The basis for this puzzle is the image below. The black dot to the left indicates where to read. To get the coordinates you have to turn the disk for a number of steps.
North: 65 AB.CD
For A turn three steps clockwise. Without resetting turn 12 steps counter clockwise to obtain B. For C you turn ten steps counter clockwise and for D you turn 3 steps clockwise.
East: 22 0E.FGH
For E turn thirteen steps counter clockwise, F is just three steps in clockwise direction. If you want to know G you turn counter clockwise for four steps. The way to H is long and you have to turn sixteen steps in clockwise direction
