SOS Morse Code Pattern
Use one rhythm in every format: three short, three long, three short.
SOS rhythm summary
Symbols: ... --- ...
Tap: short short short / long long long / short short short
Sound: dit dit dit / dah dah dah / dit dit dit
Light: short flash short flash short flash / long flash long flash long flash / short flash short flash short flash
How to tap SOS
Tap three short beats, then three long beats, then three short beats. Keep spacing consistent so the pattern is readable.
How to flash SOS with light
Flash three short pulses, then three long pulses, then three short pulses. Keep each long pulse clearly longer than each short pulse.
SOS sound rhythm
The sound rhythm is dit dit dit / dah dah dah / dit dit dit. Keep dah about three times the length of dit.
Timing rules
Dot duration is one unit. Dash duration is three units. Gap between symbols inside a letter is one unit.
Practice tips and common mistakes
Practice at a slow, steady tempo first. Common mistakes are making dashes too short and inconsistent gaps between parts.
FAQ
What is the SOS Morse code pattern?
It is ... --- ..., meaning three short signals, three long signals, and three short signals.
How do you tap SOS in Morse code?
Tap short short short, long long long, short short short with clear spacing.
How do you flash SOS with a light?
Use three short flashes, three long flashes, and three short flashes.
What is the rhythm of SOS?
Dit dit dit / dah dah dah / dit dit dit.
How long should the dashes be?
Each dash should be about three times as long as each dot.
What are common mistakes when sending SOS?
Most common errors are uneven timing, dashes that are too short, and unclear spacing between signal groups.
Related pages: SOS in Morse Code: ... --- ..., What SOS means, Morse Code Timing Rules and Morse Code Practice.