| |||
Einheitsfrequenz f | |||
Normalfrequenz f | |||
Eichfrequenz f | |||
Normalhaeufigkeit f (radar) |
standard frequency : 40 phrases in 8 subjects |
Communications | 5 |
Cultural studies | 1 |
Electronics | 5 |
General | 1 |
Measuring instruments | 2 |
Physics | 3 |
Radio | 1 |
Technology | 22 |