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ECET 310 Course Tutorial

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ECET 310 Entire Course (Devry)

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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
• ECET 310 Week 3 Assignment Homework 3_1
• ECET 310 Week 3 Assignment Homework 3_2

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ECET 310 Week 1 Homework 1_1 (Devry)

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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
• (a)  65 W  into  dB
• (b)  10 dB  into  watts 

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ECET 310 Week 1 Homework 1_2 (Devry)

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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 Week 1 Homework 1_2 (Devry)

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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 Week 2 Assignment Homework 2_2 (Devry)

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• 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

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ECET 310 Week 2 Assignment Homework 2_3 (Devry)

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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.
• (b)  If O, what is the value of XL at resonance?
• Find the inductance L and capacitance C of the
  circuit.

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ECET 310 Week 3 Assignment Homework 3_1 (Devry)

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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 Week 3 Assignment Homework 3_2 (Devry)

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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.
• 5. Find the value for the required Q for the
  first filter.

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ECET 310 Week 4 Assignment Homework 4_1 (Devry)

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• .         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.

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ECET 310 Week 5 Assignment Homework 5_1 (Devry)

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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 Week 5 DQ 2

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• Based on the Yew (2009) article, how does the
  information presented to decision makers affect
  the quality of their decisions?

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ECET 310 Week 6 Assignment Homework 6_1 (Devry)

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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                          
         
• (b)               64-QPSK                        
     

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ECET 310 Week 7 Homework 7_1 (Devry)

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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?

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ECET 310 Course Tutorial

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