3. TARGET TRACKING (TT)
3-16
3.11 How to Enter Set and Drift
Set, the direction in which a water current flows, can be manually entered in 0.1-de-
gree steps. Drift, the speed of the tide, can also be entered manually in 0.1 knot steps.
When course through water and speed through water are available, activate set and
drift to get course over ground and speed over ground.
Set and drift corrections are beneficial for increasing the accuracy of vectors and tar-
get data. Refer to the tide table on board the ship for setting information. These values
are applied to all targets. If stationary targets have vectors, set and drift values should
be adjusted until they lose vectors.
Note: For the IMO type, turn off the AIS function in order to enter set and drift.
To enter set and drift do the following:
1. Right-click the speed indication then select [OS Info Menu] to show the [Own Ship
Info] menu.
2. Select [2 SYSTEM SETTING] or [3 LOCAL SETTING] as appropriate.
3. Use the right and left arrow buttons to select the [SPD] page.
4. Set [Stabilization Mode] to [Water].
5. Click the [Set Drift] box to show a checkmark in the box.
6. Put the cursor in the course input box to show the up and down arrows. Click the
arrows to enter the set.
7. Put the cursor in the drift input box to show the up and down arrows. Click the ar-
rows to enter the drift
8. Close the menu.
Note: Set and drift should be checked periodically for correctness.
Set speed and
course of drift
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