ITU Radiocommunication Recommendation M.1677
International Morse code characters and operational signs.
Morse Code Sources
These references support the character tables, timing notes, historical context, and learning guidance on Morse Code Alphabet.
Reference linksTiming sourcesLearning context
How References Are Used
The character tables follow standard International Morse code patterns. Learning notes and historical context are kept separate so reference pages do not become duplicate copies of each other.
What We Verify
Letters, numbers, selected punctuation, prosigns, and timing guidance are checked against recognized Morse code references before being summarized in plain language.
ARRL Morse Code resources
Learning guidance and amateur radio practice context.
Encyclopaedia Britannica: Morse Code
Historical background and plain-language overview.