Chapter 1: Rules to Fly By. Chapter 2: Avionics Shop Requirements. Chapter 3: Avionics Decisions. Chapter 4: Avionics Installation and Repair. Chapter 5: Microphones, Headsets, Intercoms, and Speakers. Chapter 6: Audio Systems. Chapter 7: Antennas. Chapter 8: Communication Receivers/Transmitters. Chapter 9: Navigation Systems. Chapter 10: Marker Beacons. Chapter 11: Automatic Direction Finder (ADF). Chapter 12: Distance Measuring Equipment (DME). Chapter 13: LORAN Systems. Chapter 14: Global Positioning System (GPS). Chapter 15: Autopilot Systems. Chapter 16: Transponders and Collision Avoidance Systems. Chapter 17: Emergency Locator Transmitter (ELT). Chapter 18: Radar Systems. Chapter 19: Thunderstorm Detection Systems. Chapter 20: Compass. Chapter 21: Gyroscopic Instruments. Chapter 22: Radio (Radar) Altimeters.