The European Geostationary Navigation Overlay Service is a satellite-based augmentation system developed by the European Space Agency and Eurocontrol on behalf of the European Commission. Currently, i
EGNOS RIMS "BRN" (Berlin) close to Berlin
The Wide Area Augmentation System is an air navigation aid developed by the Federal Aviation Administration to augment the Global Positioning System, with the goal of improving its accuracy, integrity
European Geostationary Navigation Overlay Service
…be better than seven metres. In practice, the horizontal position accuracy is at the metre level. Similar service is provided in North America by the Wide Area Augmentation System (WAAS), in Russia by the System for Differential Corrections and Monitoring (SDCM), and in Asia, by Japan's Multi-functional Satellite Augmentation…
WAAS system overview
WAAS reference station in Utqiagvik, Alaska
WAAS ground uplink station (GUS) in Napa, California