Explore BrainMass

Explore BrainMass

    Amplitude Modulation

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    Amplitude modulation is obsolete but still in widespread use.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.

    © BrainMass Inc. brainmass.com October 10, 2019, 3:35 am ad1c9bdddf

    Solution Preview

    a. The frequencies of the sidebands of the produced AM signal are 1.054kHz and 1.046kHz.

    b. The bandwidth of DSB-LC is twice the modulating signal. So the bandwidth is:
    B = 8kHz

    c. ...

    Solution Summary

    This posting contains the solution to the given problems.