 |
| |||
| amplitud modulada; modulación de amplitud; modulación en amplitud | |||
| modulação de amplitude: 56 phrases in 9 subjects |
| Communications | 14 |
| Earth sciences | 1 |
| Electric motors | 1 |
| Electronics | 26 |
| Information technology | 5 |
| Materials science | 1 |
| Radio | 4 |
| Technology | 2 |
| Telegraphy | 2 |