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Mark
Ship's Track Mark*
Tidal
3
Current
2
1
Mark*
Tidal Current Data
Normal mode
C1:
.
˚
C2:
.
˚
C3:
.
˚
Combination mode
C1:
.
C2:
.
C3:
.
Net Sonde Data*
S1:
S2:
S3:
Nav Data*
S :
.
C :
D :
M
T :
.
Own Ship Data*
˚
.
N
˚
.
E
Estimate Mark
Estimate mark
data
(Continued on next page)
4-6
With gyrocompass or speed log connection, own ship's track is plotted
by a solid line. The track length to display can be selected among 5, 10,
20 and 40 times the range.When the length of the line exceeds selected
value the oldest part of the track is erased.
This mark can be displayed with current indicator input. The tidal
current marks are displayed on the net shooting mark (
sondemarks (
speed in three layers (1–3) selected on the current indicator. The tidal
current speed is shown by the length of the current mark. Note however
that no tidal current mark appears if the tidal current speed is less than
0.2 kts. Current direction can be shown as "to" or "from" by selecting
M
CURRENT VEC-Current Flow Dir on the USER menu. In the normal
M
mode with text, speed, direction and depth of the current are shown
M
for three layers (C1, C2, C3). In the echo sounder and history modes,
only the speed appears (C1, C2, C3), on the echo sounder or history
display.
When the net sonde is connected, the depth of the net sonde trans-
mitters appears in the text window, echo sounder, or audio area.
With appropriate sensors speed (S), course (C), water depth (D) and
water temperature (T) can be displayed on the text window, echo
sounder combination display and history display.
With navigation input position can be displayed in latitude and long-
itude, in the normal mode only.
The estimate mark gives relative fish quantity. Press the ESTIMATE
key. The estimate mark data appears below the mark. The fish amount
is assessed as between 0 and 100, where if the mark is filled with the
strongest echo color reddish brown, the amount is regarded as "100."
The size of the estimate mark can be changed with MARK SIZE2-
Estimate Mark on the SYSTEM menu.
Description
). The tidal current marks show tidal current
) and net
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