Which of the following is not a common application of frequency-division multiplexing? a. Local Area Network b. AM and FM broadcasting c. Television broadcasting d. Cellular telephone system
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Which of the following is not a common application of frequency-division multiplexing?
a. Local Area Network
b. AM and FM broadcasting
c. Television broadcasting
d. Cellular telephone system
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- 4. What do you mean by over modulation?Which of the following is not an effect caused by multipath in radio channel? a) Rapid changes in signal strength b) Random frequency modulation c) Power of base station d) Time dispersion6. The original electrical information signal to be transmitted is called * Modulating Signal Carrier Baseband Signal Source Signal 7. The Process of modifying a high frequency carrier with the information to be transmitted is called * Multiplexing Telemetry Detection Modulation
- 3. In an FM signal that modulating frequency is a 1.5-kHz sine wave. The carrier frequency is 1000 kHz. The frequencies of the third significant sidebands are ___ and ___ kHz.Solve all Q2: Fill in the blanks for the following 1- The main steps of communication system are 2- The Armstrong's method convert the 3- The main step of FM system is............ to.. ...........and Q3: a) Compare in details with aid of figures and equations between the Frequency Modulation (FM) and and Phase Modulation (PM) systems.(iii) Describe the purpose of multiplexing in an optical communication system and explain the advantages of multiplexing. (iv) How the performance of this system is measured? Provide an example.
- Digital Subscriber Lines can not be implemented with loading coils for the reason that a. loading coils are heavy and tend to sag the line b. loading coils are not compatible with DSL repeaters c. loading coils are only good for short distances d. loading coils attenuates signals beyond the voiceband 2. Under the 1st generation of analog mobile phone systems, what is the frequency used for advance mobile phones?Q24)This multiple choice question from DIGITAL COMMUNICATIONS course.just write for me the final answer. The choice of the number of bits per PCM word depends on the a. SNR b. Bandwidth c. None of the mentioned d. SNR and bandwidthIn data communications, we use periodic analog signals and Non periodic digital signals explain?
- The following figure is illustrating: Unmodulated Carrier 00 111 Raseband Digital Signal Moduluted Carrier a. phase modulation; b. phase shift-keying; c. frequency modulation; d. frequency shift-keying; e. combined phase and frequency modulation; f. none of these.4) This QUESTION FROM DIGITAL COMMUNICATIONS II course.Please help me with my homework. Thanks! The course subject is Fundamentals of Electronic Communications. 5. A DSBSC transmitter radiates 1 kW when the modulation percentage is 60%. How much of carrier power is required if we want to transmit the same message by an AM transmitter?