One good way to learn more about avionics is to visit factories and test facilities where avionics technicians work as part of teams designing and testing new equipment. It is also possible to visit a large airfield's repair facilities where avionics workers design, build, inspect, maintain, and calibrate communications and control apparatus. You can also arrange to visit other types of electronics manufacturers.

Useful information about avionics training programs and career opportunities is available from the U.S. armed forces as well as from trade and technical schools and community colleges that offer such programs. These organizations are always pleased to answer inquiries from prospective students or service personnel.

Avionics technicians use apparatus such as circuit analyzers and oscilloscopes to test and replace such sophisticated equipment as transceivers and Doppler radar systems, as well as microphones, headsets, and other standard electronic communications apparatus. New equipment, once installed, must be tested and calibrated to prescribed specifications. Technicians also adjust the frequencies of radio sets and other communications equipment until the desired frequency has been achieved. Periodic maintenance checks and readjustments enable avionics technicians to keep equipment operating on proper frequencies. The technicians also complete and sign maintenance-and-overhaul documents recording the history of various equipment.

Avionics technicians involved in the design and testing of a new apparatus must take into account all operating conditions, determining weight limitations, resistance to physical shock, the atmospheric conditions the device will have to withstand, and other factors. For some sophisticated projects, technicians will have to design and make their tools first and then use them to construct and test new avionic components.

The range of equipment in the avionics field is so broad that technicians usually specialize in one area, such as radio equipment, radar, computerized guidance, or flight-control systems. New specialty areas are constantly opening up as innovations occur in avionics. The development of these new specialty areas requires technicians to keep informed by reading technical articles and books and by attending seminars and courses about the new developments, which are often sponsored by manufacturers.

Avionics technicians usually work as part of a team, especially if involved in research, testing, and development of new products. They are often required to keep notes and records of their work and to write detailed reports.