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BARC 2018 ECE: Communication Nuclear Quiz 4
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Question 1
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 Question 2
Consider minimum shift keying (MSK) also known as fast FSk with freq. spacing 2Fd between the state freq. Fb is the data rate.
Which one of the following correctly related Fb and Fd?
Which one of the following correctly related Fb and Fd?
Question 3
A sinusoid message signal m(+) is transmitted by binary PCM without compression. If the signal to quantization noise ratio is required to be at least 48dB, the main. No. of bits per sample will be
Question 4
A sampled signal that varies from –1 volt and +1 volt is quantized using ‘n’ bits. The signal is band limited to 5KHz. The minimum value of ‘n’ for the maximum quantization error to be less than 5mV is
Question 5
For the probability density function shown below find 
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