Anatomy of a QSO
Type in your callsign and watch a real CW contact unfold: the call, the answer, the reports, the farewell. Every transmission is broken into parts and sounds as it would on the air.
The code tree
Morse code tree — the Morse alphabet as a binary tree drawn as a printed board: type any text and watch it run down the branches, with timing and sound.
Timing
CW timing calculator — dot, dash and gap lengths from the speed in WPM, Farnsworth spacing, necessary bandwidth to ITU-R SM.1138 and the advantage over SSB.
Decoder
Neural CW decoder on the DeepCW model, right in the browser tab — audio from your sound card becomes text, with nothing to install and nothing sent to a server.