What is the primary function of Emergency Locator Transmitters (ELTs)?

The primary function of Emergency Locator Transmitters, or ELTs, is to aid in aviation safety. These devices are designed to transmit distress signals in the event of an aircraft accident or emergency. When activated, an ELT emits a signal that can be detected by search and rescue operations, allowing them to locate the crashed aircraft quickly.

While some other options mention related safety functions, they do not capture the specific purpose of ELTs in aviation. For instance, maritime distress signals are typically sent using different systems, and personal safety tracking is not a primary role fulfilled by ELTs. Moreover, while satellite communication can be involved in the process of relay for the distress signals, it is not the main function of ELTs themselves. Thus, the correct understanding is that ELTs are fundamentally designed for aviation use, facilitating rapid identification and location in emergency situations.