 |
| signal detection: 67 phrases in 17 subjects |
| Acoustics | 1 |
| Astronautics | 1 |
| Automated equipment | 5 |
| Aviation | 1 |
| Aviation medicine | 5 |
| Diplomacy | 1 |
| Electronics | 2 |
| Geophysics | 2 |
| High frequency electronics | 1 |
| Makarov | 6 |
| Military | 6 |
| Oil / petroleum | 1 |
| Programming | 1 |
| Quantum electronics | 1 |
| Radio | 15 |
| Technology | 16 |
| Telecommunications | 2 |