What is the function of an Emergency Locator Transmitter (ELT)?

The function of an Emergency Locator Transmitter (ELT) is to transmit a distress signal for locating the aircraft. ELTs are crucial safety devices aboard aircraft that automatically activate upon impact or when they are submerged in water. These transmitters emit a continuous signal at specific frequencies that search and rescue operations can detect. This enables rescue teams to locate the aircraft quickly, significantly increasing the chances of survival for any occupants following an emergency situation. The distress signal sent by the ELT provides vital information about the aircraft’s location and assists in coordinated recovery efforts.

The other choices relate to functions that ELTs do not perform, such as improving communication, reducing noise pollution, or monitoring fuel levels, which are not within the scope of what an ELT is designed to do.