How to learn Morse code by ear (Koch method)
The Koch method is a way to learn Morse code by sound instead of by chart. You hear characters at real speed (about 20 WPM) from day one, start with just two, and add one new character each time you copy 90% correctly. German psychologist Ludwig Koch proposed it in the 1930s, and it is still the go-to method for ham radio CW learners.
Why memorizing the chart holds you back
If you learn "A is dot dash", every sound you hear goes through a step where you count dots and dashes and look them up. That works slowly, then breaks as speed rises. Koch teaches −·− as one rhythm, "dah-di-dah", so that step never forms.
A 5-minute daily routine
Reviewers say "I am halfway through the alphabet now" because short daily sessions add up fast.
- 1. Day one: listen to only K and M
- 2. Answer as soon as you hear it. Don't count; go with your first instinct
- 3. When a session scores over 90%, add the next character
- 4. Stop after five minutes. Daily and short beats long and rare
- 5. Around 20 characters in, practice short words and call signs
The Koch order (41 characters)
Characters come in an order that keeps similar rhythms apart. Numbers and punctuation are mixed in along the way.
| Order | Characters |
|---|---|
| 1–10 | K M U R E S N A P T |
| 11–20 | L W I . J Z = F O Y |
| 21–30 | , V G 5 / Q 9 2 H 3 |
| 31–41 | 8 B ? 4 7 C 1 D 6 0 X |
Choosing a speed
Farnsworth spacing keeps each character fast but stretches the gaps between them. One dot lasts 1200 ÷ WPM milliseconds: 60 ms at 20 WPM, 120 ms at 10 WPM. Starting at 20 WPM character speed and about 10 WPM overall lets you learn the real rhythm and still have time to think.
In Morsely
Morsely's lessons follow this order: two characters to start, one more each time you pass 90%. Hear a sound, pick from four, and see the right answer with its code instantly. Numbers and punctuation are included and nothing is locked. There is also word practice, send practice with the tap key, a streak, and mastery for every character.
FAQ
- How long does it take to learn Morse code?
- With 5 to 10 minutes every day, most learners unlock all 41 characters in a few weeks to a few months. Daily practice matters more than long sessions.
- Should I memorize the chart before I listen?
- No. Learning the chart first builds a habit of counting dots and dashes. Learning by sound from the start is faster.
- It doesn't teach u about how each sound is made — how do I tell dits and dahs apart?
- A dah is three times as long as a dit. Clean tones without clicks make that easier; a pitch around 600 to 700 Hz is comfortable for most people.
- Can I practice on words, call signs or sentences?
- Yes. Morsely has word practice with common English words and call-sign style groups.
Start with two letters today
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