| |||
| batido de frecuencia | |||
|
frequency beat : 24 phrases in 8 subjects |
| Communications | 8 |
| Electronics | 9 |
| Information technology | 1 |
| Mathematics | 1 |
| Measuring instruments | 1 |
| Radiolocation | 2 |
| Technology | 1 |
| Transport | 1 |
| |||
| batido de frecuencia | |||
|
frequency beat : 24 phrases in 8 subjects |
| Communications | 8 |
| Electronics | 9 |
| Information technology | 1 |
| Mathematics | 1 |
| Measuring instruments | 1 |
| Radiolocation | 2 |
| Technology | 1 |
| Transport | 1 |