problem 1: We measure the performance of a telephone line (4 kHz ok bandwidth). If the signal is 10 volts, the noise is 5 mill volts. Then determine the maximum data rate supported by this telephone line?
problem 2: Illustrate the difference between encoding and modulating?
problem 3: Illustrate the term digital-to-digital encoding?
problem 4: What do you mean by digital-to-analog and analog-to-digital conversion?
problem 5: What do you mean by analog-to-analog conversion?
problem 6: Why is frequency modulation superior to the amplitude modulation?
problem 7: What is the benefit of QAM over the ASK or PSK?
problem 8: What do you mean by DC component?
problem 9: Why is synchronization a difficulty in the data communication?
problem 10: How does NRZ-L distinct from NRZ-I?