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24-25 EE1030 Communication Engineering
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Which of the following choices best describes the function of the filter given below?
In a Frequency division Multiplexing system having four frequency bands, if the frequency bands are of 200 kHz bandwidth separated by 15kHz guard bands, calculate the minimum capacity of the communication channel.
A message signal with a peak voltage of 40 mV at a frequency of 600 Hz is applied to an FM generator circuit. If the circuit has frequency sensitivity, = 800 Hz /20mV, calculate the peak frequency deviation.
Calculate the transfer function gain, | =20Hz, given
[Note: H(f) = 1 / 1+j(f / B) , B = 1 / 2πRC ]
Why is it important to know the peak deviation constant,
What is the significance of the frequency sensitivity factor,
What is the method with which a baseband signal can be transported to RF frequencies?
In envelope detection of an amplitude-modulated signal, what is the danger of making the lowpass filters’ cutoff frequency too high a value?
Consider a signal that has its highest frequency component at 8,000 Hz. What is the minimum rate that the signal should be sampled by?
How is normalised frequency defined?