What function does a personal locator beacon (PLB) serve?

A personal locator beacon (PLB) serves the crucial function of transmitting a distress signal to rescue authorities. When activated, a PLB emits a specific radio signal that communicates the user's location, enabling search and rescue teams to quickly locate and assist individuals in emergency situations. This device is designed to be compact and lightweight, making it an essential tool for maritime safety, especially in remote or challenging environments where immediate assistance is critical.

In contrast, while providing weather updates, locating lost items, or signaling for medical assistance might be useful functions in various contexts, they are not the primary purpose of a PLB. The specific design and function of a PLB focus on aiding in distress situations, emphasizing its role as a vital safety device for individuals at sea or in remote areas.