What is the main function of a DSC radio in maritime communication?

The main function of a DSC (Digital Selective Calling) radio in maritime communication is to facilitate automated distress signaling. DSC technology is designed to send a distress alert that includes the vessel's identification, position, and the nature of the emergency with just a push of a button. This automated system allows for quicker responses from nearby vessels and rescue authorities, improving safety at sea.

Additionally, DSC radios can send routine communications and acknowledgments, but their primary and most critical feature is the ability to issue distress calls. This capability is crucial for ensuring that help can be reliably summoned in emergency situations, which is a vital aspect of maritime safety protocol.