The Small Craft Advisory broadcast can be transmitted by which means only?

• A. radiotelephone
• B. NAVTEX only
• C. INMARSAT-C only
• D. HF SITOR only

Answer: (A)

The key idea is how urgent weather warnings meant for small vessels are delivered to mariners in the near term. A Small Craft Advisory is a time-sensitive, voice-style broadcast that mariners can hear and immediately understand over the air.

Radiotelephone (VHF voice) is ideal for this because it provides real-time, direct communication from a coast station to ships and boats in the area. It allows the message to be heard clearly on site and understood quickly, which is crucial for small craft operators who need to adjust plans right away.

Other systems—NAVTEX, INMARSAT-C, and HF SITOR—are primarily text-based or satellite/data services used for different kinds of forecasts, warnings, or longer-range communications. They aren’t the typical medium for delivering a time-critical, spoken advisory to nearby mariners, which is why radiotelephone is the correct means in this context.