Amplitude modulation is obsolete but still in widespread use.
a. A baseband sine wave signal with frequency 4.0 kHz is modulated onto a carrier at 1.050 MHz using DSB-LC AM. What are the frequencies of the sidebands of the RF signal?
b. In part (a) above, what bandwidth is required to transmit the RF signal?
c. Write down two disadvantages of DSB-LC AM as a modulation for broadcasting sound radio signals.