Hits: 547
dBm
Decibel Milliwatt
Hits: 521
dBm0
Decibel relative to 1mW at point of zero reference level
Hits: 656
dBm0p
as dBm0 but psophometrically weighted
Hits: 542
dBm0ps
as dBm0p but weighted for audio transmission
Hits: 579
dBmV
decibels relative to 1mV
Hits: 517
DBPSK
Differential Binary Phase-Shift Keying
Hits: 615
DBPT
Deutsche Bundespost Telecom
Hits: 544
DBS
Direct Broadcast Satellite
Hits: 543
dBuV
decibels relative to 1uV
Hits: 503
dBV
decibels relative to 1V
Hits: 519
dBW
Decibel Watt
Hits: 507
DC
Direct Current; Direct Coupler
Hits: 538
DCC
Direct Card Connect, Digital Compact Cassettes; Data Communications Channel
Hits: 561
DCD
Data Carrier Detect; Duty Cycle Distortion
Hits: 565
DCE
Data Communications Equipment: Data Circuit terminating Equipment
Hits: 521
DCM
Direct Connect Module
Hits: 580
DCN
Data Communications Network
Hits: 547
DCP
Data Communications Processor
Hits: 518
DCS
Diagnostic and Control System, Digital Cross-connect System
Hits: 525
DCT
Discrete Cosine Transform
Hits: 506
DD
Dolby Digital
Hits: 556
DDC
Digital Down Converter
Hits: 514
DDCMP
Digital Data Communications Message Protocol
Hits: 590
DDD
Direct long- Distance Dialling
Hits: 553
DDJ
Data Dependent Jitter
Hits: 480
DDS
Direct Digital Synthesis, Dataphone Digital Service: Digital Data Service
Hits: 531
DE
Discard Eligible
Hits: 545
DEA
Digital Encryption Algorithm
Hits: 475
DECT
Digital Enhanced Cordless Telecommunications
Hits: 500
DES
Data Encryption Standard
Hits: 564
DFB
Distributed Feedback
Hits: 579
DFM
Design For Manufactureability
Hits: 549
DFR
Digital Fault Recorder
Hits: 526
DFSK
Differential Phase Shift Keying
Hits: 536
DFT
Design For Test: Discrete Fourier Transform
Hits: 448
DHCP
Dynamic Host Configuration Protocol
Hits: 546
DIA
Data Interface Adapter
Hits: 522
DID
Direct Inward Dialing
Hits: 516
DIN
Deutsche Industrie Normen
Hits: 523
DisEqC
Digital Satellite Equipment Control
Hits: 478
DIU
Data Interface Unit
Hits: 542
DLC
Digital Loop Carrier: Data Link Control
Hits: 466
DLIC
Data Link Connection Identifier
Hits: 542
DLSw
Data Link Switching
Hits: 481
DM
Delta Modulation
Hits: 555
DMA
Direct Memory Access
Hits: 454
DMB
Digital Multimedia Broadcasting
Hits: 453
DMM
Digital MultiMeter
Hits: 491
DMS
Digital Multiplex Systems
Hits: 481
DMT
Design Maturity Testing; Discrete Multitone
Hits: 473
DNIC
Digital Network Interface Circuit
Hits: 500
DNS
Domain Name System ( Internet )
Hits: 502
DOC
Department of Communications
Hits: 500
DOCSIS
Data Over Cable Service Interface Specification
Hits: 523
DOPSK
Differential Offset Phase Shift Keying
Hits: 599
DOS
Disc Operating System
Hits: 470
DP
Dial Pulsing
Hits: 502
DPAK
Power Transistor Surface Mount Package
Hits: 456
DPCM
Differential Pulse Code Modulation
Hits: 474
DPDT
Double-Pole, Double-Throw ( switch )
Hits: 474
DPM
Digital Processor Module
Hits: 507
DPM2
Digital Processor Module 2
Hits: 503
DPN
Data Packet Network
Hits: 575
DPO
Dial Pulse Originate
Hits: 555
DPSK
Differential Phase Shift Keying
Hits: 472
DPT
Dial Pulse Terminate
Hits: 526
DQPSK
Differential Quadrature Phase Shift Keying
Hits: 464
DR.
Dynamic Range
Hits: 453
DRAGA
Dual Rate Adaption Gate Array
Hits: 472
DRAM
Dynamic Random Access Memory
Hits: 496
DRC
Dynamic Range Control
Hits: 462
DRM
Digital Radio Mondiale
Hits: 555
DS
Digital Signal
Hits: 530
DS-0
Digital Signal Level 0 (64Kbps), Usually single voice channel
Hits: 511
DS-1
Digital Signal Level 1 (1.554 Mbps) 24 voice or other data services
Hits: 523
DS-3
Digital Signal Level 3 (45 Mbps) 28 DS-1 circuits
Hits: 472
DS-SSMA
Direct Sequence-Spread Spectrum Multiple Access
Hits: 486
DS/CDMA
Direct Sequence CDMA
Hits: 544
DS/PPM
Direct Sequence Pulse Position Modulation
Hits: 493
DS0
Digital Service level 0
Hits: 519
DSB
Double Sideband Modulation
Hits: 496
DSBSC
Double Sideband Suppressed Carrier
Hits: 491
DSD
Direct Stream Digital
Hits: 473

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