MorseLabBaseMorseLabBase
Practice tool only - not a license exam, not emergency training certification. Audio stays in your browser.

SOS in Morse code - hear it and flash it

SOS is three dits, three dahs, three dits — usually sent as one continuous distress prosign, not three polite letters with long gaps. Tap Play for audio, or jump to the flashlight tool for a screen blink. This page teaches the pattern; it is not maritime certification or a promise that someone will hear you.

Text
Morse
ReadyChinese uses standard telegraph code (汉字 → 4 digits → Morse). ~7k characters · same engine as Play / Flash. Latin letters stay International Morse.Extended translator page
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When to use

Learning the rhythm; checking a puzzle that asks for SOS; practicing a visible/audible pattern in a safe drill; confirming timing at a chosen WPM.

When not

Do not rely on a website for real distress procedure. In a true emergency use local emergency services and proper signaling training. This is a practice toy.

Assumptions

Pattern `...---...` with prosign-style tight spacing by default; optional letter-spaced S O S when teaching the gap difference. Audio/light need a user gesture.

Examples

Input

Play SOS once at 12 WPM

Result

Count 3-short / 3-long / 3-short

Slow enough to feel the rhythm before you speed up.

Input

Open flashlight · SOS preset · dark room

Result

Full-screen blink practice (safe drill only)

Input

Compare letter-spaced S O S vs continuous prosign

Result

Gaps change the habit — distress uses the run-on form

How it works

  1. Fixed SOS element sequence is ready on the console.
  2. Play schedules tones via the shared timing engine at your WPM/pitch.
  3. For light practice, open flashlight with the SOS preset — same on/off idea, visual channel.

S = ... · O = --- · continuous prosign ≈ ...---... · dit ms ≈ 1200 / WPM

Gotchas

  • “Save Our Souls” is a backronym — the signal was chosen for the pattern, not the English phrase.
  • Sending S, gap, O, gap, S is not the same as the continuous prosign used as distress.
  • Phone flashlight APIs vary; screen flash is the reliable web fallback.
  • This is a practice helper, not an emergency beacon and not a substitute for real channels.

Compare

General convert: translator. Other prosigns: prosigns. Light path: flashlight. Chart: alphabet. Visual hub: for/visual.

The rhythm that matters

SOS is three short, three long, three short — usually sent as one continuous distress prosign, not three polite letters with long gaps. This page prefills the translator so you can hear and adjust WPM immediately. For screen blink practice, open flashlight with an SOS preset.

Safety boundary

This teaches a pattern. It is not maritime certification, not a beacon, and not a promise that anyone will hear you. In a real emergency use local emergency services and proper signaling training.

“Save Our Souls / Ship” are memory aids — useful mnemonics, not the operating reason you need on the air.

Common questions

Direct answers — no synonym padding.

`...---...` — three short, three long, three short.

Related tools

Practice tool only — not a license exam, not emergency training certification. See Methodology and Terms.