@adasauce @ln No. It's a real document from NASA. https://web.archive.org/web/20090320112249/https://descanso.jpl.nasa.gov/Propagation/mars/MarsPub_sec2.pdf
But we know Randall Munroe used to write software for NASA, so perhaps that's why? 🤣
@niconiconi Only the very bottom end of shortwave, and only during the day, it looks like. Looks like you'd mostly have to use medium wave or long wave.
@freakazoid Yes, it says the shortwave is pretty useless during the night, even in daytime, global communication is difficult.