 |
| transmit/ receive: 84 phrases in 13 subjects |
| Air defense | 7 |
| Aviation | 5 |
| Communications | 2 |
| Earth sciences | 2 |
| Electronics | 34 |
| General | 2 |
| Geophysics | 2 |
| Metallurgy | 1 |
| Radio | 9 |
| Shipbuilding | 1 |
| Space | 10 |
| Technology | 8 |
| Telecommunications | 1 |
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