WSJT-X

The WSJT-X User Guide states, “WSJT-X includes a built-in cty.dat file containing DXCC prefix information. Updated files can be downloaded from the Amateur Radio Country Files web site when required. If an updated cty.dat is present in the logs folder and readable, it will be used in preference to the built-in one.”

If you want to update to the last country database:

  • Windows users should save CTY.DAT in your %localappdata%\WSJT-X folder
  • MacOS users should save CTY.DAT in <…>
  • Linux users should save CTY.DAT in <…>

WSJT-X by K1JT