To learn Morse code, practise recognising a character’s rhythm, then check whether you can identify it without looking at a chart. This guide provides a small starting set, a repeatable 20-minute session, sample exercises with answers, and a progress sheet. It is a learning plan you can adapt, not a promise of fluency in a fixed number of days.
Start with four characters
Begin with E, T, I and M. E is a single dot, T a single dash, I two dots and M two dashes. Listen to each as a complete sound. Say “dit” for a dot and “dah” for a dash if that helps, but avoid turning every received character into a long counting exercise.
| Character | Written Morse | Listening cue |
|---|---|---|
| E | . | dit |
| T | - | dah |
| I | .. | dit-dit |
| M | -- | dah-dah |
Open the audio player and generate a short group such as E T I M. Listen with the screen covered, write your answer, then reveal the original. Use a comfortable volume. If you cannot distinguish the signals, shorten the exercise or adjust the playback speed before adding more letters.
Understand the gaps before decoding words
In International Morse, a dot is one timing unit and a dash is three. The silent gap inside a character is one unit, between characters three units, and between words seven units. These proportions are documented in ITU-R M.1677-1. For example, an illustrative 100-millisecond dot gives a 300-millisecond dash and a 700-millisecond word gap.
Spacing changes the message. Written .. is I, while . . is two E characters. In the site’s written tools, spaces separate characters and a slash marks a word boundary. A sequence pasted without those boundaries can have several interpretations; a decoder cannot reconstruct missing information reliably.
A repeatable 20-minute practice session
| Time | Exercise | Record |
|---|---|---|
| 0–2 minutes | Play each character in your current set and review its correct pattern. | Character set and audio speed. |
| 2–7 minutes | Identify ten shuffled single-character audio prompts without a chart. | Correct answers out of ten; missed characters. |
| 7–12 minutes | Write Morse for ten randomly ordered letters, then check each answer. | Correct answers out of ten, separately from listening. |
| 12–17 minutes | Replay mistakes, then attempt short groups of two or three characters. | Which pair you confused and which gap you missed. |
| 17–20 minutes | Check the answer key and choose one adjustment for the next session. | Repeat, add a character, or change speed. |
These time slots are a practical template. If ten prompts take longer, use fewer and record the actual count. Stop when fatigue makes answers random. Listening and writing are different skills, so keep their scores separate: a strong written score does not show that you can recognise the same characters by ear.
Sample exercises and answer keys
First decode these spaced groups on paper. Keep the answers below out of view until you have attempted the set. You can then use the audio player to hear the same groups and the decoder to check written input.
. - .. ---- .. - ... . / - --
Show the answers
- E T I M
- M I T E
- IE TM; the slash separates the two groups.
Once you add A, N, S and O, try -. --- / -- .. ... -. The answer is NO MIST. Another short check is - .. -- ., which spells TIME. These are controlled exercises using the starting characters, not examples of complete radio operating procedures.
Choose when to add characters
Use 80 percent as an initial personal practice target, then adjust it if you need more consistency. With 20 listening prompts, 16 correct answers is 80 percent: 16 ÷ 20 × 100. Fourteen correct is 70 percent. Record the misses rather than counting only the score. If all four mistakes were M confused with T, that pair needs attention even when the overall target was reached.
Repeat the same set in another session before advancing. An unusually good attempt may reflect memorising the order. Shuffle prompts and change the groups. Add only one or two letters at a time; keep the earlier ones in the exercise so the new characters do not displace them.
A possible expansion is E, T, I, M; then A, N, S, O; then R, K, D, G, U, W. After these become familiar, introduce the remaining letters in small sets using the alphabet reference. Add numbers as a separate set. This order is one manageable option, not a universal course standard.
Keep a simple progress sheet
| Session | Set | Listening | Writing | Next adjustment |
|---|---|---|---|---|
| Example 1 | E, T, I, M | 14/20 = 70% | 18/20 = 90% | Repeat listening; review I versus E. |
| Example 2 | E, T, I, M | 17/20 = 85% | 19/20 = 95% | Repeat with a new shuffled order. |
| Your session | ______ | ______ | ______ | ______ |
The example scores are illustrative, not results from a learner study. Add the date, playback speed and response time to your own notes. Compare sessions conducted under similar conditions. Changing speed, character count and time limit together makes it difficult to identify the source of a lower score.
Troubleshoot common difficulties
- You know the chart but miss audio: practise short listening sets with the answer hidden. Review the chart after the attempt.
- You recognise letters but lose whole words: return to two-character groups and focus on the character gap.
- Answers depend on position: randomise the order instead of rehearsing E, T, I, M every time.
- Scores fall after adding letters: reduce the new set and mix it with a few familiar characters.
- Input produces a shorter translation: check unsupported symbols and separators. Compare every character with the reference instead of assuming the output preserves all input.
What the site’s tools can help with
The practice quiz can help check recall; the audio player provides adjustable standard timing. The current quiz supports a configurable Latin letter and digit set, written or listening prompts, and a missed-character summary. It does not form a complete Koch course or provide separate Farnsworth spacing controls. You can still use them alongside your own small character sets and progress sheet.
Adapt the presentation and response method to your hearing, vision, motor or attention needs. This plan covers basic recognition and recall, not licensing requirements or emergency communication training. See the standard and tool-testing notes for limitations, and use the contact page to report a reproducible mapping or playback error.
Use the current practice controls
Enter ETIM in the practice character set, select ten questions and choose Listen to Morse. Press Play prompt again for each signal, type one answer and check it before continuing. Record the missed characters at the end. For a visual recall test, run a separate session with Read Morse rather than combining the scores.
For further training resources, see the ARRL learning Morse code resource. Choose a method that matches your goal and access needs; this site’s short routine is one practical option.