 |
| analog signal: 30 phrases in 11 subjects |
| Air defense | 1 |
| Automobiles | 1 |
| Aviation | 3 |
| Electronics | 7 |
| Engineering geology | 1 |
| Geophysics | 5 |
| Information technology | 2 |
| Project management | 1 |
| Space | 4 |
| Technology | 4 |
| Telecommunications | 1 |
|
| analog signal: 30 phrases in 11 subjects |
| Air defense | 1 |
| Automobiles | 1 |
| Aviation | 3 |
| Electronics | 7 |
| Engineering geology | 1 |
| Geophysics | 5 |
| Information technology | 2 |
| Project management | 1 |
| Space | 4 |
| Technology | 4 |
| Telecommunications | 1 |