Callsign trainer

1. 1
   Listen

   A random amateur callsign sends in CW.

2. 2
   Copy & send

   Type what you hear and press Enter — the next call is already on the air.

3. 3
   Push the redline

   Clean copies raise the speed; misses ease it back. Score rewards speed and accuracy.

Speed mode

Adaptive nudges the speed up after a clean copy (+2, more on a streak) and down after a miss; Fixed holds your start speed all run.

Start speed

WPM the first callsign is sent at — your jumping-off point.

Callsigns

How many calls a run sends before the summary.

Tone

Pitch of the CW sidetone, in Hz.

Missed one? Press F6 to replay a call once — but it costs 50% of that call's points.