Q. Multiplexing increases the number of communication channels for transmission.

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Q. In which of the following systems multiplexing is not necessary?

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Q. Time division multiplexing: Digital signal:: Frequency division multiplexing:?

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Q. What type of multiplexing is widely used in cellphones?

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Q. The transmission of multiple signals in a common frequency without interference is called _______

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Q. For frequency division multiplexing who defines the channel bandwidth?

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Q. What is the individual carrier frequency of each signal called?

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Q. Which circuit does the actual multiplexing process in frequency division multiplexing?

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Q. Which of the following device is used to demultiplex the received signal?

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Q. The system which uses FM for the subcarriers is called _____

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Q. A cable TV service uses a single coaxial cable with a bandwidth of 860 MHz to transmit multiple TV signals to subscribers. Each TV signal is 6 MHz wide. How many channels can be carried?

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Q. Frequency division multiplexing:Frequency slots::time division multiplexing:?

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Q. Serial transmission is not possible without time division multiplexing.

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Q. What device is used to demodulate a time division multiplexed analog wave?

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Q. Which of the following device was used in early TDM/PAM telemetry systems?

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Q. What is the time allocated for each channel if the number of samples per frame is 4 and the frame rate is 100 frames/sec?

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Q. What is the purpose of one shot multivibrator?

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Q. The circuit used to regenerate clock pulses from the transmitted PAM signals is called ____

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Q. What are used to reduce or stop synchronization problems while receiving?

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Q. In a four channel system, all four signals transmitted contain information.

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