Below are the answers key for the Multiple Choice Questions in Modulation Part 18.

851. Modulation

852. The carrier frequency changes.

853. Demodulation

854. Modulator

855. Multiplication

856. The modulation index

857. Information signal is distorted

858. m = 1

859. Envelope

860. Vm > Vc

861. 80.6%

862. Sidebands

863. 876.5 and 883.5 kHz

864. Frequency Domain

865. Carrier

866. 1.6 W

867. 25%

868. 85 W

869. 70%

870. 507 W

871. Sidebands

872. DSB

873. One sideband

874. Less spectrum space is used

875. Depends upon the use

876. 300 Hz to 3 kHz

877. 9 kHz

878. Frequency-shift keying

879. Frequency conversion

880. Convertor

881. 3.2 MHz

882. Pulse code modulation

883. 769.2 W

884. Peak envelope power

885. Independent sideband emission

886. Analog multiplication

887. Tuned circuit

888. Having the carrier vary a resistance

889. Variable resistance

890. PIN diode

891. Low-level modulation

892. 96 V

893. 12 W

894. Demodulator

895. Diode mixer

896. Balanced modulator

897. Both a and b

898. Lattice Modulator

899. Switches

900. DSB

#### Questions and Answers in Modulation Series

Following is the list of multiple choice questions in this brand new series:

**MCQ in Modulation**

**MCQ from Number 1 – 50**Answer key:

**PART 1**

**MCQ from Number 51 – 100**Answer key:

**PART 2**

**MCQ from Number 101 – 150**Answer key:

**PART 3**

**MCQ from Number 151 – 200**Answer key:

**PART 4**

**MCQ from Number 201 – 250**Answer key:

**PART 5**

**MCQ from Number 251 – 300**Answer key:

**PART 6**

**MCQ from Number 301 – 350**Answer key:

**PART 7**

**MCQ from Number 351 – 400**Answer key:

**PART 8**

**MCQ from Number 401 – 450**Answer key:

**PART 9**

**MCQ from Number 451 – 500**Answer key:

**PART 10**

**Questions and Answers in Modulation**

### Complete List of MCQ in Communications Engineering per topic

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