🔍 Key Concepts

• VHF marine channel purposes (distress/safety, calling, intership, DSC, liaison) • Which channel is designated for distress, safety, and calling only and then shift to another working channel • Which channels are reserved for DSC (Digital Selective Calling) and for Coast Guard / government liaison

💭 Think About

• First, identify which choice is the international distress, safety, and calling channel and ask yourself: is it intended for routine conversations? • Next, decide which listed channel is reserved specifically for digital (non‑voice) distress/alerting, so it cannot be used for normal talking. • Then compare the remaining channels: which one is commonly assigned as a working intership channel for routine ship‑to‑ship voice traffic, rather than for calling or Coast Guard coordination?

✅ Before You Answer

• Confirm which channel is officially designated as distress, safety, and calling only and not for long routine traffic. • Verify which channel number is reserved for DSC-only (no voice) operations. • From the remaining options, select the one known as a working intership (ship-to-ship) voice channel, not primarily for Coast Guard or port operations.