Question
What does the Q signal “QRL?” mean?
Answer Options
- A) “Will you keep the frequency clear?”
- B) “Are you operating full break-in?” or “Can you operate full break-in?”
- C) “Are you listening only for a specific station?”
- D) “Are you busy?” or “Is this frequency in use?”
Correct Answer: D
Explanation
The Q signal ‘QRL’ is one of the most important procedural signals in CW operation, and it is used to check if a frequency is clear before transmitting. It stands for ‘Are you busy?’ or ‘Is this frequency in use?’ The question form, ‘QRL?’, is sent by a station that intends to transmit on the frequency.
If the frequency is clear, there will be no response. If the frequency is in use, the station or stations using it should respond with ‘R’ (Received) or ‘QRL’ followed by an indication that the frequency is in use. This practice is mandatory good operating procedure to ensure a clear channel is selected.
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