Question 6
- Define the term modulation.
- Draw and label the block diagram of an AM radio transmitter.
Observation
- (a) Modulation
Defined as the process of changing some characteristics, i.e. amplitude, phase or
frequency of a carrier wave in accordance with the intensity of the information
signal.
OR
The process of superimposing low frequency signals on high frequency carriers.
- (b)Block diagram of an A.M. transmitter
Majority of the candidates that attempted this question gave the block diagrams of a receiver.