What channel is used for DSC calls in maritime communication?

The Digital Selective Calling (DSC) system uses Channel 70 for distress, safety, and calling messages in maritime communication. This channel is specifically designated for DSC, which allows for automatic and selective communication between vessels and shore stations, aiding in efficient distress situations or routine communications without the need for voice transmission.

Using this channel, vessels can send alerts that identify their location and nature of distress, facilitating quicker response times from rescue services. Unlike other channels, which may be used for open communication or voice traffic, Channel 70 is reserved solely for the DSC system, underscoring its critical role in maritime safety. Thus, it is essential for operators to be familiar with this channel in order to effectively utilize the safety features provided by DSC.