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1.23
How to Inscribe TLL Lines
You can inscribe TLL (Target Latitude Longitude) lines on the display to mark the lo-
cation of fish schools, 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 5.7.2.)
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-2100 also outputs the TLL to the connected chart plot-
ter.
1.24
How to Use Scroll Back Mode
Scroll back mode allows the user to view past screens of fish finder images, making it
handy for comparing fish schools sizes close to each other.
To use the scroll back mode, do the following:
1. Place the cursor on any location inside the display, other than the header, footer
or menu bar.
2. Press and hold the right button.
3. Using the Trackball, drag the screen to the right. The displayed echo moves with
the cursor and is also paused.
The display shows the scroll back mode indicator (
screen.
To cancel scroll back mode and return to normal echo display, select the scroll back
mode indicator.
Note: All echoes stop when scroll back mode is active. Use caution with this feature
and avoid use when the vessel is underway.
Inscribed TLL
(vertical red line)
) at the top-right of the
1. OPERATION
1-37
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Troubleshooting
