| English | Portuguese |
| amplitude modulation | amplitude modulada (A method of encoding information in a transmission, such as radio, using a carrier wave of constant frequency but of varying amplitude) |
| modulation standards | padrões de modulação (Protocols that determine how modems convert digital data into analog signals that can be transmitted over telephone lines) |
| pulse code modulation | modulação por impulsos codificados (A technique for digitizing audio into an uncompressed format by assigning a value to the amplitude of the signal at fixed intervals) |