GPS and Ritchie-Working Together
One way to achieve optimal performance and safety with your Ritchie compass is by using your electronic and magnetic navigation data together. By doing this, you get the best of both worlds. Your GPS informs you of your boat’s position and calculates the speed and direction in which your boat has been travelling. Wind, current and boat speed can all create a discrepancy between what your GPS says and what’s really happening.
And that’s where a Ritchie compass in.