🔍 Key Concepts

• Morse signaling procedures and how combined groups of letters and numbers are used • The typical meaning of the single-letter signal K in Morse communications • How adding a number (like 4) to a basic signal often modifies quantity, distance, or speed rather than direction

💭 Think About

• First recall what the single Morse letter K means in general radio or light communications, then consider whether that same idea is being adapted here • Think about whether the number 4 is more naturally used to describe direction, distance, or speed in standard maritime signaling practice • Ask yourself which option is a phrase of intention to communicate versus a measurement (miles/knots) or environmental information (wind direction)

✅ Before You Answer

• Verify whether K alone is commonly associated with "I wish to communicate" in Morse/ICS procedures • Check if there is any standard signal that uses a cardinal direction like south encoded by a letter-number combination such as K4 • Confirm whether number suffixes (like 4) in coded signals are more often tied to miles/knots or to modifying the type of communication you want to carry out