Set And Drift - Furuno FAR-2218-BB Operator's Manual

3. TARGET TRACKING (TT)
3.14

Set and Drift

Set, the direction in which a water current flows, can be manually entered in 0.1-de-
gree steps. Drift, also known as "Rate", or the speed of the current, can also be en-
tered 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.
To enter set and drift do the following:
1. Select the [SPD] menu box, then right-click. The [SPEED] menu appears.
2. Select [SET DRIFT].
3. Select [ON], then press the ENTER MARK key. The setting can now be adjusted
and [SET] is selected.
4. Spin the scrollwheel to select the appropriate setting (Setting range: 000.0° to
359.9°), then left-click. The [DRIFT] setting is now selected.
5. Spin the scrollwheel to select the appropriate setting (Setting range: 00.0kn to
19.9kn), then left-click.
6. Close the menu.
Note 1: Set and drift are available when using manually input speed, speed through
the water. The speed source is shown as "WTC" (Water Tracking Count).
Note 2: Set and drift should be checked periodically for correctness.
Note 3: When speed data input from the position sensor is valid, set and drift are not
adjustable.
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