i.Discuss the rationale behind the application of FM for indigenous communication. ii. Explain why receivers are very unique in their functions. Discuss all aspects of their uniqueness. iii. Explain in detail the essential things that happen to the modulating signal before transmission. Discuss all types or kinds available if necessary. Note that without these essential systems, transmission will not be able to be sent to yield the needed result.

Q: For the QPSK modulator shown in the figure below, change the +90° phase-shift network to -90°.…

A: The given QPSK modulator figure is shown below,

Q: 15.a. You're planning an installation of fiber optic cables in several locations in a building.…

A: planning an installation of fiber optic cables in several locations in a building outside diameter…

Q: The modulator is the main part of the receiver in a basic transmission system. True False

A: Given statement:  The modulator is the main part of the receiver in a Basic transmission system Is…

Q: 4) Find the modulation index? 5) Find the transmission bandwidth of the modulated signal, in Hz? 6)…

A: An AM signal is given by s(t)=[10+m(t)]cos(106πt) .where m(t)=0.5sin(104πt), Volts.We need to find4.…

Q: A carrier is modulated by three audio tones. If the modulation indexes for the tones are 0.3, 0.4,…

A:

Q: What are the key components and design principles of communication systems, and how do you choose…

A: Communication systems are complex electronic systems that enable information to be transmitted from…

Q: 7. Differentiate FM and AM? 8.

A: Modulation:- The process in which imposing the signal of input into the carrier signal is called…

Q: Q2. An FM transmitter is modulated with a single tone A, cos (2nA2t) and a carrier amplitude of A3…

A:

Q: Q' Seleet the best answer for only FOUR of the following : 1.Which of the following statements are…

A: We are authorized to answer three subparts at a time since you have not mentioned which part you are…

Q: Select the following correct answers about Multiplexing.a) Cable companies use Frequency Division…

A: In communication, multiplexing is the process in which more than one signals coming from subscribers…

Q: Q2. An FM transmitter is modulated with a single tone A, cos (2TA,t) and a carrier amplitude of Az…

A: An FM transmitter is modulated with a single tone A1cos (2ππA2t) and a carrier amplitude of A3 volt.…

Q: c) A TV signal was transmitted with peak to peak voltage of 4 and 34 dB signal to quantization noise…

A: First we will find out power for given voltage ,then we will calculate data rate and then we need to…

Q: Explain by block diagram and equations the indirect method of Generating FM?

A:

Q: Explain why we can still receive monophonic FM signal with our stereophonic FM receiver by showing…

A: An Audio amplifier and switching device for a stereo system. The receiver contains inputs for all…

Q: For a ring oscillator with 9 NOT gates and having a propagation delay of t= 50 ns, what frequency…

A:

Q: 9- In AM DSB/SC, the carrier is suppressed in order to: a) simplify the receiver design b) reduce…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: Discuss the various modulation techniques used in wireless communication systems and their…

A: To discuss:Discuss the various modulation techniques used in wireless communication systems and…

Q: Q2. An FM transmitter is modulated with a single tonc A, cos (2tA,t) and a carrier amplitude of Az…

A: Since Ac=A3=83 v  And RL=A4=419 ohm    So Pavg=(83^2)/(4×419)     Pavg=4.11watt

Q: c) The superheterodyne receiver (SuperHet) is an architecture that enables the same receiver to…

A: BLOCK DIAGRAM OF SINGLE STAGE       SUPERHETERODYNE RECEIVER

Q: What is the effect on the signal–to–noise ratio of a system (in dB) if the bandwidth is doubled,…

A: It is given that: B=b B'=2b

Q: Enumerate things that can be done to improve transmission distance and communications reliability of…

A: The VHF bands(between 30 MHz to 300 MHz), UHF and microwave and communication like television, radar…

Q: Q1- A FM modulator is used to transmit a message with amplitude of 4 Volts and frequency of 20 Hz,…

A:

Q: 3.Why modulation index for FM generally higher than one?

A: Modulation index of Frequency Modulation (FM) signal is may be less than or equal to one or greater…

Q: b. i. Discuss the rationale behind the application of FM for indigenous communication. li. Explain…

A: (i) The communication are the activities that include the transmission of the messages a news, a…

Q: 1. Explain in no more than two sentences why we use a carrier signal in radio frequency…

A: Since you have posted the multiple questions so we are supposed to answer the 1st one. 1)  Since…

Q: Q2.(Forty-five signals, 15 of them have 4.5 kHz bandwidth, jthe other have bandwidth of 3 kHz are…

A:

Q: Q2: let the bandwidth of each channel is (136 Hz). the capacity of the whole communication system…

A: Given: Let the bandwidth of each channel is (136 Hz). The capacity of the whole communication system…

Q: 2. Complete description of an FM modulator (transmitter) and an FM demodulator (Receiver) 3.…

A: "Since you have asked multiple questions, we will answer one questions for you. If you want any…

Q: List the reasons why the modulation is desired in a wireless communication system considering the…

A: Modulation is a technique that is used in carrier wave to transmit some information at low…

Q: Discuss, briefly, two of the following concepts: i Envelope detection. il. Stereophonic FM…

A: In the following section, envelope detection and frequency discrimination have been discussed.

Q: Which of the following is not a major benefit of FM over AM? O a. greater efficiency O b. capture…

A: option a)   FM transmission is more efficient because all the transmitted power is useful but in AM…

Q: xplain why we can still receive monophonic FM signal with our stereophonic FM receiver by showing…

A: An stereo receiver is an amplifier and switching device used for a stereo system. The input given is…

Q: Threshold SNR calculation. A certain digital receiver system requires a SNR of -3 dB (power ratio)…

A: Given data: The SNR value is = - 3 dB The bandwidth, B=80 KHz The effective input noise temperature…

Q: Why it is necessary to find transfer function of a system?

A: The transfer function is basically a relationship between input signal and output signal . It is…

Q: Suppose, that in an attempt to increase range, cordless telephone manu- facturers double the power…

A: Cordless telephones communicates using high frequency bandwidth that are allocated for this use. The…

Q: Describe the difficulties in listening to a receiver without AGC.

A: AGC is stands for automatic gain control which is used in television system to control the gain of…

Q: ASSESSMENT Matching Type. Match items from column A with column B by writing the letters on the…

A: The entire topic is based on Amplitude modulation of Analog Communication. Amplitude modulation is…

Q: Illustrate the working of differential pressure transmitter with neat diagram.

A: differential pressure transmitter: An electrically insulating fill fluid (often a liquid silicone…

Q: a) Explain with a neat diagram the construction and working of a superheterodyne receiver.

A: solving only a part Block diagram of super heterodyne receiver is as shown below.

Frequency Modulation

Frequency modulation is a method or process of encoding the data of a specific signal (analog or digital) by modulating the carrier wave frequency according to the frequency of the modulated signal. Modulated signals are nothing more than information or data that should be conveyed after being converted into electronic signals.