How does a coast station notify a ship that...

🔍 Key Concepts

• Maritime coast station calling procedures under GMDSS (Global Maritime Distress and Safety System) and traditional radiotelephone practice • Difference between calling/distress frequencies (like 2182 kHz / VHF Channel 16 – 156.800 MHz) and working frequencies • How stations with traffic for multiple ships make that fact known to all ships listening

💭 Think About

• Think about how a coast station could efficiently let many ships know that it has traffic for them without tying up a calling or distress frequency for a long time. • Ask yourself which option sounds like a general broadcast method versus a one‑to‑one call directed at a single ship. • Consider standard practice: do coast stations usually switch first to a vessel’s working frequency, or do they first do something on a commonly monitored frequency?

✅ Before You Answer

• Verify which frequencies are primarily for calling, distress, and safety versus routine working traffic. • Check which option describes a broadcast list that multiple ships could monitor at set intervals. • Confirm which procedure is consistent with ITU Radio Regulations / GMDSS practices for notifying ships of pending traffic.

How does a coast station notify a ship that it has a message for the ship?

By making a directed transmission on 2182 kHz or 156.800 MHz.

The coast station changes to the vessel’s known working frequency.

By establishing communications using the eight-digit maritime mobile service identification.

The coast station may transmit , at intervals , lists of call signs in alphabetical order for which they have traffic .

🔍 Key Concepts

💭 Think About

✅ Before You Answer