03: The output voltage of a transmitter is given by the following envelope wave form. This voltage is fed to a load (RL= 12). What is the name of the modulator that can be used to generate DSB-AM, and draw the block diagram of this modulator? Then find: (a) The carrier frequency and the message frequency. (b) The double side band frequencies (USB and LSB). (c) The modulation index. (d) The carrier power and power in sidebands. (e) The total power. (f) Write the modulated wave equation at the output of the transmitter. Amplitude 20 volts 40 volts 20 ji sec.