Q. Which of the following is a drawback of FM systems?

View solution

Q. Carrier signal in modulation technique is _______ signal.

View solution

Q. Modulation index of an AM signal is ratio of __________ to the _______

View solution

Q. If the peak message signal amplitude is half the peak amplitude of the carrier signal, the signal is _____ modulated.

View solution

Q. A percentage of modulation greater than ___________ will distort the message signal.

View solution

Q. The RF bandwidth of AM is ____________ the maximum frequency contained in the modulating message signal.

View solution

Q. Single sideband AM systems occupy same bandwidth as of conventional AM systems.

View solution

Q. How is the performance of SSB AM systems in fading channels?

View solution

Q. Which of the following is a disadvantage of tone-in-band SSB system?

View solution

Q. FFSR in AM systems stands for ________

View solution

Q. AM demodulation technique can be divided into _____ and _____ demodulation.

View solution

Q. Non coherent detection requires the knowledge of transmitted carrier frequency and phase at the receiver.

View solution

Q. A product detector in AM systems is also called ___________

View solution

Q. AM system use only product detector for demodulation. They never use envelope detectors.

View solution

Q. FM is a part of general class of modulation known as ______

View solution

Q. FM is called constant envelope because ______ of carrier wave is kept constant.

View solution

Q. Which of the following are two most important classes of angle modulation?

View solution

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

View solution

Q. Frequency modulation index defines the relationship between the ______ and bandwidth of transmitted signal.

View solution

Q. FM bandwidth is approximated using _______ rule.

View solution