A while back Jorge NN4QQ made us aware of WSJT software being used to test propagation paths (Weak Signal Propagation Reporter) and to populate a database and map - WSPRnet - that is available for viewing by anyone on the Web.
A special HF Digital page from ARRL provides links to information, software downloads and audio samples for JT65 and several other digital modes, including the ever popular PSK31.
A Windows version of the JT65 software was developed by Joe Large W6CQZ and is available at the HF Digital page. A brief web search shows that Mac users are also running JT65 via two options:
- Compiling WSJT software to run on a Mac
- Running the Windows version under WINE or Crossover