ECET 310 Inspiring Minds/newtonhelp.com

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ECET 310 Inspiring Minds/newtonhelp.com
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ECET 310 Inspiring Minds/newtonhelp.com

• ECET 310 Entire Course
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• 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

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ECET 310 Inspiring Minds/newtonhelp.com

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• ECET 310 Week 1 Homework 1_1
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• Computer Science - General Computer Science
• 1.  Add
• (a)  60 dB    25 dB
• (b)  20 dBW   5 dBW
• (c)  22 dB  -  4 dB 
• 2.  Convert

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ECET 310 Inspiring Minds/newtonhelp.com

• ECET 310 Week 1 Homework 1_2
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• 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).

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ECET 310 Inspiring Minds/newtonhelp.com

• ECET 310 Week 2 Assignment Homework 2_1
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• 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

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ECET 310 Inspiring Minds/newtonhelp.com

• ECET 310 Week 2 Assignment Homework 2_2
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• 1.   fCUTOFF 130 KHz
• Sec?            T 25
•  
• Draw the frequency spectrum of the output of the
  low pass filter.

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ECET 310 Inspiring Minds/newtonhelp.com

• ECET 310 Week 2 Assignment Homework 2_3
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• 1.  The bandwidth of a series resonant circuit is
  400 Hz.
• (a)  If the resonant frequency is 4000 Hz, find Q.

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ECET 310 Inspiring Minds/newtonhelp.com

• ECET 310 Week 3 Assignment Homework 3_1
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• 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.

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ECET 310 Inspiring Minds/newtonhelp.com

• ECET 310 Week 3 Assignment Homework 3_2
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• 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.

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ECET 310 Inspiring Minds/newtonhelp.com

• ECET 310 Week 4 Assignment Homework 4_1
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• 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.
• 8.         What is the required BW to transmit an
  FM signal if the maximum deviation is 60 KHz and
  intelligence frequency is 15 KHz?

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ECET 310 Inspiring Minds/newtonhelp.com

• ECET 310 Week 5 Assignment Homework 5_1
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• 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?

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ECET 310 Inspiring Minds/newtonhelp.com

• ECET 310 Week 6 Assignment Homework 6_1
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• 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                          
         

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ECET 310 Inspiring Minds/newtonhelp.com

• ECET 310 Week 7 Homework 7_1
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• 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

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ECET 310 Inspiring Minds/newtonhelp.com