Evolution of Early Cellular Telephone Systems Quiz
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Questions and Answers

What was the frequency separation between the forward and reverse channels in the US AMPS standard and European GSM cellular standard?

  • 45 MHz (correct)
  • 30 MHz
  • 60 MHz
  • 20 MHz
  • During the 1980s, why was it almost impossible to roam in Europe?

  • Europe had no pan-European digital mobile service at that time (correct)
  • Europe had a complex analog cellular system
  • Europe had strict roaming regulations
  • Europe had limited mobile phone coverage
  • What type of communication do cellular mobile communication systems provide?

  • Simplex communication
  • Full-duplex communication (correct)
  • Multiplex communication
  • Half-duplex communication
  • How many channels were used by the first modern cellular telephone systems in the early 1980s?

    <p>666 channels</p> Signup and view all the answers

    What was the basis of the US cellular system in the 1980s?

    <p>Analog cellular system</p> Signup and view all the answers

    What was the frequency separation between the forward and reverse channels in the US AMPS standard and European GSM cellular standard?

    <p>45 MHz</p> Signup and view all the answers

    In the early 1980s, what was the basis of the US cellular system?

    <p>Analog cellular system</p> Signup and view all the answers

    What type of communication do cellular mobile communication systems provide?

    <p>Full-duplex communication</p> Signup and view all the answers

    When did the single pan-European digital mobile service with advanced features and easy roaming start operating?

    <p>1991</p> Signup and view all the answers

    How many channels were used by the first modern cellular telephone systems in the early 1980s?

    <p>666 channels</p> Signup and view all the answers

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