🔍 Key Concepts

• Procedures for canceling a false Distress alert under GMDSS (Global Maritime Distress and Safety System) • The specific voice distress frequency paired with 8 MHz DSC for follow-up communications • Difference between MAYDAY, PAN PAN (Urgency), and ALL STATIONS calls and when they are used

💭 Think About

• After a false distress on 8 MHz, should your follow-up be on a distress/traffic frequency or a general working/urgency channel? • Think about whether you are correcting a Distress message mistake or reporting an Urgency situation—what priority level matches canceling a mistaken MAYDAY? • Which of the listed frequencies is recognized as the international 8 MHz radiotelephony distress frequency for voice communications?

✅ Before You Answer

• Identify which option uses the correct 8 MHz distress voice frequency paired with 8 MHz DSC for distress traffic. • Confirm that the call format for canceling a false distress starts with an ALL STATIONS or MAYDAY format appropriate to correcting a distress alert. • Verify whether GMDSS procedures require the cancellation message to be sent on the associated distress frequency rather than on all telex channels or on a non‑distress working frequency.