1. The maximum frequency deviation of the carrier is + 15 kHz and the maximum modulating frequency is 3 kHz, calculate for the modulation index.

Q: What is the overall modulation index for am for dual tone modulation? The individual indices are 0.3…

A: The solution is provided in the following section:

Q: A carrier signal given by 10cos27T×108t volt is FM modulated by single tone message 4cos27tx103t…

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

Q: b) A carrier is frequency-modulated with a sinusoidal signal of 2 KHz resulting in a maximum…

A: Given in question:fm : message frequencyfm=2 kHz∆f: maximum frequency deviation∆f=5 kHz 1. The…

Q: State modulation of signals, and distinguish different modulation techniques, thereon identify which…

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Q: 7. In Frequency Modulation, carrier varies in accordance with the modulating signal, The number of…

A: Given: In the given question first of all they want to know the concept of frequency modulation.…

Q: Determine the permissable range in maximum modulation index for: i) Commercial FM which has 30 Hz to…

A: Modulation is a process by which some properties of carrier signal is varied according to modulating…

Q: Determine the frequency of the local oscillator at the superheterodyne receiver.

A: Given: Intermediate frequency (Fif)=10.7MHz Received transmitted signal, center frequency…

Q: the total sampling time

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Q: Question 3: What are the similarities and differences between the information signal m (t) obtained…

A: Difference between modulated signal and demodulated signal- In modulation process original signal…

Q: 1- A modulation index of 0.5 would be same as a) 0.5 of Modulation Depth b) 1/2% of Modulation Depth…

A: Modulation index is given as, m = 0.5 Modulation depth is nothing but percentage of modulation…

Q: Determine the frequency of lower sideband and upper sideband for ar amplitude modulation where the…

A: given data fc = 8 kHz fm = 1 kHz

Q: Problem 2: Based on the figure below, which represents the spectrum of a DSB-LC signal, find the…

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Q: For an amplitude modulation scheme (DSB), what will be the power efficiency if the modulation index…

A: For double sideband amplitude modulation, the power efficiency depends on the value of the…

Q: second modulating tone having the same amplitude but a different frequency is added to the first at…

A: We need to find out modulation index

Q: Explain the process of multiplexing at the transmitter and demultiplexing at the receiver (draw the…

A:

Q: In FM modulation , the number of side bands produced depends on frequency deviation and modulating…

A: We need to check the given statement is true or false

Q: is the amount by which the frequency of an FM signal shifts to each side of carrier frequency. O a.…

A: 7)________ is the amount by which the frequency of an FM signal shifts to each side of carrier…

Q: According to the figure below determine the following 1. What is the name of this type of modulation…

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Q: In AM modulation the amplitude of the carrier is varied according to The amplitude of the RF signal…

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Q: In FM modulation; 1-Increasing the amplitude of the m(t) signal 2-Increasing the frequency of the…

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Q: We need to send 210,000 bits per second over a noiseless channel using 128- QAM. Determine the…

A: In this question we will find bandwidth for transmitting signals through noiseless channel....

Q: c) Draw the block diagram of delta modulation with a brief explanation of this modulation techniques

A: Delta modulation is a Differential Pulse Code modulation (DPCM) technique in which the difference…

Q: In the FM system, the audio frequency is 1 KHz and the audio voltage is 2v. The frequency deviation…

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Q: C ompare the amplitude modullation and frequency modulations. What are the advantages and…

A: Given :    In this question they are interested to know the difference between amplitude modulation…

Q: Outline the needs of signal modulation to transmit information in communication systems

A: We need to outline the need of modulation .

Q: What is the maximum carrier frequency to be used if the upper limit frequency that is available is…

A: First draw the amplitude modulation spectrum: This is the amplitude modulation spectrum which is…

Q: Select the correct statement regarding transmission systems. a. only unguided systems need to worry…

A: According to the question, we need to select the correct statement regarding transmission systems.

Q: Q2:If the carrier frequency 1000hz and reference voltage =10 V with modulation Index 0.4 and…

A: Brief description : For the above given amplitude modulation system we need to calculate output…

Q: Q24) This multiple choice question from DIGITAL COMMUNICATIONS course. just write for me the final…

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Q: Show that when the value of the modulation index is 1, the value of the efficiency of modulation…

A: The efficiency of an amplitude modulated system is the ratio of the signal power (Ps) to the total…

Q: A signal is sampled by using sampling frequency of 45000HZ which will produce 5000 Hz separation…

A: To analyse the given statement

Q: What is the amount of carrier swing necessary to produce an 80% modulation for the audio portion of…

A: Given, Modulation index is 0.8 . Carrier swing needs to be calculated for audio portion of tv band.…

Q: C- Put TRUE or FALSE for an, 1. PCM modulation is very complex technique compared to DM. 2. Envelope…

A: Find if given statements are true or false ?

Q: (a) What is the criterion for Carson's bandwidth calculațion?. b) List the advantagės modulation…

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Q: b) Double-Sideband Amplitude Modulation (or DSB-AM) is one of the simplest modulation schemes used…

A: i) We need to draw a DSB-AM waveform in the time domain, identifying any key features. ii) We need…

Q: [Q2] Answer the following: (a) Explain the effect of the value of u on the modulation quality of…

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Q: 6. The original electrical information signal to be transmitted is called * Modulating Signal…

A: 6. A brief about the options given:- Carrier:- A Carrier Signal is an electromagnetic signal with a…

Q: Determine the permissable range in maximum modulation index for : i) Commercial EM which has 30 Hz…

A: Modulation is process by which some properties of carrier signal is varied according to modulating…

Q: 5- Find the value of the FM modulation index when the input mes frequency equal to (5 kHz) and…

A: In this question we will find modulation index... Note:- as per our guidelines , I am supposed to…

Q: 3. When the modulating frequency in an FM system is 400 Hz and the modulation voltage is 2.4V, the…

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Q: If the carrier frequency 1000hz and reference voltage =10 V with modulation Index 0.4 and modulation…

A: We need to find out output voltage and output frequency

Q: Amplitude modulation is: * Change in amplitude of the carrier O according to modulating signal…

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Q: A signal is sampled by using sampling frequency of 70000HZ which will produce 8500 Hz separation…

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Q: 2-What is the maximum allowed frequency of the input information signal (modulator) in an AM system…

A: In this question,  We need to determine the maximum allowed frequency of the input signal?  We know…

Q: Compile a table comparing the various amplitude modulation schemes (conventional, DSB-SC, SSB-SC) in…

A: Comparison of amplitude modulation schemes in terms of their power efficiency, bandwidth…

Q: Answer the two following questions: A. A sinusoidally modulated AM waveform is shown below:…

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

Q: Determine the permissable range inmaximum modulation index for Commercial FM which has 30 to 15 KHz…

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Q: The output signal to noise ratio for a PCM system is minimum 40 dB. For sinusoidal full scale…

A: In the case of sinusoidal full-scale modulation, the output signal to quantization noise ratio for a…

Q: Discuss the effect of decreasing the amplitude of the carrier on the modulated output.

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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.