|
signal indicator : 36 phrases in 16 subjects |
| Automobiles | 5 |
| Communications | 1 |
| Computer networks | 1 |
| Electronics | 2 |
| General | 1 |
| High frequency electronics | 1 |
| Information technology | 2 |
| Law enforcement | 1 |
| Makarov | 2 |
| Mass media | 1 |
| Military | 2 |
| Mobile and cellular communications | 1 |
| Rail transport | 1 |
| Technology | 6 |
| Telecommunications | 6 |
| Transport | 3 |