 |
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| frequency selection switch | |||
| band switch (MichaelBurov) | |||
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| frequency shift keyer | |||
| переключатель частот: 19 phrases in 11 subjects |
| Astronautics | 1 |
| Automated equipment | 1 |
| Aviation | 1 |
| Computer networks | 1 |
| Information technology | 1 |
| Mass media | 1 |
| Nanotechnology | 4 |
| Pumps | 1 |
| Technology | 5 |
| Telecommunications | 2 |
| Television | 1 |