Digital Selective Calling (DSC)

Digital Selective Calling (DSC) is a communication system used in marine radio to send targeted distress signals or messages efficiently. It allows fixed or handheld radios to automatically identify a specific vessel or station by its unique number, called an MMSI (Maritime Mobile Service Identity). When a distress situation arises, DSC can instantly alert nearby ships and rescue services with precise location and vessel details, facilitating rapid assistance. Overall, DSC enhances safety and coordination at sea by enabling quick, accurate, and selective communication, reducing the need for voice calls and minimizing misunderstandings during emergencies.