We are using QGroundControl, plus a Waterlinked GPS and DVL. If you click positions on the map and tell it to navigate to a point, it seems to works well. But if you try to create a route–important for building search grids–you get continuous altitude errors and then the navigation cancels.
The QGroundControl interface only seems to accept positive numbers for altitude, but also complains if you leave it blank or set it at 0 (to control depth manually).
Anyone else run into this or find a workaround?
Thanks,
- Brad