CALIFORNIA.SYSTEMS

  California, IT, Vintage Computing, Earthquakes

This is a personal website unaffiliated with any office, agency, or service of the State of California.

Morse Code Trainer - Koch Method

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


Show Speed Modifier

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






Current alphabet: a, b