Position Alignment; How To Align Position; How To Cancel Position Alignment - Furuno FCR-21x9-BB Operator's Manual

16. NAVIGATION SENSORS
sensor from the drop-down list, click the [Select] button. [Selected] appears in the [Sta-
tus] column
The [Reset Filter] button functions to recover from sensor failure. When the button is
operated:
• Automatically excluded sensors are re-included.
• All data history is erased.
• Output values are re-estimated using new data.
• Integrity monitoring is restarted using new data.
16.8

Position Alignment

The position alignment feature functions to fine tune ship's position by using radar, ra-
dar echo target and chart material.
If position alignment is in use, the Alert 640 "Chart Align: Over 30 Min." is generated
every 30 minutes to remind the user to align position. The alert is automatically erased
in 10 seconds.
16.8.1

How to align position

If the radar echo targets' symbols are not positioned correctly on the chart, there is ei-
ther position error or gyro error or some combination of these errors.
Position may be aligned on the ECDIS display by moving own ship position or by mov-
ing radar target position. To align position, get into the Voyage navigation mode, click
the [Offset] button at the top-right position on the screen, put the cursor on the correct
position then click. The amount of offset, in bearing and range, appears to the right the
[Offset] button.
The latitude and longitude position indication is shown in yellow characters when the
position align feature is active.
16.8.2

How to cancel position alignment

Click the [Offset] button to cancel the position offset.
16-12