Well folks, I took my Thumper out on its first mission today.
It was a comical failure in that the Thumper tried to always barrel through my neighbour’s fence to the East.
I compared the lat/longs coming from my Thumper to those in my Magellan Hiking GPS and they agreed perfectly. The Thumper had a solid lock (big Green light) with 10 sats.
But the lat/longs in the Mission Planner with Google Earth were off to the West by 25 m.
So, do we have any way to calibrate the lat/longs in the Mission Planner. I need to fix this somehow.
Thanks for your note.
I understand that this case is a Google problem but what I am interested in is how others on this forum get around it.
Do they ignore the 25m offset or do they use a different map altogether. I looked at the other maps without any luck.
I am thinking of saving a Waypoint list ( with the errors ) , opening that in Excel & correcting the offset, then writing it back to the rover. That will produce Waypoints that will look badly in the MP but the rover should stay within bounds.
Can you post us a log, and also a screen shot of your Flight Plan window showing the drop down on the right side with the basemap.
“Real” Google Earth does all the corrections on-the-fly for different datums etc. In MP, you might be using a map that has a different datum or projection than you expect.
I have attached a screen shot of my MP and it includes Home and Waypoint1. That indicates where Home is supposed to be and where Google Satellite Map thinks it is according to its lat/longs.
The difference is about 25 m. Hence my rover heads East from my backyard.
Being an MP newbie, I am not sure what log you want. Can you give me details so I can grab it.