Abstract: Eurofix is an integrated radionavigation and communication system which was proposed and developed by the Delft University of Technology, The Netherlands. The system can be used as a regional or local augmentation system. The principal components of Eurofix are the satellite-based radionavigation systems GPS and/or GLONASS (or the future GNSS) and the terrestrial radionavigation system Loran-C (and/or its Russian counterpart Chayka). The Loran-C signals are used as carriers for a multi-channel long-range (up to 1000 km) communication system to broadcast differential corrections and other messages. Thereby, the normal navigation mode of Loran-C is preserved. This integration of ground-based and satellite-based navigation systems aims at the exploitation of the advantages of both components and, thus, improves navigation performance.

Figure 1: Basic principle of Eurofix (www.eurofix.et.tu-delft.nl)