I have run FreeDATA on HF.
https://wiki.freedata.app/en
https://github.com/DJ2LS/FreeDATA
https://www.youtube.com/watch?v=xOSe8S_0g34
https://www.youtube.com/watch?app=desktop&v=-qWuELJRHCg
https://explorer.freedata.app/
US frequencies:
7.082.50 MHz and 14.093 MHzÂ