ATT 113 - Communications Systems

4.50 Credits, 6.00 Contact Hours
3.75 lecture periods 2.25 lab periods
Concepts, procedures, and regulatory requirements regarding various avionic systems used for communications. Includes basic communication principles; antenna and transmission lines; very high frequency, high frequency, and satellite communication radios; transponders; and emergency equipment.

Prerequisite(s): ATT 110 and ATT 111
Information: Students must either have an FAA Airframe license, or complete a knowledge interview with the Avionics faculty.

Course Learning Outcomes

Explain radio concepts, theory, and physics.
Explain aircraft autoflight, fuel quantity, and pressurization systems.
Demonstrate proficiency in radio, fuel quantity pressurization and autoflight system troubleshooting and maintenance.

Outline:

Communication Fundamentals
1. Modulation
2. Propagation
3. Squelch
Antenna
1. Characteristics based on application
2. Purpose of couplers
3. Bonding, gaskets/corrosion prevention
4. Identification
5. Aerodynamic forces
6. Radio frequency radiation exposure safety
Radio Systems
1. Intercom/PA
2. UHF/VHF
3. HF
4. SATCOM
5. Transponder
6. ELT/Emergency Equipment
Fuel Quantity Indication
1. Capacitance
2. Float type
3. Indication calibration
4. Test equipment use and precautions
5. Integration with other systems
6. Troubleshooting and maintenance best practices
Aircraft Pressurization
1. Safety considerations
2. Relief valve purpose
3. Regulatory requirements
4. Component location and function
5. Troubleshooting and maintenance best practices
Autoflight Systems
1. Autopilot
2. Auto Throttles
3. TCAS
4. System integration

Effective Term:
Fall 2024