Sailors rely on the Raymarine Axiom 9 for navigation, but sometimes the chartplotter may lose GPS signal. If this happens, start by checking antenna connections and ensuring the unit has clear exposure to the sky. Metal objects or nearby electronic devices can interfere with reception, so repositioning the boat’s antenna often solves the problem. Another common cause is outdated software. Updating the system through Raymarine’s official tools helps restore accuracy and stability. If problems persist, inspect the power supply. Inconsistent voltage can disrupt GPS functions, so confirm your batteries and wiring are in good condition. When troubleshooting at sea, it’s always wise to have backup navigation methods. Still, keeping your device maintained greatly reduces unexpected issues. For detailed repair steps, wiring diagrams, and official setup instructions, consult Raymarine manuals https://manuals.online/raymarine