 |
| |||
| C.W. reception (continuous-wave reception, carrier-wave reception); Morse reception | |||
| aural reception | |||
| слуховой приём: 2 phrases in 2 subjects |
| Mass media | 1 |
| Telecommunications | 1 |
|
| |||
| C.W. reception (continuous-wave reception, carrier-wave reception); Morse reception | |||
| aural reception | |||
| слуховой приём: 2 phrases in 2 subjects |
| Mass media | 1 |
| Telecommunications | 1 |