The UK had a go of it with eLORAN for a while, but no one else (France, Netherlands) seemed to have been interested, and so it was shelved AFAICT: * https://ww

The UK had a go of it with eLORAN for a while, but no one else (France, Netherlands) seemed to have been interested, and so it was shelved AFAICT: * https://www.trinityhouse.co.uk/notice-to-mariners/27-15-enhanced-loran-discontinued https://www.trinityhouse.co.uk/notice-to-mariners/27-15-enha... * https://www.maritime-executive.com/article/europe-gives-up-on-eloran https://www.maritime-executive.com/article/europe-gives-up-o... South Korea is having a go at it: * http://www.digitaljournal.com/tech-and-science/technology/ships-ditch-gps-for-eloran-navigation-system-because-of-hacking/article/499423 http://www.digitaljournal.com/tech-and-science/technology/sh... A government or three (NATO?) have to decide on a system (eLORAN or other), publish standards, and buy a bunch of equipment (transmit and receivers) to kick start things.