IF MODULATION INDEX IS GREATER THAN 1Select one:a. THE BASEBAND SIGNAL IS NOT PRESERVED IN THE ENVELOPE OF THE AM SIGNALb. ALL OF THE ABOVEc. THE RECOVERED SIGNAL IS DISTORTEDd. IT IS CALLED OVER MODULATION
Question
IF MODULATION INDEX IS GREATER THAN 1Select one:a. THE BASEBAND SIGNAL IS NOT PRESERVED IN THE ENVELOPE OF THE AM SIGNALb. ALL OF THE ABOVEc. THE RECOVERED SIGNAL IS DISTORTEDd. IT IS CALLED OVER MODULATION
Solution
The correct answer is:
d. IT IS CALLED OVER MODULATION
Explanation:
Modulation index, also known as modulation depth, is used in AM (Amplitude Modulation) signals to determine the variation in the range of frequencies. It is the ratio of the peak deviation of the carrier signal to the peak value of the message signal.
When the modulation index is greater than 1, it is referred to as overmodulation. In overmodulation, the carrier wave
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