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Principle of Communication Engineering: Multiplexing & De-multiplexing
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Principle of Communication Engineering: Multiplexing & De-multiplexing
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20 Questions

1. What is the time allocated for each channel if the number of samples per frame is 4 and the frame rate is 100frames/sec?
2. The circuit used to regenerate clock pulses from the transmitted PAM signals is called ____
3. Serial transmission is not possible without time division multiplexing.
4. In which of the following systems multiplexing is not necessary?
5. Which of the following device is used to demultiplex the received signal?
6. The transmission of multiple signals in a common frequency without interference is called _______
7. Which of the following device was used in early TDM/PAM telemetry systems?
8. The system which uses FM for the subcarriers is called _____
9. What is the individual carrier frequency of each signal called?
10. For frequency division multiplexing who defines the channel bandwidth?
11. Multiplexing increases the number of communication channels for transmission.
12. What device is used to demodulate a time division multiplexed analog wave?
13. What are used to reduce or stop synchronization problems while receiving?
14. Which circuit does the actual multiplexing process in frequency division multiplexing?
15. In a four channel system, all four signals transmitted contain information.
16. Which of the following is not an advantage of time division multiplexing?
17. What type of multiplexing is widely used in cellphones?
18. Frequency division multiplexing:Frequency slots::time division multiplexing:?
19. What is the purpose of one shot multivibrator?
20. Time division multiplexing: Digital signal:: Frequency division multiplexing:?

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