A speech signal of 3 kHz is used to modulate a crrier signal of frequency ! MHz, using amplitude modulation. What will be the frequencies of side bands ?
Answer & explanation
Correct answer: option 1
\(\nu\) = 1 MHz ; \(\Delta \nu\) = 3 kHz = 0.003 MHz
Side bands = \(\nu\) \(\pm \) \(\Delta \nu\) = 1.003 MHz, 0.997 MHz