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Communication Systems - Engineering

Q1:

In case of stabilized reactance modulator AFC system

A phase modulator is converted into frequency modulation by equalizer circuit

B the discriminator must have a fast time constant to provide demodulation

C the higher discriminator frequency, the better oscillator frequency

D the discriminator frequency must be too low, or the system will fail

ANS:C - the higher discriminator frequency, the better oscillator frequency

Correct Answer is D.