How about the other way around?
The lake I am primarily interested in has no depth data on the Bluechart Vision map of the area. I wonder if the TOPO map might have the lake contours. Any way to display this map in Homeport, and, more importantly, any way to eventually display it on a chart plotter? I have the TOPO map of interested unlocked on an SD card, but it won't display in Homeport, so I'm guessing it probably won't display on a chart plotter. Any ideas?
I think I found an answer in this tutorial: [Only registered and activated users can see links. ] at least for homeport compatibility. With such a hugely informative forum it takes a lot of digging but so far my issues are all seeming to be resolved. I will be more patient in the future and only post when I really get stuck.