AGCW-DL | Arbeitsgemeinschaft Telegrafie e.V. |
CWops | The CW Operators Club |
DTC | Deutscher Telegrafie Club |
EHSC | Radio Telegrahy Extremely High Speed Club |
EUCW | The European CW Association |
FMC | Friends of S. F. B. Morse Club |
HSC | Radio Telegrahy High Speed Club |
SHSC | Radio Telegrahy Super High Speed Club |
VHSC | Radio Telegrahy Very High Speed Club |