🔍 Key Concepts

• Meaning of the radiotelephone signal CQ in maritime and general radio communications • What WSV is likely to represent in a maritime call (think: ship/coast/working station identifiers) • Common use of the abbreviation TFC on marine radio (hint: often tied to message type or priority)

💭 Think About

• Ask yourself: when an operator starts with 'CQ CQ', who are they usually trying to reach? One specific station, or more than one? • Consider each group separately: what does CQ mean, what could WSV be, and what does TFC usually stand for in marine communications? • Think about whether each part of the signal matches only one choice, or if combining them could justify selecting more than one answer at the same time.

✅ Before You Answer

• Be clear on the standard definition of CQ in radio practice before you choose • Confirm whether WSV by itself is a general call sign or a specific station identifier • Verify the usual meaning of TFC in marine communications and whether it alone could justify options B or D.