VideoRay Defender MSS, Operator'S Manual, Page: 101 / 109

15. The display will update with a before (red) and after (blue) graph. The red graph will likely have
sections with a lot of variation and be offset from 1.0. The blue graph should have much less
variation and average value close to 1.0.
16. Click the Write to selected devices button.
17. Click the Exit button to close the Magnetic Field Mapper software.
18. Turn off the ROV power, wait 10 seconds and then turn the ROV power on again.
19. The compass calibration is complete and the ROV is ready to use.