DG2YCB

I am the author of the amateur radio software WSJT-X Improved,  JTDX Improved, and ExtIO_RTLTCP_improved, as well as co-author of the original WSJT-X. The WSJT-X program family is about weak signal communication and uses modes like FT8, FT4, FT2, MSK144, Q65, JT65, JT9 and so on. ExtIO_RTLTCP_improved is a driver for SDR receivers. You can find all these programs on SourceForge and download them for free.
URLs:
https://wsjt-x-improved.sourceforge.io/
https://jtdx-improved.sourceforge.io/
https://sourceforge.net/projects/extio-rtltcp-improved/