Question 1: What do you mean by signal sources? What are the desirable characteristics of the signal? Give an overview of the different signal sources employed.
Question 2: Explain the following:
a) A Signal generator by using envelope feedback for amplitude modulation.
b) A heterodyne oscillator.
c) Explain the working of sweep frequency generator. Illustrate the sweeper errors?
Question 3: Why use of regulator power supply is needed for the signal generators?
Question 4: Why are buffer amplifiers employed in the signal generators?
Question 5: Why are temperature-compensating devices employed in the signal generators?
Question 6: With the help of block diagram describe the working of a function generator. Illustrate its applications.
Question 7: What do you mean by the term harmonics?
Question 8: What do you mean by the term frequency spectrum?
Question 9: Why is the signal distorted after the amplification?
Question 10: What do you mean by the term harmonic distortion?