Q.1: a) A carrier wave of 500 W is subjected to 100% amplitude modulation index. Dete: 1- Power in sidebands: (USB) and (LSB). 2- Total power. b) Derive with aide of figure the noise in cascaded system.

Q: 5. How does the bandwidth change in relation to increasing signal amplitude ? 6. What are the types…

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Q: Hi! Please answer this thanks! 1. Define AM and draw its spectrum? 2. Give the significance of…

A: When characteristic of one signal varies with another signal is called modulation.Modulation reduces…

Q: There exist several methods to perform AM demodulation, consider a requirement where we intend to…

A: Synchronous AM demodulation provides some significant improvements over the simple diode detector.…

Q: b) Show that the distance between two signal points of BPSK scheme is 2/E, .

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Q: . Calculate the minimum bilateral Nyquist bandwidth, FN, and baud, for a modulator 8-PSK with 20…

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Q: Consider the amplitude modulated (AM) signal A, cos wt + 2 cos w„t cosw̟t. For dernodulating the…

A: Write the given AM signal, and rearrange it. A=Accosωct+2cosωmtcosωct=Accosωct1+2Accosωmt

Q: For an FM modulator with sensitivity K;=5kHz/V and modulating signal vm(t) = 8sin(2r2000t), (a)…

A: Given, a FM modulator with Deviation sensitivity, K1 = 5 kHz/V Modulating signal, Vm(t) = 8sin…

Q: 1. Describe the operation theory of FM modulation.

A: Brief description : Note : According to the guidelines of the company if the questions are of…

Q: (c) If the carrier in part (b) has a peak-to-peak voltage of 12V and the modulating signal has a…

A: We need to find out the voltage for given amplitude modulation .

Q: 7) If the highest frequency of the baseband signal is 6 kHz, what is bandwidth of the DSBAM and SSB…

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Q: A. If the probability of error of BPSK is 0.85 then Pe of BFSK is?   B. What happens to the radio…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: 3. What is the maximum allowed information signal frequency that will be accepted be accepted by an…

A: Given sampling frequency fs = 24Khz  Find maximum allowable signal frequency without producing…

Q: 6. Let, the bandwidth of the message signal is 500 Hz. What should be the value of we to avoid…

A: In the question,  Message signal frequency fm = 500Hz. What is carrier frequency to avoid overlap?…

Q: In a binary pulse code modulation system, if the frequency of the baseband signal is 12.5 kHz, then…

A: The given problem is of binary pulse code modulation, firstly the codeword length needs to be…

Q: The output signal from a conventional AM modulator is ?(?) = 4 cos(3600??) + 24 cos(4000??) + 4…

A: The expression of the output signal from a conventional AM modulator is given as

Q: 17,4 How many reference planes are needed for a mixed-signal PCB? a

A: For a mixed-signal PCB, the system would have a single reference plane. If the system will have more…

Q: what are the advantages and disadvantagesof large carrier and suppressed carrier modulation?

A: Advantage of large carrier modulation: The advantage of large carrier signal modulation is that it…

Q: Q/ (A) - A binary PAM wave is to be transmitted over a baseband channel with an absolute maximum…

A: Given for binary PAM Bandwidth BW=75kHz bit rate TB=10 usec

Q: The binary sequence 11100101 is applied to an ASK modulator. The bit duration is 1 the sinusoidal…

A: For ASK ,

Q: please find enclosed spot of our general expression in our frequency modulation. And in this…

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Q: d) Draw a fully labelled block diagram of a direct FM VCO modulator. Briefly discuss its operation…

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Q: 1) For an FM modulator with sensitivity K;=4kHz/V and modulating signal vm(t) = 10sin(2r2000t), (a)…

A: Given : Sensitivity : K1= 4 kHz/V , Vm(t)=10 sin(2π2000t) Comparing to the standard equation…

Q: 1- Explain the principle of direct method generation of FM signal.

A: The explanation is as follows.

