GPS not consistent

Experimenting with GPS and cannot get the robot to consistently find (0,0). The field strips are correct and the offset is correct. The distance to travel is good however the angle or heading is not consistent. Any suggestions??

Angle and heading are based on where you start from. if you do not have a consistent start then your heading will not be consistent. I recommend starting from the wall or making a block to align your robot with the wall.

We realize consistency on where you start is important but we thought the GPS Sensor would be able to find a specific point no matter where you are on the field?

it can find a point but can’t find a heading.

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It turns to much or to little so its heading is off. It is calculating distance correctly so when the robot stops it is in the right area just left or right of where it should be with the center of the robot.