Audio sine waves of 3 kHz frequency are used to amplitude modulate a carrier signal of 1.5 MHz . Whi

Question

Audio sine waves of 3 kHz frequency are used to amplitude modulate a carrier signal of 1.5 MHz . Which of the following statements are true?

Professor PC Thomas Classes · Answer

Carrier frequency $f_c = 1500 \mathrm{~kHz}$, audio $f_m = 3 \mathrm{~kHz}$. Sidebands are $1500 \pm 3 \mathrm{~kHz} = 1503 \mathrm{~kHz}$ and $1497 \mathrm{~kHz}$.