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SNR, BER, and Bandwidth II Starter Quiz
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Question 1
A 2 kHz channel has a signal to noise ratio of 24 dB. The change in the maximum chaanel capacity if the channel bandwidth is reduced to a quarter of the original value is
Question 2
The average information content in the English language, assuming that each of the 26 characters in the alphabet occurs with equal probability is_______bits /character.
Question 3
Consider an AWGN chance with 2kHz bandwidth and noise power spectral density 
= 10-10 W/Hz. The signal power required at the receiver is 0.4 mW. The capacity of the channel is:
= 10-10 W/Hz. The signal power required at the receiver is 0.4 mW. The capacity of the channel is:Question 4
The channel capacity of an infinite bandwidth channel is 54 kbps. If the signal power required at the receiver is 0.1 mW, the two sided noise spectral density is__________
10-9W/Hz
10-9W/Hz Question 5
A bipolar binary signal s(t) is given below . find the probability of error if the transmission rate of data is 104 b/s.
P(S1) = P(S2) = 1/2, η/2 = 10–9 w/Hz, A = 10 mV
Question 6
Consider a white noise of 2-sided spectral density 
applied to a simple RC low pass filter whose 3dB cut-off frequency is 4kHz.The mean squared value of cut-off noise output will be
applied to a simple RC low pass filter whose 3dB cut-off frequency is 4kHz.The mean squared value of cut-off noise output will be - 70 attempts
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Jun 9ESE & GATE EC
