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S in Morse Code

MORSE CODE REFERENCE

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BRIEFING

In International Morse code the letter S is ...: 3 dits and 0 dahs, 5 units long (about 300 ms at 20 WPM).

It sounds like "di-di-dit".

In MORSE HQ's Koch training, S is character 4 of 41.

Often confused with

How to remember it

Learn it by sound instead of counting dots and dashes. Say "di-di-dit" out loud, then listen to it at full speed.

Like the Koch method, hearing characters at your target speed (15-20 WPM) from day one makes it easier to speed up later.

Practice it now