Question
What prosign is sent to indicate the end of a formal message when using CW?
Answer Options
- A) SK
- B) BK
- C) AR
- D) KN
Correct Answer: C
Explanation
Prosigns are two or more characters sent without spacing and are used as procedural signals in Continuous Wave (CW) operation. The prosign AR (typically sent as dit dah dit dah dit) is the internationally recognized signal used to indicate the end of a specific message or statement in a formal communication, such as a radiogram.
This prosign is used to signify that the content of the message is complete, and the operator is ready to receive the acknowledgment or next transmission. Other common prosigns include ‘SK’ (End of contact/Clear Station) and ‘BK’ (Break-in/Interrupt).
This topic was automatically created to facilitate community discussion about this exam question. Feel free to share study tips, memory tricks, or additional explanations!