Chapter 15 & 16:. 2 Electromagnetic Signals Analog Signal –signal intensity varies in a smooth fashion over time. In other words, there are no breaks.
Electromagnetic Signals zFunction of time yAnalog (varies smoothly over time) yDigital (constant level over time, followed by a change to another level)
Chapter 15: Data Transmission Business Data Communications, 5e.
TEL205 Week 14 Stallings Chapter 15: Data Transmission.
