What are the advantages of modulation Mcq?

The main advantage of using modulation techniques is that it reduces the size of the antenna in the circuit and improves the quality of signal in communication.

What is the main advantage of digital modulation?

An advantage of digital modulation is that it can operate with much lower signal-to-noise ratio than can analog modulation, as shown in Figure 4.13. Also, output level is not dependent on optical level, and there is no degradation of signals through the system (to the point that they go away, of course).

What is modulation and why is it important?

Modulation allows us to send a signal over a bandpass frequency range. If every signal gets its own frequency range, then we can transmit multiple signals simultaneously over a single channel, all using different frequency ranges. Another reason to modulate a signal is to allow the use of a smaller antenna.

What are the advantages of frequency modulation and demodulation?

In radio transmission, an advantage of frequency modulation is that it has a larger signal-to-noise ratio and therefore rejects radio frequency interference better than an equal power amplitude modulation (AM) signal. For this reason, most music is broadcast over FM radio.

What are the advantages of angular modulation over amplitude modulation?

Angle modulation has several advantages over the amplitude modulation such as noise reduction, improved system fidelity and more efficient use of power. But there are some disadvantages too such as increased bandwidth and use of more complex circuits.

What do you mean by modulation?

In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, called the carrier signal, with a separate signal called the modulation signal that typically contains information to be transmitted. A modulator is a device or circuit that performs modulation.

What is the advantage of digital communication?

Advantages of Digital Communication The effect of distortion, noise, and interference is much less in digital signals as they are less affected. Digital circuits are more reliable. Digital circuits are easy to design and cheaper than analog circuits.

What are the advantages and disadvantages of digital methods?

It is easy to mix signals and data using digital techniques. The digital communication is fast, easier and cheaper. It can be tolerated the noise interference. It can be detect and correct error easily because of channel coding.

Why modulation is very important in communication system?

The need for Modulation Process in Communication A communication system must make a message and carrier signal ready for the transmission of communication channels. Another reason for its use is because of the multiplexing properties. During modulation, the size of the antenna matters the most.

Why is modulation important in telecommunications?

Modulation is simply a widely used process in communication systems in which a very high-frequency carrier wave is used to transmit the low-frequency message signal so that the transmitted signal continues to have all the information contained in the original message signal.