ECET 310 Read, Lead, Succeed/uophelpdotcom

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ECET 310 Read, Lead, Succeed/uophelpdotcom

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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
• ECET 310 Week 5 Assignment Homework 5_1
• ECET 310 Week 7 Homework 7_1
•  

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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 
• (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 gain in decibels,
  and as a number 
• 3. (a)  Determine the overall power gain.  
• b) Find the output power if   Pin    15 mW
• 4. If Pin    -20 dBm, determine the output power
  in dBm and watts
• 5. Determine

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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_1 (Devry)

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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
• 2.  We have an amplifier with a 1 MHz bandwidth
  and a 20 mV input signal. The input mV, output
  mV, and output mV.
• Find
• (a)  SNR at the input
• (b)  SNR at the output  
• Noise figure
• 3. An FM receiver has at the input and at the
  output.
• Calculate the receivers noise figure in dBs.
•  

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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.
•  
• 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.
• Determine the applied voltage.
•  
•  

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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.
• 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
• (a)

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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.
• 6. Find the value for the required Q for the
  second 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.
• 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 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?
• 4. For a resolution of 0.04 V, determine the
  voltages for the following linear seven-  bit
  sign magnitude PCM codes  
• 5. Determine the resolution and quantization
  error for an eight-bit linear sign  magnitude PCM
  code for a maximum decoded voltage of 1.27 V

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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                        
     
• (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.
• 5.    What is the shannon limit for a standard
  telephone circuit with an SNR of 30 dB
                  and a bandwidth of 3.3 KHz?
• 6.   What is the maximum data rate possible for a
  standard telephone circuit with an
•       SNR of 1023 and BW of 3 KHz using 8 bits
  per symbol?

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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?
• 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
• 5. Consider a PCM-TDM system in which 24 signals
  are to be processed. Each signal has a baseband
  bandwidth of 3 KHz. The sampling rate has to be
  33.3 higher than the theoretical minimum, and 8
  bits are to be used. Conventional NRZ-L encoding
  format is used.  An extra bit is added to each
  frame for sync.  Determine

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ECET 310 Read, Lead, Succeed/uophelpdotcom

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