Practice CW like an operator.
Four browser tools for copying callsigns, simulating a QSO, decoding live CW audio, and meeting operators on a simulated band.
ModeCallsign Trainer
AudioReady
Current WPM20 WPM
Sidetone600 Hz
Callsign Trainer
Listen to a randomized callsign, type what you copied, and build a clean streak.
Listen and copy
1 / 20??????
Accuracy0%
Streak0
Score0
Result
LivePress Play to hear the first callsign.
Recent copies
No attempts yet.
With thanks to HB9BZA, who compiled and freely shared the LoTW Users List with the amateur radio community.
QSO Simulator
Walk through a short CW contact: CQ, report, name, QTH, and 73.
Current exchange
Step 1CQ CQ DE BA7MTH BA7MTH K
Copy0%
Exchange1 / 6
XP0
QSO transcript
RX/TXMorse Translator
Listen to CW from a microphone or shared system audio and decode it into characters in real time.
Audio input
MicrophoneSignal detector
IdlePeak tone-- Hz
Signal-- dB
Timing20 WPM
Decoded text
IdleWaiting for audio.
High confidence
Possible
Uncertain
Live Morse
Dit / dah...
Choose an input source, then start listening.
Auto-tunes narrow CW tones from 350 to 1000 Hz. Microphone access requires permission.