Q: Sketch the transfer curve for an n-channe depletion type MOSFET with IDSS=10 mA and Vp = -8 V

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Q: For an AM envelope with a maximum peak voltage of 52 V and a minimum peak to peak voltage of 24 V,…

A: For an AM envelope with a maximum peak voltage of 52 V and a minimum peak to peak voltage of 24 V,…

Q: Show that the distance between two signal points of BPSK scheme is 2√??

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Q: Explain through equations what happen if there is a phase error θc between the  transmitted QPSK…

A: According to the question, we need to explain through equations what happens if there is a phase…

Q: Describe clearly the working of Super heterodyne receiver with a neat sketch and also write down the…

A: WORKING OF SUPER HETERODYNE RECEIVER: The Super heterodyne receiver  is utilized in many types of…

Q: For a user signal with maximum frequency 20KHz: What must be the proportionality constant Kf and…

A: Given :  Note : It is the kind notice that according to the guidelines of the company we supposed…

Q: Regarding phase modulation (PM), an increase in the PM index, µ, results in an increase in the…

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Q: (i) What do you mean by baseband signal?

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

Q: What is the purpose of balanced ring modulator in single-sideband transmission? Describe its…

A: Balanced ring modulator: Ring modulation is a signal processing function, and execution of frequency…

Q: Exxplain the rellation between BER and E/N_0, where E is the energy per bit, N_0 is the noise…

A: In the digital communication, the normalized signal to noise ratio per bit is given as:

Q: 2. The SNRo of a receiver is determined to be 35.937dB. Determine the SNRi in dB, if the modulation…

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Q: Design a 3rd order HPF without any kind of attenuation of ur original signal?

A: To achieve the high-order high pass filter, it has to cascade the appropriate high-pass filter. To…

Q: What is the minimum bandwidth of the PSK modulated signal? and then compare the bit-error…

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Q: Advantage of using Dynamic channel assignment is

A: The solution is provided in the following section.

Q: Does a PCM signal have a smaller bandwidth? Why or Why not?

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Q: Consider a low-pass signal with a bandwidth of 3 kHz. A linear delta modulation system, with step…

A: Maximum allowable frequency, fm=3 kHzNyquist sampling rate=2fm…

Q: Discuss a modulation technique which requires less bandwidth as compared to that of DSBSC, less…

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Q: Q2The modulating x(t)=2cos2000nt+cos4000nt is applied to AM modulator of carrier=2cos106 t. Write…

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Q: 1. What is the B.W of AM? 2. Give the significance of modulation index? 3. What is mean by over…

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Q: Q\ What is the VSB modulation? and why it used? and how it can be generated?

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Q: Q2The modulating x(t)=2cos2000rnt+cos4000nt is applied to AM modulator of carrier=2cos106 t. Write…

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Q: What is the reason why FM modulation is preferred over PM, do you write down advantages and…

A: Frequency Modulation (FM) - The frequency modulation is a technique in which the carrier's frequency…

Q: For an FM modulator with an unmodulated carrier amplitude vc= 20v, a modulation index m=1, and a…

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Q: Drive from the first principles the final output equation of the WBFM. What are the differences…

A: According to the question we have to drive from the first principles the final output equation of…

Q: An analog baseband signal of maximum frequency component of 4 KHz is transmitted using a pcm system…

A: The transmission bandwidth of a pulse code modulated system primarily depends on two parameters:1.…

Q: Briefly discuss how the filter method works in generating SSB signal.

A: According to the question, we need to discuss the filter method of the SSB generator.

Thermistors

A thermistor is a special type of resistor whose resistance is more temperature-dependent than standard resistors.  The resistance of the thermistor decreases with increasing temperature. This is the basic principle of thermistors. This allows the thermistor circuit to detect very small temperature changes that cannot be observed with the Resistance temperature detectors (RTDs) or the thermocouples. Since the resistance of a thermistor is temperature dependent, it can be connected to an electrical circuit to measure body temperature. This high sensitivity to temperature changes makes thermistors very useful for accurately controlling and calibrating temperature measurements. In general, resistance increases with increasing temperature in most metals, but thermistors react negatively.