Robust Packet
Introduction to Robust Packet (and links to WinRPR software/setup)
https://www.youtube.com/watch?v=Aaesgvdf1T8 (Intro to Robust Packet)
https://www.hamradio.me/graphs/WinRPR_Alpha_Software/
https://vapn.org/help/winrpr-commands
https://kypn.wordpress.com/category/robust-packet/ (Robust Packet Frequency List)
Robust packet stations:
http://server2.g8bpq.net:8181/ (Click on 'modem modes' and then 'robust packet')