I don't think you can save waypoints to a sd card. If we could, we wouldn't have to buy new GPS so often. The manufs could do this if they wanted. It gets into their sales. haOriginally Posted by crappiechappy
Waypoints are stored internally in re-writable memory. You want loose waypoints because they are written to memory ram. You will need the serial cable to manage waypoints with the computer. You can manage them manually, but it is cumbersome.
This is my take on it. I could be wrong.