I virkeligheden udgør satellitsegmentet en meget lille del af de potentielle tjenesteydelser, der kan opnås på jorden i forbindelse med udnyttelse af satellitsignaler til bistand ved navigation, redningsaktioner, sikkerhed, rutevalg, styring af bilparker, ja selv taxier begynder nu at kunne modtage satellitsignaler.
In fact, the satellite sector is far from being a minor aspect, in terms of value, of the potential services that can be provided on the ground. The satellite signal can be used to help with navigation, assistance, safety, choosing a route by land or sea, and fleet management; even taxis are beginning to use satellite signals on board.