Symbols · ITU International Morse Code
Morse code for : is ---... — 6 signals (3 dots, 3 dashes).
The Colon (:) in international Morse code is ---... — 6 signals total. Punctuation codes are part of the full ITU Morse standard.
Use the tools below to listen, copy, download, and practice.
Select the correct Morse code for ::
To transmit Colon (---...), use this sequence:
| Speed | Dot | Dash | Letter gap | Word gap |
|---|---|---|---|---|
| 5 wpm | 240ms | 720ms | 720ms | 1680ms |
| 10 wpm | 120ms | 360ms | 360ms | 840ms |
| 20 wpm | 60ms | 180ms | 180ms | 420ms |
Repeat the pattern aloud: ---... — until it becomes muscle memory.
The Morse code for Colon (:) is ---... — 6 signals total (3 dots, 3 dashes).
To send a Colon: long press, then long press, then long press, then short tap, then short tap, then short tap. Punctuation in Morse code uses 5-6 signals.
Yes. Punctuation like the Colon (---...) is part of the ITU standard. However, amateur radio CW operators often use prosigns and abbreviations.
The most common emergency punctuation is SOS and the slash (/) for separating callsigns. The Colon appears mainly in formal radiogram traffic.
Colon uses 6 signals: ---.... Letters use 1-4, numbers always use 5.
Characters with similar Morse patterns: