 |
| signal strength: 47 phrases in 17 subjects |
| Antennas and waveguides | 2 |
| Communications | 2 |
| Electronics | 3 |
| General | 1 |
| Geophysics | 2 |
| High frequency electronics | 1 |
| Information technology | 1 |
| Makarov | 1 |
| Mass media | 7 |
| Military | 4 |
| Mobile and cellular communications | 1 |
| Nanotechnology | 1 |
| Navigation | 1 |
| Radio | 1 |
| Radiolocation | 1 |
| Technology | 13 |
| Telecommunications | 5 |