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ECET 310 ASSIST Expect Success ecet310assistdotcom

ECET 310 ASSIST Expect Success ecet310assistdotcom

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ECET 310 ASSIST Expect Success ecet310assistdotcom

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  1. ECET 310 ASSIST Expect Success \ecet310assistdotcom FOR MORE CLASSES VISIT www.ecet310assist.com

  2. ECET 310 Entire Course (Devry) • ECET 310 Week 1 Homework 1_1 • ECET 310 Week 1 Homework 1_2 • ECET 310 Week 2 Assignment Homework 2_1 • ECET 310 Week 2 Assignment Homework 2_3 • ECET 310 Week 3 Assignment Homework 3_1 • ECET 310 Week 3 Assignment Homework 3_2 • ECET 310 Week 5 Assignment Homework 5_1 • ECET 310 Week 7 Homework 7_1

  3. ECET 310 Week 1 Homework 1_1 (Devry) • ECET 310 Week 1 Homework 1_1 • Computer Science - General Computer Science • 1. Add: • (a) 60 dB + 25 dB= • (b) 20 dBW + 5 dBW= • (c) 22 dB - 4 dB= • 2. Convert: • (a) 65 W into dB = • (b) 10 dB into watts • (c) – 5 dB into watts= . • (d) –30 dBm into dBrn = • (e) 15 dBrn into dBm = • 2. A three-stage amplifier is shown with power gains. Calculate total power :

  4. ECET 310 Week 1 Homework 1_2 (Devry) • ECET 310 Week 1 Homework 1_2 • Computer Science - General Computer Science • 1 . Four frequencies are applied at the input of a non-linear amplifier. Write down all of the frequency components at the output of the non-linear device. Write down only the first three harmonics. • 2. Find out the frequency components at the output of a resonant-tuned circuit tuned at 1200 KHz with a bandwidth of 15 KHz and connected at the output of a non-linear amplifier (mixer).

  5. ECET 310 Week 2 Assignment Homework 2_1 (Devry) • ECET 310 Week 2 Assignment Homework 2_1 • Computer Science - General Computer Science • 1. Assume that a receiver has a first amplifier stage with a 5KW input resistance, a gain of 300, an input audio signal of 20 mV, and an operating temperature of 27oC. When the amplifier is operating with a bandwidth first of 10 MHz, find • (a) therms input noise levels • (b) the audio output levels

  6. ECET 310 Week 2 Assignment Homework 2_2 (Devry) • 1. fCUTOFF = 130 KHz • T = 25  Sec • Draw the frequency spectrum of the output of the low pass filter. • 2. Draw the frequency spectrum of the output if the filter is: 14 marks • A high pass filter fC = 20 KHz

  7. ECET 310 Week 2 Assignment Homework 2_3 (Devry) • ECET 310 Week 2 Assignment Homework 2_3 • Computer Science - General Computer Science • 1. The bandwidth of a series resonant circuit is 400 Hz. • (a) If the resonant frequency is 4000 Hz, find Q. • (b) If Ω, what is the value of XL at resonance? • Find the inductance L and capacitance C of the circuit.= • 2. The frequency response curve for an RLC circuit is shown in the diagram. • (a) Determine Q and bandwidth for the frequency response curve shown. • (b) For μF, determine L and R for the resonant circuit.

  8. ECET 310 Week 3 Assignment Homework 3_1 (Devry) • ECET 310 Week 3 Assignment Homework 3_1 • Computer Science - General Computer Science • 1. An AM signal has an unmodulated carrier voltage VC = 10VP, a load resistance of RL = 10, and a modulation index of m = 1. Determine: • Modulation • (a) PC = Vc2/2/2(10)= • PSB =PT-PC/2= • (b) Total power in the AM signal • 2. Find the modulation index corresponding to the given trapezoidal pattern for the AM signal. • 3. You are tuned to an AM station at 1200 KHz. Write down the frequency components of the received AM signal. • 4. Draw an AM signal for the given conditions:

  9. ECET 310 Week 3 Assignment Homework 3_2 (Devry) • ECET 310 Week 3 Assignment Homework 3_2 • Computer Science - General Computer Science • 1. Draw the frequency spectrum at the output of the first balanced modulator. • 2. If the filter is a low pass filter, draw the frequency spectrum at the output of the filter and amplifier • 3. Draw the frequency spectrum at the output of the second balanced modulator. • 4. If the filter is a low pass filter, draw the frequency spectrum at the output of the filter and linear power amplifier. • 5. Find the value for the required Q for the first filter. • 6. Find the value for the required Q for the second filter.

  10. ECET 310 Week 4 Assignment Homework 4_1 (Devry) • 1. Define FM. • 2. What parameter of the intelligence signal causes frequency deviation of the carrier? • 3. What parameter of the intelligence signal causes or determines the rate of carrier frequency deviation? • 4. Define modulation index for FM. • 5. What is the reason that FM requires wider bandwidth as compared to AM? • 6. What characteristics of FM signal are shown by Bessel Function Solution of FM signal? • 7. If you are tuned to an FM station at a frequency of 100.1 MHz, show the bandwidth allocation for two adjacent stations.

  11. ECET 310 Week 5 Assignment Homework 5_1 (Devry) • ECET 310 Week 5 Assignment Homework 5_1 • Computer Science - General Computer Science • 1. Determine the Nyquist sample rate for a maximum analog input frequency of: • (a) 4 KHz • 10 KHz • 2. Determine the dynamic range for a 10-bit sign-magnitude PCM code. • 3. Determine the minimum number of bits required in a PCM code for a dynamic range of 80 dB. What is the coding efficiency? • 4. For a resolution of 0.04 V, determine the voltages for the following linear seven- bit sign magnitude PCM codes

  12. ECET 310 Week 6 Assignment Homework 6_1 (Devry) • 1. For a 64-PSK modulator with an input data rate(fb) equal to 36 Mbps and a carrier frequency of 100 MHz, determine the minimum double-sided Nyquist bandwidth(fN) and the baud. Sketch the output spectrum. • 2. Determine the bandwidth efficiency for the following modulators: • (a) QPSK = • (b) 64-QPSK = • (c) 128-QAM= • 3. A radio channel has a bandwidth of 10 KHz and a SNR of 15 dB. What is the maximum data rate that can be transmitted: • (a) Using any system? • (b) Using a code with 64 possible states? • 4. A modulator transmits symbols, each of which has 64 different possible states, 15,000 times per second. Calculate the baud rate and the bit rate.

  13. ECET 310 Week 7 Homework 7_1 (Devry) • ECET 310 Week 7 Homework 7_1 • Computer Science - General Computer Science • 1. For a QPSK system and the given parameters, determine • 2. Which system requires the highest Eb/No ratio for a probability of error of 10-7, four-level QAM or 8-PSK system? • 3. Determine the minimum bandwidth required to achieve a P(e) of 10-4 for a 16-PSK system operating at 25 Mbps with a carrier-to-noise ratio of 10 dB • 4. A PCM-TDM system multiplexes 32 voice channels each with a bandwidth of 0 Khz to 4 KHz. Each sample is encoded with an 8-bit PCM code. UPNRZ encoding is used. Determine:

  14. ECET 310 ASSIST Expect Success \ecet310assistdotcom FOR MORE CLASSES VISIT www.ecet310assist.com

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