Do We Need Modulation in Communication?

To send the message signal, the length of the antenna should be a quarter wavelength of the used frequency. Thus, modulation is required to increase the frequency of the message signal and to enhance its strength to reach the receiver.

Is modulation needed for communication?

Wireless Communication By using modulation to transmit the signals through space to long distances, we have removed the need for wires in communication systems. The technique of modulation helped humans to become wireless.

What is modulation and why it is necessary?

Modulation is the process of varying one or more properties of a periodic waveform, called the carrier signal, with a modulating signal that typically contains information to be transmitted. It is necessary because of following reasons: ... Avoids mixing of signals. Increases the range of communication.