GPS receiver on a map. GPS (Global positioning system) uses a network of satellites to calculate the user's location on Earth. Each satellite sends a signal that is detected by the handset,and it calculates its position by triangulation. This handset is showing a position accuracy of 39 feet (just under ten metres). GPS is often used by recreational walkers and ramblers | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Molloy, Cordelia |
Taille de l’image : | 3400 px × 4825 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |