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ECET 310 Squared Instruction Uophelp

ECET 310 Squared Instruction Uophelp

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ECET 310 Squared Instruction Uophelp

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  1. ECET 310 Course Tutorial For more course tutorials visit www.uophelp.com

  2. ECET 310 Course Tutorial ECET 310 Entire Course ECET 310 Week 1 Homework 1 • 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 • 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 

  3. ECET 310 Course Tutorial ECET 310 Week 1 Homework 1_2 (Devry) ECET 310 Week 1 Homework 3 • 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). • 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).

  4. ECET 310 Course Tutorial ECET 310 Week 2 Assignment Homework 2_1 (Devry) ECET 310 Week 2 Assignment Homework 2_2 (Devry) • 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   • the rms output noise levels • 1.   fCUTOFF = 130 KHz • Sec            T = 25 • 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

  5. ECET 310 Course Tutorial ECET 310 Week 2 Assignment Homework 2_3 (Devry) ECET 310 Week 3 Assignment Homework 1 • 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.= • 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.

  6. ECET 310 Course Tutorial ECET 310 Week 3 Assignment Homework 3 ECET 310 Week 4 Assignment Homework 4_1 (Devry) • 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. • 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?

  7. ECET 310 Course Tutorial ECET 310 Week 5 Assignment Homework 5 ECET 310 Week 6 Assignment Homework 6_1 (Devry) • 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? • 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=         

  8. ECET 310 Course Tutorial ECET 310 Week 7 Homework 7 . • 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: • .

  9. ECET 310Course Tutorial For more course tutorials visit www.uophelp.com

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