QSO Simulator
A local Morse exchange drill for RST, QTH, and Q-codes. Share ?seed= so someone else hears the same text.
This is not on-air and not a licensed station. Pair with the Q-code sheet
and prosigns.
Listen, then answer
Use Copy practice link after you land on an exchange. Placeholders only — MORSECODER, STATION A, STATION B.
Character Quiz
Hear a letter or number. Pick the correct answer from four choices.
What the QSO simulator teaches
A QSO is a structured on-air conversation. This simulator plays common exchange elements — call, signal report, name, location — so you hear prosigns and abbreviations in order before meeting live CW.
Copy each element as text, then compare with the reveal. Use the same WPM you train in shareable practice. Raising speed without clean copy builds anxiety, not skill.
Learn prosigns separately on the prosigns page and Q-signals on Q codes. Real operators shorten further; this tool keeps phrases readable for beginners.
ITU and national band plans govern where CW is legal; licensing is required for on-air transmission in most countries. MorseCoder tools receive and generate audio locally for study only.
After scripted QSOs, try headline mode in the trainer to copy unpredictable text. Then take the quiz in Morse-to-text mode.
Historical context: radiotelegraph officers used standardized forms long before voice aviation. Wikipedia’s telegraphy articles link scans of period manuals if you want primary-style reading.