Morse Code Trainer APK 2026: Koch Method for R36S Handheld Gamers
Learn Morse code by ear — a fast, beautiful, sound-first CW trainer. PWA, offline, open source.
Dark minimalistic Morse code (CW) web trainer from scratch to on-air speeds. Koch method, Farnsworth timing, rhythm trainer, callsigns, Q-codes, Latin & Cyrillic, mini-game.
WEB
ESP32 上的莫尔斯电码（CW）练习机固件：Koch 听写、呼号抄收、触摸桨电键与实时解码、MorseKOB 联网对练。ESP-IDF + LVGL。
CW/Morse code trainer for the R36S handheld — Koch method, waterfall band explorer, glossary, and challenges
Learn CW by ear, free. Teaches every character before it ever tests you. No account, no install, no tracking.
From your first two characters to a full on-air QSO — a complete CW trainer for ham radio operators. By Wisco Radio Labs, made in the Driftless.
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