Sketch a waveform that shows an Intended transmission in the physical layer and what that waveform could look like if some of the factors that can cause errors are introduced. Device an encoding scheme that is capable of encoding eight, three-bit transmissions using both Amplitude and frequency modulation for each of the eight encodings. Sketch a second waveform for the transmission of 010, 011,110 and 111, as encoded by you in the previous part of the problem.