Part A [20 Marks] Consider an ASK (Amplitude Shift Keying) modulation system. The modulating signal is digital bit stream with a bitrate of 2kbps. The modulating signal amplitude is 0 to

5 Volts. The carrier signal is 12 Vpp signal and has a frequency of 800kHz. ● ● ● Sketch the ASK signal indicating signal levels. Calculate the modulation index. Sketch the frequency spectrum. Determine the bandwidth of the ASK signal.