The other half of Morse · learn to send
Morse code keyer
Reading Morse is half the skill — this is the other half. Tap the spacebar, mouse, or the on-screen key like a straight key: a quick tap is a dit, a longer hold is a dah. The trainer listens to your fist, decodes it live, and scores how clean your timing is.
Send this: —
Keying
Decoded
How to send Morse on a straight key
- Dit vs dah is about length. A dah is three times the length of a dit. Hold the key briefly for a dit, about three times longer for a dah. The trainer adapts to your own timing when "Adapt to my fist" is on.
- Gaps carry meaning too. Leave one dit-length between elements of a letter, three dit-lengths between letters, and seven between words. Good operators are recognised by their spacing, not their speed.
- Rhythm beats raw speed. Send at a pace where your spacing stays even. The timing calculator shows the exact millisecond lengths at any WPM.
- Close the loop. You can already copy Morse by ear with the Koch trainer and test yourself with flashcards. Sending here completes both halves of real CW.
Ready for a real key? Our straight-key buying guide covers everything from a $25 first key to a buy-it-once classic.