| Abbreviation | Definition |
|---|---|
| RTSPC | Real-Time Statistical Process Control |
| RTT | Radio Transmission Technology |
| RTTI | Real Time Tuning Interface |
| RTU | Remote Terminal Unit |
| RTU | RemoteTerminal Unit |
| RTW | Room Temperature Wet |
| RTY | ReTrY Limit |
| RUMP | Rear Unit of Many Purposes |
| RVE | Remote Video Encoding |
| RVM | Recovery Voltage Meter |
| RVP | Radio Voice Phenomena |
| RWI | Radio Wire Integration |
| RWOH | Reliability WithOut Hermeticity |
| RWS | Receiver Window Size |
| RWV | Random Wire Vertical |
| RXA | Received Analog signal |
| RXB | Receiver Box |
| RXD | Receiver Downstream |
| RXI | Receiver Input |
| RXINO | Transmitting and Receiving Input and Output |