A crewmember has accidentally transmitted a...

A crewmember has accidentally transmitted a...

Question 1 of 27070PR35mflldkleMq6ikt4u

A crewmember has accidentally transmitted a VHF-DSC Distress alert. What action should be taken?

Question 1 of 27070

Q

A crewmember has accidentally transmitted a VHF-DSC Distress alert. What action should be taken?

🔍 Key Concepts

• VHF-DSC distress procedures under GMDSS (Global Maritime Distress and Safety System) • The difference between Channel 16 (voice) and Channel 70 (DSC-only) • Requirements to cancel false or inadvertent distress alerts

💭 Think About

• After an accidental DSC distress, what are the two main steps the operator must take: first with the equipment, then with other stations listening? • Which channel is used for voice distress and safety traffic, and which channel is data-only for DSC and not used for spoken messages? • Why is it important to inform other stations that the alert was false, and how will they most reliably hear that information?

✅ Before You Answer

• Confirm which channel (Ch-16 vs Ch-70) is intended for voice communication. • Verify that DSC distress alerts will repeat automatically unless stopped at the source. • Check standard GMDSS guidance on how to cancel false distress alerts (what wording, and on which voice channel).