Aha Trivia Stuff Everyone Should Know
Aha Trivia: Stuff Everyone Should Know · ahatrivia.com/mb-signs-signals-4fde834d2b98

What does the Morse prosign SK tell the other operator?

End of contact.

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  1. Send slower
  2. End of contact ✔
  3. Start of message

Why: SK is a prosign meaning end of contact, used to close a Morse transmission.

Huh, didn't know that: SK is a prosign meaning end of contact, used to close a Morse transmission.

The dad joke
SK means we can sk-ip the goodbye.
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References

Answer: End of contact. SK is a prosign meaning end of contact, used to close a Morse transmission.

  1. Morse code en.wikipedia.org/wiki/Morse_code
    the prosign SK ("end of contact")
    Checked 2026-11-07.

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