Question

The process of impressing any information by changing the original signal is called

Answer 1

Modulation

1. The process of impressing any information by changing the original signal is called modulation.
2. This process of mixing up the signal and the carrier wave is called modulation.
3. A low-frequency signal cannot be transmitted to long distances, as it lacks energy. So that it can reach the far-off destination, it is superimposed on a high-frequency wave in such a manner that some characteristics of the carrier wave change in accordance with the signal.
4. The signal obtained after mixing the original signal with the high-frequency wave is called modulated signal.