🔍 Key Concepts

• Ship station transmitter power limits under the ITU Radio Regulations and 47 CFR Part 80 for MF/HF bands (below 27.5 MHz) • Difference between radiotelegraphy (Morse/telegraph) and radiotelephony (voice) power limits • How power limits may change for passenger ships or by gross tonnage

💭 Think About

• First, recall the standard maximum power commonly allowed for ship MF/HF transmitters using radiotelegraphy. Which of the options matches that common standard value? • Consider whether special higher limits for large passenger ships change the general maximum for all ship stations, or are an exception only for a specific class of ships. • Ask yourself: Is the question asking for a general rule for any ship station, or a conditional value that only applies if certain tonnage or passenger requirements are met?

✅ Before You Answer

• Identify which choice states a conditional limit (e.g., depends on ship type/tonnage) versus a single fixed limit. • Verify in current regulations what the general MF/HF telegraphy power cap is for ship stations, not just for special classes of ships. • Make sure you are focusing on radiotelegraphy below 27500 kHz, not VHF or radiotelephony limits.