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moduleret signal; programsignal |
modulation : 447 phrases in 12 subjects |
Agriculture | 3 |
Communications | 150 |
Earth sciences | 6 |
Electronics | 214 |
Environment | 1 |
Finances | 2 |
General | 1 |
Information technology | 62 |
Law | 1 |
Music | 2 |
Technology | 2 |
Transport | 3 |