What should the watch officer do if they detect an unacknowledged DSC Distress alert?

If a watch officer detects an unacknowledged DSC Distress alert, monitoring for voice transmission on the appropriate frequency is the correct course of action. The watch officer should actively listen for any voice messages that may follow the distress alert, as typically, after a DSC Distress alert is transmitted, additional communication may be provided. This communication, which follows standard maritime protocols, may include information about the nature of the distress and the vessel in trouble, which is vital for effective response.

The rationale behind this approach lies in the understanding that maritime distress communications often involve multiple layers of notification. Following the initial DSC alert, it is essential to listen for any further instructions or transmissions from the distressed vessel or other nearby stations that could assist in determining how best to provide assistance.

While notifying a Coast Station or relaying the alert may seem relevant, these actions typically take place following the monitoring phase if no response or further information is received from the distressed party. The emphasis on monitoring first allows for a clear understanding of the situation and assessment of the next steps needed to assist those in distress.