 |
| |||
| оптический вызов | |||
| lamp call: 12 phrases in 8 subjects |
| Armored vehicles | 1 |
| Communications | 1 |
| Metallurgy | 1 |
| Military | 1 |
| Nautical | 2 |
| Rail transport | 2 |
| Shipbuilding | 1 |
| Telecommunications | 3 |
|
| |||
| оптический вызов | |||
| lamp call: 12 phrases in 8 subjects |
| Armored vehicles | 1 |
| Communications | 1 |
| Metallurgy | 1 |
| Military | 1 |
| Nautical | 2 |
| Rail transport | 2 |
| Shipbuilding | 1 |
| Telecommunications | 3 |