Modulation and Demodulation

A. The difference frequency is closer to oscillator frequency
B. Lower frequencies are easier to amplify
C. Only the difference frequency can be modulated
D. None of the above

A. Radio frequency
B. IF
C. Audio frequency
D. None of the above

A. 8 kW
B. 6 kW
C. 06 kW
D. 9 kW

A. Amplitude
B. Frequency
C. Phase
D. None of the above

A. Before the first RF stage
B. After the first RF stage
C. After several stages of amplification
D. None of the above

A. 8 kW
B. 6 kW
C. 06 kW
D. 9 kW

A. Amplitude of the carrier
B. Frequency of the carrier
C. Phase of the carrier
D. May be any of the above

A. Reception is less noisy
B. Higher carrier frequency
C. Smaller bandwidth
D. Small frequency deviation

A. Using a large number of amplifier stages
B. Using a push-pull circuit
C. Obtaining lower fixed intermediate frequency
D. None of the above

A. RF
B. IF
C. audio
D. Before RF