| Acronym | Meaning |
| SSA | Strapdown Sensor Assembly |
| RFREQ | Receive Frequency |
| QEC | Quick Engine Change (tdc 03) |
| XMIT | Transmit |
| REA | Request For Equitable Adjustment |
| EAB | Emergency Air Breathing (comm Sys For Submarines) |
| CATC | Carrier Air Traffic Control Center |
| DTR | Digital Tape Recorder |
| TIP | Trainer Improvement Program |
| I | Intermediate |