The concept of satellite communication has been widely used over remote areas of airspace such as the North Atlantic, but we haven’t yet fully exploited its use over land until now.

GPS is widely used in the transport industry, most obviously by the sat-navs in our cars, but largely due to current levels of signal accuracy and integrity being too low, we’re yet to maximise its use in the aviation industry. This is starting to change, however, with the ongoing development of the European Geostationary Navigation Overlay Service (EGNOS).