Others

• What is impulse response?
• Explain the advantages and disadvantages of FIR filters compared to IIR counterparts.
• What is CMRR?
• Explain half-duplex and full-duplex communication?
• Which range of signals is used for terrestrial transmission?
• Why is there need for modulation?
• Which type of modulation is used in TV transmission?
• Why we use vestigial side band (VSB-C3F) transmission for picture?
• When transmitting digital signals is it necessary to transmit some harmonics in addition to fundamental frequency?
• For asynchronous transmission, is it necessary to supply some synchronizing pulses additionally or to supply or to supply start and stop bit?
• BPFSK is more efficient than BFSK in presence of noise. Why?
• What is meant by pre-emphasis and de-emphasis?
• Explain 3 dB cutoff frequency? Why is it 3 dB, not 1 dB?
• Explain ASCII, EBCDIC?