T|
|
| TACAN | Tactical Air Navigation System |
| TACS | Total Access Communications System |
| TAG | Technical Advisory Group |
| TAI | Temps Atomique International |
| TAPC | Terrestrial Aeronautical Public Correspondence = TFTS |
| T-DAB | Terrestrial Digital Audio Broadcasting |
| TBR | Technical Base for Regulation (ETSI) |
| TCAM | Telecommunications Conformity Assessment and Market Surveillance Committee (EC) |
| TDD | Time Division Duplex |
| TDF | Télédiffusion de France (F) |
| TDM | Time Division Multiplex |
| TDMA | Time Division Multiple Access |
| TDRS | Tracking and Data Relay Satellite |
| TDRSS | Tracking and Data Relay Satellite System |
| TDWR | Terminal Doppler Weather Radar |
| TEDS | TETRA Enhanced Data Service |
| TETRA | Trans European Trunked Radio |
| TETRAPOL | A PMR technology |
| TFTS | Terrestrial Flight Telephone System (= APC) |
| TG | Task Group (ITU) |
| TIA | Telecommunication Industry Association (USA) |
| TICT | Transport Information and Control systems |
| TLSI | Tracing Lost and Stolen Items |
| TMN | Telecommunication Management Network (ITU) |
| TMO | Trunked Mode Operation |
| TOVS | TIROS Operational Vertical Sounder (NOAA) |
| TPC | Transmitter Power Control |
| TRRL | Tactical Radio Link |
| TSAG | Technical Standardization Advisory Group (ITU) |
TSLI | Tracing Stolen and Lost Items |
