What is modulation and why is it important?

Modulation and its types play a crucial role in the rapid transmission of the signals from the sender to the receiver. Modulation is the superimposition of the signal wave (carrying the message) with a high-frequency carrier signal to ensure faster transmission of the signal.

What is modulation in communication?

Modulation is the process of encoding information from a message source in a way that is suitable for transmission. By superimposing a message on to a high frequency signal known as a carrier wave (or sinusoidal signal), video, voice and other data can be transmitted.

What is the concept of modulation?

Modulation is the addition of information to an electronic or optical carrier signal. In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, the carrier signal, with a modulating signal that typically contains information that is to be transmitted.

What are the disadvantages of modulation?

Disadvantages of Amplitude Modulation: An amplitude modulation signal is not efficient in terms of its power usage. It is not efficient in terms of its use of bandwidth. AM detectors are sensitive to noise hence an amplitude modulation signal is prone to high levels of noise. Reproduction is not high fidelity.

What is the importance of modulation?

Modulation is important to transfer the signals over large distances since it is not possible to send low-frequency signals for longer distances. Similarly, modulation is also important to allocate more channels for users and to increase noise immunity.

What do you mean by modulation?

Definition of modulate. transitive verb. 1 : to tune to a key or pitch. 2 : to adjust to or keep in proper measure or proportion : temper. 3 : to vary the amplitude, frequency, or phase of (a carrier wave or a light wave) for the transmission of information (as by radio) also : to vary the velocity of electrons in an electron beam.

What is modulation why do we need modulation?

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.