Modulation

Which of the following factors justify the need of modulating a signal:

Among following, the factor which justifies the need of modulating a signal is

How does the effective power radiated by an antenna (of length l) vary with wavelength?

What are some disadvantages of using frequency modulation?

In amplitude modulation, bandwidth is _____ maximum frequency of the audio signal.

Which of the following modes of transmission has the lowest noise immunity?

__________ type of transmission, one complete side-band of the signal and half of the remaining side-band is sent together. Enable GingerCannot connect to Ginger Check your internet connection
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Which of the following is a type of amplitude modulation?

Give three advantages of amplitude modulation.

Modulation is the process of varying the fundamental properties of the base signal by superimposing it with a carrier signal to carry the signal from one location to the other. 

What is the advantage of Phase modulation over Frequency modulation?

The process in communication system where the low frequency signals are superimposed with high frequency carrier waves is known as _____.

What is modulation? Explain the types of modulation with necessary diagrams.

Modulation is the process of varying the fundamental properties of the base signal by superimposing it with a carrier signal to carry the signal from one location to the other. 

Assertion $\left(A\right) :$ $\mathrm{FM}$ signal is less susceptible to noise than $\mathrm{AM}$ signal.
Reason $\left(R\right) :$ $\mathrm{FM}$ has small operating frequency range.

For practical application modulation index

Explain need of modulation.

Explain with diagram amplitude modulation, frequency modulation and phase modulation.

Explain modulation.

Name the method used to superimpose signal on carrier wave?