GNSSpalvelut
GNSSpalvelut, or GNSS services, are the provision of satellite-based positioning, navigation and timing information derived from global navigation satellite systems. They rely on a network of satellites, ground control centers and augmentation facilities to deliver continuous, global coverage for users with GNSS receivers. The main constellations in operation include GPS (USA), GLONASS (Russia), Galileo (EU), BeiDou (China), with regional systems such as Japan's QZSS and India's NavIC. In addition to basic positioning signals, augmentation networks improve accuracy and reliability.
GNSS services are delivered in several forms. Open Service (OS) provides free, standard positioning signals to
Applications span surveying, mapping and construction, agriculture, transport and logistics, aviation and maritime, and time synchronization