APRS is cool: https://en.wikipedia.org/wiki/Automatic_Packet_Reporting_System https://en.wikipedia.org/wiki/Automatic_Packet_Reporting_Sys... https://aprs.fi/

APRS is cool: https://en.wikipedia.org/wiki/Automatic_Packet_Reporting_System https://en.wikipedia.org/wiki/Automatic_Packet_Reporting_Sys... https://aprs.fi/ https://aprs.fi/ is a site that displays a bunch of devices online. Some people have APRS radios in their cars so they can see exactly where it is for example.