 |
| |||
| direction finder | |||
| radio direction-finder; radiogoniometer | |||
| radio direction finder | |||
| radiogoniómetro: 56 phrases in 11 subjects |
| Aviation | 1 |
| Communications | 36 |
| Electronics | 1 |
| General | 1 |
| Information technology | 1 |
| Measuring instruments | 1 |
| Navigation | 1 |
| Statistics | 1 |
| Technology | 9 |
| Transport | 3 |
| United Nations | 1 |