Furuno FAR-1416, Руководство оператора

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3. TARGET TRACKING (TT)
3-11
3.8.2 How to change the vector length (time)
The vector time provides an estimation of the target’s vector and can be adjusted as
follows:
Place the cursor on the vector time indication in the [Vector] box, then press the left
button . The vector time cycles through the following settings with each press of the
left button .
[6min]
o
[10min]
o
[20min]
o
[30min]
o
[45min]
o
[60min]
o
[30sec]
o
[1min]
o
[3min]
o
[5min]
o
[6min]...
The vector tip shows an estimated position of the target after the selected vector time
elapses. It can be valuable to extend the vector length to evaluate the risk of collision
with any target.
3.9 Set 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 kn 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. Open the [MAIN MENU].
2. Select [NAV DATA], then press the
left button .
3. Select [SPEED], then press the left button .
4. Select [SHIP SPEED SETTING], then press the left button .
5. Select [SET DRIFT], then press the left button .
6. Select [ON], then press the left button . The setting can now be adjusted.
7. Rotate the scrollwheel to select the appropriate setting (Setting range: 000.0° to
359.9°), then press the left button . The [DRIFT] setting is now selected.
8. Rotate the scrollwheel to select the appropriate setting (Setting range: 00.0kn to
19.9kn), then press the left button .
9. 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.