0 0 4. For the block diagram shown below: a) Draw the frequency spectrum of the output signal of: a.2) BM3 2 3 1 4 a.1) BM1 b) Determine the frequency range of 3kHz 3kHz 3kHz 3kHz b.1) information 3 at the output of Adder 3 b.2) information 4 at the output of BPF BM1 6kHz Oscr. BM2 Adder 1 LSB Pass Filter 1 LSB Pass Filter 2 Adder 2 BM3 100kHz Oscr. BM4 BPF 1 100k-106kHz BPF 2 94k-100kHz a.3) Adder 1 Adder 3 a.4) Adder 3 Balanced mixer 3 3MHz Oscr. BPF 3 3M-3.2MHz

A radio signal can carry information in the form of sound or image for broadcasting or communication. For it to be sent to a greater distance, the signal must be changed or modulated in some way. One of the easiest way is to change the amplitude of the s…