Amplitude Modulation varies the amplitude of the carrier wave in accordance with the message signal, while keeping its frequency and phase constant.
Which type of modulation is employed in India for radio transmission?
Asked in WBCS Main Paper 4 2023 · Topic: Data Communication and Transmission Modes (Analog and Digital Transmission)
Show answer
Answer: A. Amplitude modulation
More Information and Communication Technology questions
- In TV transmission, picture signal is _______ modulated.
- Which of the following is a class C IP address ? Here x can be any number between 0 to 255. - Question not attempted
- A block of addresses is granted to a small organization. We know that one of the addresses the block? Ans: C The first address in an IP block (network address) is found by setting all the host bits to zero. For a /28 subnet mask, 4 host bits are available, leading to a block size of 16. 25. Match the Service in Column-I with the corresponding relevant Example in Column-II - Column-I Column-II (Service) (Example) (a) Reliable byte stream (i) Voice over IP (b) Unreliable connec‐ (ii) Text messaging tion (c) Unreliable datagram (iii) Movie download (d) Acknowledged data‐ (iv) Electronic junk gram mail
- Which of the following is the primary function of a modem in a telecommunication system?
- The frequency modulation band broadcast between
- A 1 MHz sinusoidal signal carrier is amplitude modulated by a symmetrical square wave of period 100 $\mu$s. Which of the following frequencies will not be present in the modulated signal?
- In a commercial broadcasting system, the FM signal has a centre frequency 105 MHz and the highest frequency of 105.3 MHz. When modulated by a signal 5 kHz, the modulation index will be
- A 4 GHz carrier is DSB-SC modulated by a low-pass message signal with maximum frequency of 2 MHz. The resultant signal is to be ideally sampled. The maximum frequency of the sampling impulse train should be
All 1,360 Information and Communication Technology questions →