1. OPERATION
1-40
1.24
How to Inscribe TLL Lines
You can inscribe TLL (Target Latitude Longitude) lines on the display to mark the lo-
cation of schools of fish, shoals, or other points of interest. The position of each TLL
is output to the connected chart plotter.
Note 1:
The position output function requires connection to an external EPFS device
which provides own ship position data.
Note 2:
Data other than latitude and longitude can be output to connected chart plot-
ters. See section 6.7.2.
Note 3:
If the [Timer] function (icon: ) is on (see section 1.24) the elapsed time
(max. 99 min. 59 sec.) can be shown by double clicking the display,
To inscribe a TLL line, place the cursor on the display location to be inscribed, then
double-click. A vertical line, red in color, appears at the location. The TLL moves with
the inscribed location. You can inscribe multiple lines at any time.
Under default settings, the FCV-38 also outputs the TLL to the connected chart plotter.
1.25
How to Use the Scroll Back Mode
Scroll back mode allows the user to view past screens of fish finder images, making it
handy for comparing the sizes of schools of fish close to each other.
To start the scroll back mode, use the right button to drag and drop in the rightward
direction. When the scroll back mode is active, the “scroll back release” button (Day
mode:
, Night mode:
) appears at the top-right corner.
To release the scroll back mode, click the “scroll back release” button (Day mode:
,
Night mode:
).
Note:
All echoes stop when the scroll back mode is activated. Use caution with this
feature and avoid use when the vessel is underway.
Inscribed TLL
(vertical red line)
