Reference
- Dot (•) = short, Dash (—) = long (3× dot duration)
- Within a letter: gaps are 1 dot. Between letters: 3 dots. Between words: 7 dots (or "/")
- Standard speed is measured in words per minute (WPM) using PARIS as the reference word
- Includes letters A-Z, digits 0-9 and common punctuation (period, comma, question mark)