We continue to call them GPS or GPS watches, but the truth is that it is a wrong name from the moment when the watches already allow receiving signal from GLONASS, Galileo, BeiDou and QZSS satellites.. We have remained with the designation GPS, which is the acronym for … Si GPS et Glonass se limitent à deux fréquences de signal, Galileo et Beidou en proposent cinq. Enfin, Beidou en compte 35. QZSS The fully operational global system consists of 24+ satellites. The satellites are located in middle circular orbit at 19,100 km (11,900 mi) altitude with a 64.8° inclination and a period of 11 hours and 15 minutes. Dans tous les cas, il est possible de vérifier si son smartphone est compatible ou non avec Galileo en se rendant sur le site Internet du GPS européen. "Avec un récepteur trifréquence, on peut garantir une précision de 10 centimètres en 5 minutes sans aucune station locale de référence à proximité", explique Romain Legros, de Geoflex, fournisseur de PPP. Until not many years ago, GPS watches were so called because they simply allowed to receive data from GPS satellites. À l’heure actuelle, il y en a 26. In the following example, we wanted to check GPS, GLONASS and Galileo satellite visibility from multiple latitudes in the northern hemisphere. FOC is going to be 2019 with the complete constellation completed by 2020. Il donne à l'Europe une autonomie en matière de service de positionnement par satellite. Galileo is the European Union’s global GNSS. American devices are in second position and Galileo satellites are the most distant from Earth. Le « GPS européen » Galileo est utilisé par plus d'un milliard de dispositifs dans le monde. A military vocation. On yesterday's ride my Garmin 530 was set to employ GPS + GLONASS -- so was my GF's 520. GLONASS (Global Navigation Satellite System) is owned and operated by the Russian Federation. This is also the case for Glonass and Beidou. GLONASS is a global navigation satellite system, providing real time position and velocity determination for military and civilian users. If you are in the higher latitudes (north or south - think Russia or Australia) go with GPS+GLONASS since GLONASS covers a higher latitude. High-Tech. GLONASS. Galileo. Galileo also isn’t fully operational yet. The EU plans to complete the system by 2020. As we said, the GPS was born for military use. Pour ce qui de Galileo, l’objectif est de placer 30 satellites autour de la Terre, dont 24 opérationnels et 6 de réserve. My home turf is Oregon's Cascades Range & foothills which include some serious terrain including high ridges, deep forests and canyons. Only Galileo is a public initiative, developed by the European Union. In the past (using my old 520) I always ran GPS + GLONASS but now with the 530 I have a third option: GPS + Galileo. Results were plotted over a 24 hour period for N 5°, N 25°, N 45°, N 65°, and N 85° latitude, all along E 25° longitude. Galileo est un système de géolocalisation comme le GPS américain, le Glonass russe ou le Compass chinois.