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Morse Code Trainer - Koch Method

Koch-method Morse code trainer, beta version. UI improvements planned.

Play tones

I heard: Submit

Letter Gap (default value 2, recommended: Hard .3, .6, .8, 1, 1.5, 2 Easy Update

Show Speed Modifier

Notice! Changing the playback speed is not recommended. Playing tones slowly will harm your learning.

Speed (default value .3) Update

Expand Alphabet
Instructions

Morse Code Tables: Alphabet Numbers Letters