CW Trainer
Morse text and sidetone
Learn by listening, copying and checking
The Koch method begins with a small character set sent at the intended character speed, then expands it after about 90% copying accuracy. This trainer starts with K and M and follows a common 40-symbol progression.
Exercises are random and hidden. The radio shows stars only; the sent characters appear only after Check answer. Farnsworth spacing keeps characters crisp while adding thinking time between them.
Copy pad
Listen first. Type the ten characters you copied, with or without a space.
Koch practice method
Learn each character as one sound pattern, not as visible dots and dashes. Start with stage 2, copy fresh random groups, and move the stage control only after accuracy is repeatedly around 90%. Keep character speed high enough to hear rhythm; use lower overall speed for extra spacing.