TracVision M9 - Page 68

TracVision M9 User’s Guide
77
Appendix D - Recalibration
Recalibrate the System
1. Select a calm day and a clear area. Excessive pitching
and rolling can distort calibration data.
2. Apply power to the TracVision system.
3. Write down your approximate heading. You will use
this information later in this procedure.
4. Steer the vessel at a slow, steady pace through a full
circle that takes at least two minutes to complete. Use
the heading information that you recorded earlier to
confirm that you completed a full circle (see
Figure D-3).
Figure D-3 Timing the Calibration Circle
30 Seconds
1 Minute
1 Minute,
30 Seconds
2 Minutes