I remember hearing about people who were really into data broadcast over shortwave radio. They were mostly prepper types, but I'm sure there were some pirates

I remember hearing about people who were really into data broadcast over shortwave radio. They were mostly prepper types, but I'm sure there were some pirates among them. Here's a pretty thorough article on data over radio: https://www.nutsvolts.com/magazine/article/may2015_Steber https://www.nutsvolts.com/magazine/article/may2015_Steber