 |
| |||
| redundant signal | |||
| counter signal | |||
| auxiliary signal; optional alarm | |||
| |||
| additional echoes (Ying) | |||
| дополнительный сигнал: 52 phrases in 10 subjects |
| Automobiles | 23 |
| Firefighting and fire-control systems | 1 |
| Makarov | 1 |
| Mass media | 16 |
| Nautical | 1 |
| Radio | 1 |
| Refrigeration | 1 |
| Technology | 4 |
| Telecommunications | 3 |
| Transport | 1 |