19. Navigation Sensors
19-4
Enable:
Check to align chart, using the “drag and drop” feature.
Chart alignment:
Alignment is automatically chosen if the user has defined position offset by using the chart align feature. The offset
values are given in nautical miles and degrees. If position alignment is used, the user is reminded of it every 30
minutes by the alarm “2011 ChartAlign: over 30 min”.
Dead rec:
The system automatically chooses dead reckoning if there are no valid and chosen position sources and if there are
valid and chosen speed and course sources. If the system has chosen dead reckoning, then the user can enter a new
position for the ship in the Lat and Lon fields.
Kalman filter:
The Kalman filter calculates estimated position using all valid and chosen position, speed and course sensors.
Choose On to activate this feature.
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