What components make up an AIS system?

An AIS (Automatic Identification System) comprises several key components, including a vessel's transponder, which broadcasts its position and other data; a GPS system for accurate location tracking; and communication equipment, typically VHF radio, for transmitting information to other vessels and shore stations. Additionally, shore-based AIS stations receive and process this data to enhance maritime situational awareness. The system may also include software for data analysis and display, aiding in navigation and monitoring maritime traffic.