I had the point one installed when I had my new boat serviced. The chart on the console unit is perfect, the chart on the bow is all over the place when you are trying to stay on a waypoint. I did the calibration from the console but on the bow the point 1 is not in the network list. Does that mean that they hooked it directly to the console unit and not the network. yes I have installed the nema for the engine data. any help would be greatly appreciated.