Fergana branch of Tashkent University of Information Technologies


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Disadvantages of WiMAX :

Disadvantages of WiMAX:

  • Very power intensive technology and also have to require strong electrical support
  • Weather conditions like rain could cause interference
  • WiMAX is very power consuming
  • Multiple frequencies are used for WiMax deployment
  • WiMAX can offer up to 70 Mbps in the range of 70 miles with the moving station. So in practice, the situation is very different. So it is true that only in ideal circumstances with only one recipient
  • If there are many users in one sector, then they will have lower speed

TESTS

  • 1 ASK,PSK,FSK, and QAM are examples fo __________ conversion
  • A. Digital -to –digital
  • B. Digital – to –analog
  • C.analog-to-analog
  • D.analog-to -analog
  • 2 AM and FM are examples fo ____conversion
  • A. Digital -to –digital
  • B. Digital – to –analog
  • C.analog-to-analog
  • D.analog-to -analog

TESTS

  • 3.in QAM,both ____ of a carreirer frequency are varied
  • A.freaquency and amplitude
  • B.phase and frequency
  • C.amplitude and phase
  • D.none of the above
  • 4 if the baud rate is 400 for qpsk signal ,bit rate is____bps
  • A.100
  • B.400
  • C.800
  • D.1600

TESTS

    • 5. if the bit rate for an ASK signal is 1200 bps,the baud rate
    • Is _____
    • A.300
    • B.400
    • C.600
    • D.1200

Browse videos by topic

  • What is Modulation ? Why Modulation is Required ? Types of Modulation Explained
  • https://www.youtube.com/watch?v=mHvV_Tv8HDQ&ab_channel=ALLABOUTELECTRONICS
  • Introduction to Analog and Digital Communication | The Basic Block Diagram of Communication System
  • https://www.youtube.com/watch?v=qhjj6WG7Rgc&list=PLwjK_iyK4LLArUHRm3SvPLT0XWlVhpl4h&ab_channel=ALLABOUTELECTRONICS (playlist 31 video)
  • ASK FSK PSK Modulation / Digital Modulation Techniques / Amplitude, Frequency and Phase Shift Keying
  • https://www.youtube.com/watch?v=01zv0thaAUw&list=PLDp9Jik5WjRs5ismlsqP_Q3JNlWOe-2an&ab_channel=EngineeringMadeEasy
  • Module 4: Digital Modulation
  • https://www.youtube.com/watch?v=CCOX2tvgM80&ab_channel=ProfessorDavidS.Ricketts

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