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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?

To determine the communication system's performance (C) Signup and view all the answers

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

Path loss (B) Signup and view all the answers

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

SNR = Pix - (losses) - (Gains) (D) Signup and view all the answers

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

Gains (D) Signup and view all the answers

What is the unit of measurement for the noise figure?

dB (B) Signup and view all the answers

What is the purpose of calculating the fading margin?

To account for signal loss due to fading (C) Signup and view all the answers

What is the formula for calculating the path loss?

Path loss = 10 log (distance) + noise (C) Signup and view all the answers

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