Is the port you selected actually named "USB" ? If so that's not a valid port name in either Linux or Windows.
Mike W9MDB On Sunday, April 28, 2024 at 05:53:18 PM CDT, Eric Lundstrom via wsjt-devel <wsjt-devel@lists.sourceforge.net> wrote: Installed wsjtx_2.6.1_amd64.deb on a lubuntu OS and received the hamlib error shown below. Installed wsjtx-2.6.1-win64.exe on a windows 10 OS and received basically the same error. The hamlib DLL on the Windows machine has a file date of 1/10/2023, a size of 9.7 mb, and a file name of libhamlib-4.dll. Have wsjtx set up for CAT control on an IC-7300. Some years back wsjtx was working on both Linux and Windows on the IC-7300. Any suggestions are welcome. 73 WB6CVR _______________________________________________ wsjt-devel mailing list wsjt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wsjt-devel _______________________________________________ wsjt-devel mailing list wsjt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wsjt-devel