Discussion 1. Explain the difference between narrowband and wideband frequency modulation. 2. Briefly explain the process of indirect FM generation using a phase modulator. The maximum frequency deviation is the carrier swing divided by 2. 5 Communication Systems - Lab Experiment 6 3. Give a detailed explanation of the role of the phase detector in FM demodulation (See Ref. [1]). 4. Determine and plot the sensitivity and the amount of nonlinearity at each point of the VCO characteristics curve. What is the VCO sensitivity and nonlinearity at the operating frequency for this experiment