Question: Select the true statement regarding Amplitude Modulation (AM): a. An increase in message amplitude, A m , results in a higher AM Index, AM .

Select the true statement regarding Amplitude Modulation (AM):

a. An increase in message amplitude, Am, results in a higher AM Index, AM.

b. An increase in message amplitude, Am, results in an increase in occupied frequency bandwidth.

c. As the message frequency increases, the occupied frequency bandwidth decreases.

d. Over-modulation occurs when the carrier wave amplitude, Ac, is greater than the message wave amplitude, Am.

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