| |||
| signal bipolaire strict; signal bipolaire; signal bipolaire alternant | |||
|
alternate mark inversion : 14 phrases in 3 subjects |
| Communications | 4 |
| Electronics | 7 |
| Power lines | 3 |
| |||
| signal bipolaire strict; signal bipolaire; signal bipolaire alternant | |||
|
alternate mark inversion : 14 phrases in 3 subjects |
| Communications | 4 |
| Electronics | 7 |
| Power lines | 3 |