GPS and GNSS systems are critical for vessel navigation, providing precise location data for safe and efficient operation. Regular calibration and repair of these systems ensure that the positioning data remains accurate and reliable. Services include checking antenna alignment, verifying satellite reception, and performing software updates. Properly maintained GPS and GNSS systems improve operational efficiency and reduce navigation errors, ensuring compliance with international maritime regulations. Calibration and repair also extend the lifespan of the system, preventing costly disruptions during operations.