Cellular Telephony: Signal-to-Noise Ratio
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Questions and Answers

What is the term for the reduction in signal strength due to the environment?

  • Gains loss
  • Signal loss
  • Path loss (correct)
  • Fading loss

    • What is the formula for calculating the received signal power (Prx)?

  • Prx = Pix + (losses) - (Gains)
  • Prx = Pix - (Gains) / (losses)
  • Prx = Pix - (losses) + (Gains) (correct)
  • Prx = Pix / (losses) + (Gains)

    • What is the unit of measurement for the received signal power (Prx)?

  • Volts
  • dB
  • Watts
  • dBm (correct)

    • What is the purpose of calculating the link budget?

    <p>To determine the communication system's performance</p> Signup and view all the answers

    What is the factor that affects the signal strength due to the surrounding environment?

    <p>Path loss</p> Signup and view all the answers

    What is the formula for calculating the signal-to-noise ratio (SNR)?

    <p>SNR = Pix - (losses) - (Gains)</p> Signup and view all the answers

    What is the term for the increase in signal strength due to the use of amplifiers?

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

    What is the unit of measurement for the noise figure?

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

    What is the purpose of calculating the fading margin?

    <p>To account for signal loss due to fading</p> Signup and view all the answers

    What is the formula for calculating the path loss?

    <p>Path loss = 10 log (distance) + noise</p> Signup and view all the answers

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