Below are the answers key for the Multiple Choice Questions in Modulation Part 15.
701. frequency deviators
702. 10 kHz
703. it is relatively free of spurious frequencies
704. PM modulator
705. is not rejected by the IF tuned circuits
706. PM demodulator
707. FM modulator
708. 48 kHz
709. FM demodulator
710. blocking
711. the padder capacitor
712. J.R. Carson
713. 72 percent
714. to allow adequate frequency coverage without switching
715. lower complexity and cost
716. narrowband FM
717. quasi-stationary
718. it is unaffected by AGC derived from a nearby transmission
719. J.R. Carson
720. single-sideband, full carrier
721. excessive use of spectrum space
722. Carson’s rule
723. deviation ratio
724. limiter
725. capture effect
726. adjacent channel interference
727. high-pass filter
728. class C
729. high frequencies
730. low-pass filter
731. differentiator
732. integrator
733. high frequencies
734. crystal oscillators are inherently stable and therefore more difficult for them to achieve high phase deviations and modulation indices
735. any of these
736. heterodyning
737. high-pass filter
738. low-pass filter
739. AFC
740. frequency discriminator
741. capture effect
742. 48 kHz
743. 2.122 kHz
744. less noise
745. preselector
746. IF amplifier
747. varactor diode
748. dielectric
749. discriminator
750. limiter
Questions and Answers in Modulation Series
Following is the list of multiple choice questions in this brand new series:
Complete List of MCQ in Communications Engineering per topic
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