frequency hopping: 101 phrase in 13 subjects |
Computer networks | 1 |
Electronics | 9 |
High frequency electronics | 1 |
Information security and data protection | 9 |
Information technology | 7 |
Makarov | 2 |
Mass media | 12 |
Military | 25 |
Nanotechnology | 1 |
Radiolocation | 1 |
Security systems | 11 |
Technology | 16 |
Telecommunications | 6 |