Description : Modulation and demodulation is performed by (a) Microwave (b) Satellite (c) Modem -Technology
Last Answer : (c) Modem converts digital signals to analog signals or analog signals to digital signals for the purpose of transmitting data over telephone lines or vice-versa.
Description : Modulation or demodulation alone cannot be an effective method- Explain ?
Last Answer : The process of converting digital signal to analog signal is called modulation and demodulation. Data communication is the combined result of both modulation and demodulation process. In order to facilitate ... the received signal are done by using modem at both the sender and the receiver.
Description : Write the types of modulation and demodulation ?
Last Answer : There are three main types of modulation. Namely: (a) Amplitude modulation: The modulation in which the amplitude of the carrier signal changes according to the modulating frequency is called ... the carrier signal changes according to the modulating frequency is called phase modulation.
Description : What is modulation and demodulation ?
Last Answer : Modulation: The method by which audio frequency is mixed with high frequency is called modulation. Demdulation: The method by which the original modulating signal is separated is called demodulation. That is, it separates the audio frequency from the high-frequency.
Description : What is demodulation ?
Last Answer : Digitalization of analog signal is called demodulation.
Description : The receive GCE system in an earth station performs what function(s)? A. Modulation and multiplexing B. Up conversion C. Demodulation and demultiplexing D. Down conversion
Last Answer : C. Demodulation and demultiplexing
Description : A form of single sideband emission where the degree of carrier suppression enable the carrier to be reconstituted and be used for demodulation. A. Half carrier single sideband emission B. Full carrier single sideband emission C. Reduced carrier single sideband emission D. Double sideband emission
Last Answer : C. Reduced carrier single sideband emission
Description : A single sideband emission in which the degree of carrier suppression enables the carrier to be reconstituted and to be used for demodulation. A. Reduce carrier single sideband emission ... single sideband emission C. Full carrier single sideband emission D. Standard single sideband emission
Last Answer : A. Reduce carrier single sideband emission
Description : The process of converting analog signals into digital signals so they can be processed by a receiving computer is referred to as: a. modulation b. demodulation c. synchronizing d. digitising
Last Answer : digitising
Description : Which of the following performs modulation and demodulation? a. fiber optics b. satellite c. coaxial cable d. modem e. none of the above
Last Answer : modem
Description : Demodulation is the process of A. converting digital signals toanalog signals B. converting analogsignals todigital signals C. combining many low speed channels into onehigh speed channel D. dividing the high-speed signals into frequency bands E. None of the above
Last Answer : converting analogsignals todigital signals
Description : Demodulation is aprocessof A. converting analog to digital signals B. converting digital to analogsignals C. multiplexing various signals intoone high speed line signals D. performing data description
Last Answer : converting analog to digital signals
Description : Which of the following is used for modulation and demodulation? A. modem B. protocols C. gateway D. multiplexer E. None of the above
Description : The process of converting analog signals into digital signals so they can be processed by a receiving computer is referred to as a. modulation b. demodulation c. synchronizing d. Digitizing
Last Answer : b. demodulation
Description : Which of the following performs modulation and demodulation? a. fiber optics b. satellite c. coaxial cable d. Modem
Last Answer : d. Modem
Description : How is conversion used in pulse demodulation?
Last Answer : Ppm, pfm, and pcm are converted to either pdm or pam for demodulation.
Description : How is a quadrature detector changed when used for phase demodulation?
Last Answer : The quadrature grid signal is excited by a reference from the transmitter.
Description : What is demodulation?
Last Answer : The process of recovering intelligence from a modulated carrier.
Description : Explain the demodulation of AM signal using diode detector.
Last Answer : Simple diode detector:- Explanation:- This is essentially just a half wave rectifier which charges a capacitor to a voltage nearly to the peak voltage of the incoming AM waveform s(t). ... detector output is proportional to the signal strength. Stronger Am signal higher is the dc AGC voltage.
Description : List different methods of demodulation of FM signal.
Last Answer : Balanced Slope detection Ratio detector Foster Seeley discriminator Phase locked loop demodulator