How many frequencies are available under GMDSS for DSC Distress-related calls?

Under the Global Maritime Distress and Safety System (GMDSS), there are a total of seven frequencies designated specifically for Digital Selective Calling (DSC) distress-related calls. This includes several VHF and HF frequencies that are recognized internationally for distress communications.

The use of these frequencies ensures that vessels in distress can effectively broadcast their urgent needs and reach rescuers. These frequencies are set aside for emergency use, making them distinct from other communication channels that are used for routine maritime traffic.

Understanding the exact number of these distress frequencies is crucial for mariners as it ensures they comply with legal requirements and are well-equipped to seek assistance in emergencies.