What is the function of the EPIRB?

The function of the EPIRB, or Emergency Position Indicating Radio Beacon, is specifically to transmit a distress signal along with the location of a vessel in trouble to search-and-rescue authorities. When activated, an EPIRB sends out a distress signal that includes vital information, such as the vessel's position, typically obtained from GPS, making it easier for rescue teams to locate and assist those in distress.

This system is crucial for maritime safety as it ensures that, in an emergency situation, help can be dispatched promptly and accurately, ideally reducing the time it takes to reach those in need. The distress signals from EPIRBs are monitored by satellite systems, allowing for global coverage, which is essential for vessels operating in remote areas.

The other options describe functions that do not align with the primary role of an EPIRB. For instance, while communication with other vessels is important, it is not the main purpose of an EPIRB. Identifying a ship's port of call or recording navigational data are also not functions related to EPIRBs. Therefore, understanding the specific role of an EPIRB as a distress signal transmitter is critical for those involved in maritime operations.