🔍 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.