A

Decomposing periodic analog signal into two sine waves having a phase shift equivalent to 1/6 and 1/8 cycle with respect to time 0. These sine waves have 8 and 12 cycles for a duration of one second. Both have a maximum amplitude of 15 volts. What are the phases in degrees and radians and represent both signals in time and frequency domains plot?

B

What is the transmission impairment? List the common causes of impairment and explain each?

Composite analog signal 40 20 Amplitude (v) mmmmmmm -20 -40 0 0.2 0.4 0.6 0.8 1.2 1.4 1.6 1.8 2 1 Time (s) Composite analog signal 40 20 Amplitude (v) mmmmmmm -20 -40 0 0.2 0.4 0.6 0.8 1.2 1.4 1.6 1.8 2 1 Time (s)