That only shows direction whereas I am plotting field strength changes
not direction.
I do have a torsion magnetometer though that can show directional changes.
The trouble is that every time a car goes by 60 feet away it goes
bonkers. :-)
not direction.
I do have a torsion magnetometer though that can show directional changes.
The trouble is that every time a car goes by 60 feet away it goes
bonkers. :-)
