TracVision M5/M7 User’s Guide
90
Appendix B - Recalibration
Step 3 - Recalibrate the System
a.
Select a calm day and a clear area. Excessive pitching and
rolling can distort calibration data.
b.
Write down your approximate heading. You will use this
information later in this procedure.
c.
Steer the vessel at a slow, steady speed through two full circles
that take at least two minutes each to complete. Use the
heading information you recorded earlier to confirm that you
completed each full circle (see Figure B-3).
TIP:
The circles do not have to be perfectly round, but ensure that you have
turned 360° for each circle.
Figure B-3 Timing Calibration Circles
Cir
cle
#
2
3
0 Seconds
1 Minute
1 Minute,
3
0 Seconds
2 Minutes
Cir
cle
#
1