What does DSC stand for?

DSC stands for Digital Selective Calling. This is a communication system used in maritime and other fields for the purpose of making distress calls and sending specific messages, such as alerts or requests for assistance. DSC uses digital signals to enable users to selectively call other users or groups without broadcasting to all stations simultaneously. This selective nature improves the efficiency of communications and reduces congestion on the radio channels.

In maritime contexts, DSC is particularly valuable as it enhances safety and coordination during emergencies. When a vessel sends out a DSC distress alert, it automatically includes critical information such as the vessel's identity and location. This allows rescue services to respond more quickly and effectively than if the message had to be relayed verbally. The use of DSC is part of the Global Maritime Distress and Safety System (GMDSS), which helps ensure safety at sea.

The other choices do not accurately describe the established term related to maritime communication systems.