| |||
echo-response | |||
signal return (WiseSnake) | |||
foldback (oleg.vigodsky) |
возврат сигнала: 25 phrases in 10 subjects |
Electronics | 2 |
General | 1 |
Mass media | 11 |
Nautical | 1 |
Programming | 2 |
Radiolocation | 1 |
Sailing | 1 |
Technology | 1 |
Telecommunications | 4 |
Telephony | 1 |