I would like to utilize the chartplotter, but don't know if it outputs anything like that besides nmea0183. I just need a gga string to goto like arcgis, Google earth, or global mapper. Ideally, if I could figure out how to load my own shaded relief onto furuno, I could display all my own multibeam I collected with an R2 on the helm for the boat operator. These are areas that are inland, shallow, and will never have any sort of coverage with bathy charts. I do not have room for another monitor. This is what I'm ultimatley trying to do but I know all manufacturers will basically tell you no because they want to sell chart products. I just want to use my equipment with my data!