Complete reference for punctuation marks and professional procedure signals used in CW radio.
Period is .-.-.-.
Question mark is ..--...
Independent Morse tools · ITU-R M.1677-1 · No fabricated operator identity
These pages document a free browser translator and trainer. Timing follows International Morse (ITU-R M.1677-1). We do not claim an FCC callsign or Extra Class license for the site operator. Use the tools for practice; licensed instruction still matters for on-air work.
Last verified: September 2026 · Standard: ITU-R M.1677-1 · About · Editorial policy · Contact · Privacy