(OR) (Outside Routes)
(R) (Along Routes)
ADS Automatic Dependant Surveillance (Aeronautical)
AES Aircraft Earth Station
AGA Air-Ground-Air
AIS Universal Shipborne Automatic Identification System
ALD Assistive Listening Devices
AM Amplitude Modulation
AMRD Autonomous Maritime Radio Device
ASDE Airport Surface Detection Equipment
ASM Application Specific Messages
BBDR Broad Band Disaster Relief
BFWA Broadband Fixed Wireless Access
BMA Building Material Analysis
BSS Broadcasting Satellite Service
BWA Broadband Wireless Access
CB Citizen's Band
CCIR Comité Consultatif International des Radiocommunication
CDMA Coded Division Multiplexing Access
CEPT Conférence Européenne des Administrations des Postes et des Télécommunications
CGC Complementary Ground Component
civ. civil
COSPAS/SARSAT satellite search and rescue system
CRS Central Radio Station
CT0 Cordless Telephone 0
DECT Digital Enhanced Cordless Telecommunications
D-GPS Diferencial Global Positioning System
DME Distance Measuring Equipment
DMO Direct Mode Operation
DRM Digital Radio Mondiale
DSC Digital Selective Calling
DVB-T Digital Video Broadcasting - Terrestrial
e.i.r.p. Equivalent Isotropically Radiated Power
e.r.p. Effective Radiated Power
ECC Electronic Communications Committee
E-GSM Extended Global System for Mobile Communication
ELT Emergency Locator Transmitter
EMS European Mobile Satellite System
EN European Norm
ENG/OB Electronic News Gathering / Outside Broadcasting
EPIRB Emergency Position Indicating Radio Beacons
ERC European Radiocommunications Committee
ESIM Earth Station In-Motion
ESOMP Earth Stations On Mobile Platforms
EST Earth Station on Train
ESV Earth Stations on board Vessels
FDD Frequency Division Duplex
FM Frequency Modulation
FRMCS Future Railway Mobile Communication System
FS Fixed Service
FSS Fixed Satellite Service
FWA Fixed Wireless Access
GBAS Ground-Based Augmentation System
GBSAR Ground-Based Synthetic Aperture Radar
GMDSS Global Maritime Distress and Safety System
GMPCS Global Mobile Personal Communications System
GNSS Global Navigation Satellite System
GPR/WPR Ground- and Wall- Probing Radar
GSM Global System for Mobile Communication
GSM-R Global System for Mobile Communications on Railways
GSO Geostationary Satellite Orbit
HAPS High Altitude Platform Station
harmon. harmonised (mil. band)
HDFS  High Density Fixed Service
HDFSS High Density Fixed Satellite Service
HD-GBSAR High Definition Ground Based Synthetic Aperture Radar
HEST High e.i.r.p. Satellite Terminals
IBCN Integrated Broadband Communications Network
IFF Identification Friend or Foe
ILS Instrument Landing System
IMT International Mobile Telecommunications
ISM Industrial, Scientific and Medical
ITS Inteligent Transport Systems
ITU International Telecommunication Union
ITU-R International Telecommunication Union-Radiocommunication
JTIDS Joint Tactical Information Distribution System
JTRS Joint Tactical Radio System
L Locator
LAES Location Application for Emergency Services
LAN Local Area Network
LEST Low e.i.r.p. Satellite Terminals
LP FM Low Power Frequency Modulation
LP-AMI Low Power Active Medical Implants
LPD Low Pover Device
LPR Level Probing Radar
LPR-UWB Level Probing Radar Ultra Wide Band
LT1 Location Tracking type 1
LT2 Location Tracking type 2
LTE Long Term Evolution
LVT Low Volume Terminal
LW Long Waves
MBANS Medical Body Area Network System
MCA Mobile Communications on board Aircraft
MCV Mobile Communication Services on board Vessels
MES Mobile Earth Station
MFCN Mobile/Fixed Communications Networks
MGWS Multiple Gigabit Wireless System
MIDS Multifunctional Information Distribution System
mil. military
MLS Microwave Landing System
MMDS Microwave Multipoint Distribution System
MSI Maritime Safety Information
MSS Mobile Satellite Service
MVDS Multipoint Video Distribution System
MW Medium Waves
MWS Multimedia Wireless System
NAVDAT Navigational Data
NAVTEX Narrow-Band Direction-Printing Telegraphy System for Transmission of Navigational and Meteorological Warnings and Urgent Information to Ships
NDB Nondirectional Radio Beacon
NGSO Non-Geostationary Satellite Orbit
NMR Nuclear Magnetic Resonance
NP2M Narrowband Point to Multipoint system
OB Outside Broadcasting
PAMR Public Access Mobile Radio
PAR Precision Approach Radar
PLB Personal Locator Beacon
PMR Private/Professional Mobile Radio
PMSE Programme Making and Special Events
POCSAG Post Office Code Standards Advisory Group
P-P Point-to-Point
PPDR Public Protection and Disaster Relief
R radio
RA Radio Astronomy
RFID Radio Frequency Identification
RLAN Radio Local Area Network
RMR Railway Mobile Radio
RR Radio Regulations
RTE Radar Target Enhancer
SAB Service Ancillary to Broadcasting
SAP Service Ancillary to Programme Making
SAR Search and Rescue
SATCOM Satellite Communication
SIT/SUT Satellite Interactive Terminal/Satellite User Terminal
SNG Satellite News Gathering
S-PCS Satellite Personal Communication Service
SRD Short Range Device
SRR Short Range Radars
SSR Secondary Surveillance Radar
STT Small Tactical Terminal
SUP suppressed
SW Short Waves
TACAN Tactical Air Navigation
TACS Total Access Communications System
T-DAB Terrestrial Digital Audio Broadcasting
TDD Time Division Duplex
TETRA Terrestrial Trunked Radio
TETRAPOL digital professional mobile radio standard for digital voice and data communication used by public safety and military throughout Europe
TLPR Tank Level Probing Radar
TRA-ECS Terrestrial Radio Applications capable of providing Electronic Communications Services
TS Terminal Station
TTT Transport and Traffic Telematics
TV Television
UAS Unmanned Aircraft System
UE User Equipment
ULP-AID Ultra Low Power Animal Implantable Devices
ULP-AMI Ultra Low Power Active Medical Implants
ULP-MMI Ultra Low Power Medical Membrane Implant
ULP-WMCE Ultra Low Power Wireless Medical Capsule Endoscopy
UWB Ultra Wide Band
VDES VHF Data Exchange System
VHF Very High Frequency
VLBI Very Long Baseline Interferometry
VMES Vehicle Mounted Earth Station
VOR VHF Omnidirectional Range
WAIC Wireless Avionics Intra-Communications systems
WAS Wireless Access Systems
WRC World Radiocommunication Conference