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Morse Basics

What Are Dits and Dahs in Morse Code?

Short answer

A dit is the short element in Morse code, often written as a dot. A dah is the long element, often written as a dash. Their lengths and the pauses between them create each character's rhythm.

By Morse Orbit

Dots and dashes are convenient written symbols, but Morse code is also a sound-based signalling system. Operators often say “dit” for a short element and “dah” for a long one. The spoken syllables help describe the rhythm you hear when Morse is sent as an audio tone.

How long are a dit and a dah?

Under standard International Morse timing, a dit lasts one unit and a dah lasts three units. The gap between elements in the same character lasts one unit, the gap between characters three units, and the gap between words seven units. The timing rules guide explains why those gaps matter.

Examples

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Dits and dahs, by ear
Play each character and say its rhythm along with it.
Morse characters with their written pattern and approximate spoken rhythm
ExampleWritten patternSpoken rhythm (approximate)Listen
E.dit
T-dah
A.-di-dah
N-.dah-dit
S...di-di-dit
O---dah-dah-dah

The spoken rhythm is a learning aid, not a separate official spelling system. Teaching resources may write the syllables with slightly different capitalisation or hyphens.

Why learn the sound instead of only memorising the chart?

When listening to Morse, you need to recognise the whole rhythm. A chart helps you check a character, but listening practice builds the ability to identify a signal without first translating it into a visual row of dots and dashes. The ARRL's learning resources discuss sound-based character recognition.

Practise dits and dahs

Use the Morse Orbit alphabet reference to play individual characters. Then try the practice lessons with the chart out of sight, so you identify each sound by ear. For a step-by-step plan, read how to learn Morse code.

Try it in Morse Orbit

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Browse letters, numbers and punctuation in International Morse and play any one of them.

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Common questions

Is a dit the same as a dot?

A dit is the spoken name for the short Morse element, commonly written as a dot.

Is a dah the same as a dash?

A dah is the spoken name for the long Morse element, commonly written as a dash.

Why is a dah three times longer?

The three-to-one ratio is part of the standard International Morse timing system defined in ITU-R M.1677-1.

About this guide

Written and published by Morse Orbit, a free educational Morse code site. Facts are checked against the sources listed, and Morse patterns come from the same International Morse (ITU-R M.1677-1) engine as our tools.

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