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Questions and Answers
What is the formula to calculate power in dBm?
What is the formula to calculate power in dBm?
dBm = 10 log10 Pm
Calculate the power of a signal with dBm = -30.
Calculate the power of a signal with dBm = -30.
3.37
What is distortion in signals?
What is distortion in signals?
Distortion means that the signal changes its form or shape.
What are the different types of noise mentioned?
What are the different types of noise mentioned?
What does SNR stand for and what does it measure?
What does SNR stand for and what does it measure?
What is attenuation?
What is attenuation?
In Example 3.31, if the power of a signal is 10 mW and the power of the noise is 1 μW, what are the values of SNR and SNRdB?
In Example 3.31, if the power of a signal is 10 mW and the power of the noise is 1 μW, what are the values of SNR and SNRdB?
How is attenuation measured?
How is attenuation measured?
If a signal's power is reduced to one-half, what is the attenuation in dB?
If a signal's power is reduced to one-half, what is the attenuation in dB?
When a signal's power is increased 10 times, what is the amplification in dB?
When a signal's power is increased 10 times, what is the amplification in dB?
What does SNR stand for?
What does SNR stand for?
How is SNR calculated?
How is SNR calculated?
What are the factors that data rate depends on in data communications?
What are the factors that data rate depends on in data communications?
How does the bit rate of a system change with an increase in the number of signal levels?
How does the bit rate of a system change with an increase in the number of signal levels?
What does the Nyquist Theorem state for a noiseless channel?
What does the Nyquist Theorem state for a noiseless channel?
What is the formula for calculating the capacity of a noiseless channel?
What is the formula for calculating the capacity of a noiseless channel?
What is the ideal ratio that we can never achieve in real life, related to signal and noise?
What is the ideal ratio that we can never achieve in real life, related to signal and noise?
In Example 3.34, with a bandwidth of 3000 Hz and two signal levels, what is the capacity in bps?
In Example 3.34, with a bandwidth of 3000 Hz and two signal levels, what is the capacity in bps?
