WB4KDI Engineering Notebook
Digital Modes
WSJT Modes
WSJT Modes are NOT QRP modes!
WSJT modes (FT8, JT65, JT9, etc) are weak signal modes, but not exclusively QRP.
10-25 Watts and a dipole are usually sufficient to work just about anywhere with signal level of -10 or better.
More power may be needed to QSO during poor band conditions or to work DX.
These modes work well with QRP (5W) and QRPp (<1W) signals. Problems handling strong signals
are usually limitations in the receiver and computer sound interface and not because
the loud station is running too much power.
WSJT modes require accurate clock time to decode properly.
WSJT-X