Morse Code FAQ

Morse code is a system that encodes text characters as standardized sequences of two signal durations: short (a dot or “dit”) and long (a dash or “dah”). The modern reference is the International Morse Code defined in ITU-R M.1677-1.

SOS doesn’t stand for any words. It was chosen in 1906 because its Morse pattern (… ——— …) is short, unmistakable, and easy to send and recognize even under poor signal. People later back-formed phrases like “Save Our Souls,” but those are mnemonics, not the original meaning.

Inside a letter, elements are separated by a 1-unit gap. Letters are separated by a 3-unit gap, written here as a single space. Words are separated by a 7-unit gap, conventionally written as “/” when typed.

Most learners do best starting at 15–20 WPM character speed using Farnsworth timing (extra space between characters). This trains your ear to recognize rhythms instead of counting dots and dashes.

The Koch method teaches Morse at full target speed using only two characters at first, then adds one new character each session as accuracy reaches 90%. It’s widely considered the fastest path to fluent copy.

Yes. It’s used in amateur (ham) radio, aviation navaid identifiers (VOR/NDB beacons), and emergency signalling. The maritime distress role was retired in 1999 with the GMDSS system, but Morse remains a resilient low-bandwidth mode.

Prosigns are procedural signals sent as a single Morse character without the inter-letter gap — for example BT (-…-) for a paragraph break, AR (.-.-.) for end of message, and SK (…-.-) for end of contact.

Q-codes are three-letter abbreviations starting with Q used as both a question and an answer. Examples: QTH = location, QSY = change frequency, QRZ = who is calling me?

Yes. The translator, audio playback, and practice tools all run in your browser. No accounts and no install — open a page and start.

Yes. Paste Morse with spaces between letters and “/” between words. The tool also auto-detects whether your input is text or Morse.

Yes, with attribution. See /ai.txt for the full policy. We also publish /llms.txt and /llms-full.txt as machine-readable summaries.

Use the translator’s “Copy share link” button — it encodes your text in the URL (e.g. /translate/?q=HELLO). These share URLs are intentionally non-canonical to keep search results clean.