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Positioning with GPS .jpg ( bytes)

GPS = Global Positioning System

Utilization of individual satellites. Without the aid of a corrections signal to increase precision

Positioning with DGPS

Positioning with DGPS .jpg ( bytes)

DGPS = Differential Global Positioning System

EGNOS (European Geostationary Navigation Overlay Service): satellite transmitter of a corrections signal
or GPRS corrections signal sent by the "Office fédéral de topographie" [Federal Office of Topography]: SWIPOS-NAV.

This signal, combined with the others, increases precision to within a few decimetres

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