Protecting onboard electronics is another key component of lightning protection. Even when lightning follows the designed pathway, electromagnetic interference can still damage electrical equipment like GPS systems, radios, depth sounders, chart plotters, and autopilots. Installing surge protectors and ensuring that all electronic components are properly grounded helps minimize the impact of electrical disturbances. Many experienced boat owners also shut down or unplug non-essential electronics when storms approach to add an extra layer of protection. antifulmine barca