What is the main function of an emergency locator transmitter (ELT)?

The main function of an emergency locator transmitter (ELT) is to transmit a distress signal after an accident. ELTs are designed to automatically activate and broadcast a signal upon impact or manually if needed. This signal is typically emitted on a specific frequency that is monitored by search and rescue teams and can help quickly locate an aircraft in the event of a crash or emergency situation. The timely transmission of these signals significantly enhances the chances of retrieving survivors and salvaging the aircraft.

Factors such as the ability to transmit distress signals make ELTs crucial safety devices in aviation. Unlike monitoring fuel levels, assisting in navigation, or communicating with air traffic control, the primary purpose of the ELT is focused solely on emergency situations, making it an essential component of aviation safety protocols.