| |||
| differentielle Phasenmodulation | |||
|
modulation de phase differentielle : 6 phrases in 2 subjects |
| Electronics | 5 |
| Telegraphy | 1 |
| |||
| differentielle Phasenmodulation | |||
|
modulation de phase differentielle : 6 phrases in 2 subjects |
| Electronics | 5 |
| Telegraphy | 1 |