It's a fairly basic question I have: what types of maps can I use in my 898 cx unit? It comes with the preloaded internation map, which is useless in Germany. For my Lowrance there is a possibility to use their free MapCreator and run it on a vector map from OpenStreetMap. That gives a free option for maps. Is there an equivalent to use Google Maps or OSM on the humminbird? I don't need any depth info, I'm fine with regular water body contours.
I've also seen that Reefmaster can export Humminbird maps. Would this export the map it shows or do I get some crappy result?
I gues the general idea is to use Navionics. So I just buy one of their products, put it on SD and in the unit and I get a map? Can these cards be duplicated?
If you have any practial advice, I'd be very grateful!