🔍 Key Concepts
• ARQ telex procedural signals used in maritime NBDP/telex-at-sea
• The specific meaning of +?, NNNN, KKKK, GA+, DIRTLX, and BRK+
• The normal order of signals when you: 1) pass the line to the other operator (manual over), 2) finish your message text, 3) finally end the terminal connection
💭 Think About
• First, match which ARQ code means "manual over/go ahead" in telex exchanges, then see which choice starts with that code.
• Next, identify which code is commonly used to mean "end of message text" in radiotelex procedures.
• Finally, determine which remaining code in that answer choice represents ending the connection to a land destination terminal, and check that the overall order is logical for a complete telex exchange.
✅ Before You Answer
• Verify from your radiotelex notes which signal is used for manual intervention / manual over between operators.
• Check which of NNNN or KKKK is associated with end of message text versus end of transmission/connection in telex procedures.
• Ensure the chosen sequence follows a natural progression: operator handover → message text completed → connection to land terminal closed, not the other way around.