3. TARGET TRACKING (TT)
3-20
[SPEED
MENU]
1 SHIP SPEED
LOG(BT)/LOG(WT)/
GPS/MANUAL/REF
2 MANUAL SPEED
0.0kn
3 SET DRIFT
OFF/ON
3.11.4
Stabilization in true mode
The true mode past position display may be ground stabilized or sea stabilized.
The PAST POSN box shows current stabilization as TRUE-G or TRUE-S. To
change stabilization mode, open the SPEED menu and set SHIP SPEED to BT
(ground stabilization) or WT (sea stabilization).
3.12
Set and Drift
Set, the direction in which a water current flows, can be manually entered in
0.1-degree steps. Drift, in another word Rate, the speed of 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
target 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. Right-click the SPD box to show the SPEED
menu.
2. Select 3 SET DRIFT.
3. Select ON.
4. Push the right button to close the menu. Then,
the SET and DRIFT boxes appear at the top
of the display.
5. Select the SET box.
6. Use the scrollwheel to set value, rolling it to select
numeral and pushing it to set. (Setting range: 000.0 –
359.9 (°T))
7. Select the DRIFT box.
8. Use the scrollwheel to set value, rolling it to select
numeral and pushing it to set. (Setting range: 00.0 –
19.9(kn))
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:
Set and drift can also be adjusted with the EBL and VRM. Put the cursor
in either the SET or DRIFT box and operate the EBL for set and VRM
for drift.
SET 66.8
°
T
SET box
DRIFT 7.2kn
DRIFT box
