| AMT | Aeronautical Mobile Telemetry |
| ATC | Auxiliary Terrestrial Component |
| AWS | Advanced Wireless Services |
| BEA | Bureau of Economic Analysis Economic Area |
| BS | Base Station |
| BSS | Broadcast Satellite Service |
| BT | Bluetooth |
| CDF | Cumulative Distribution Function |
| CSV | Comma Separated Values |
| DL | Downlink |
| DTT | Digital Terrestrial Television |
| DVB | Digital Video Broadcasting |
| EESS | Earth Exploration Satellite Service |
| EIRP | Equivalent Isotropic Radiated Power |
| ENG | Electronic News Gathering |
| EPFD | Equivalent Power Flux Density |
| ES | Earth Station |
| ETSI | European Telecommunication Standards Institute |
| FCC | Federal Communications Commission |
| FDP | Fractional Degradation in Performance |
| FS | Fixed Service |
| FSS | Fixed Satellite Service |
| GSM | Global System for Mobiles |
| GSO | Geostationary Orbit |
| HAPS | High Altitude Platform Station |
| HEO | Highly Elliptical Orbit |
| IDWM | ITU Digitised World Map |
| IFIC | International Frequency Information Circular |
| IMT-2000 | International Mobile Telecommunications - 2000 |
| ITU | International Telecommunications Union |
| LEO | Low Earth Orbit |
| MRCC | Maritime Rescue Co-ordination Centres |
| MS | Mobile station |
| MSS | Mobile Satellite Service |
| NFD | Net Filter Discrimination |
| NGSO | Non-Geostationary Orbit |
| PCS | Personal Communication Services |
| PFD | Power Flux Density |
| PMR | Private Mobile Radio |
| PtMP | Point to Multi-Point |
| PtP | Point to Point |
| RAS | Radio Astronomy Service |
| RX | Receive |
| S-DARS | Satellite Digital Audio Radio Service |
| SRR | Short Range Radar |
| SRS | Space Radiocommunication Stations |
| TIA | Telecommunication Industry Association |
| TLE | Two Line Element |
| TT&C | Telemetry Telecommand and Control |
| TVRO | Television Receive Only |
| TX | Transmit |
| UAV | Unmanned Aerial Vehicle |
| UE | User Equipment (typically a mobile handset) |
| UL | Uplink |
| UT | User Terminal |
| WCDMA | Wideband Code Division Multiple Access |
| WRC | World Radiocommunications Conference |