 |
| digital communications system: 45 phrases in 13 subjects |
| Communications | 3 |
| Computers | 2 |
| Electronics | 2 |
| General | 1 |
| High frequency electronics | 1 |
| Makarov | 1 |
| Mass media | 3 |
| Military | 11 |
| Security systems | 1 |
| Technology | 12 |
| Telecommunications | 5 |
| Telephony | 1 |
| Television | 2 |