Frequency modulated signal is regarded as the phase modulated signal in which the modulating wave is differentiated before modulation.

In indirect method, the carrier frequency is directly varied in accordance with the input modulating signal.

Which of the following is used to vary the frequency of the carrier frequency in accordance with the baseband signal amplitude variations in direct method of FM generation?

Which of the following is not a technique for FM demodulation?

Which of the following FM demodulator is sometimes known as pulse averaging discriminator?

FM can improve the receiver performance through adjustment of transmitted power.