The advantage of indirect FM modulation over direct FM modulation is:
A) in their ability to work at higher intelligence frequencies
B) in their increased frequency deviation
C) in their ability to work with small signal amplitudes
D) in their improved frequency stability

Question

Quizplus · Accepted Answer

Indirect FM modulation typically involves the use of a frequency synthesizer, which can provide better frequency stability compared to direct FM modulation methods. This is because the frequency of the carrier in indirect FM is controlled by a stable reference frequency, such as a crystal oscillator, leading to improved stability.

The Advantage of Indirect FM Modulation Over Direct FM Modulation