3.1 Electromagnetic Waves3.2 Describing Signal Voltage and Power3.3 Information, Modulation, and Multiplexing3.4 Backscatter Radio Links3.5 Link Budgets3.6 Effect of Antenna Gain and Polarization on Range3.7 Adding a Battery3.8 Propagation in the Real World3.9 Capsule Summary: Chapter 3Further ReadingExercises