Furuno FSS-3BB, Operator'S Manual

Page: 43 / 121

1. OPERATION
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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 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 the connected chart
plotter. See [TLL Output] on page 5-9.
To inscribe a TLL line, place the cursor on the display where you want to inscribe the
line, 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 FSS-3BB also outputs the TLL to the connected chart plot-
ter.
1.24 How to Use the Scrollback Mode
The scrollback mode allows the user to view past screens of fish finder images, mak-
ing it handy for comparing the sizes of schools of fish close to each other.
To use the scrollback mode, place the cursor on any location inside the display, other
than the header, footer or menu bar. While pressing and holding the right button, drag
and drop the screen to the right. The displayed echo moves with the cursor and is also
paused.
The display shows the scrollback mode indicator (Day mode: , Night mode: ) at
the top-right of the screen.
To cancel the scrollback mode and return to normal echo display, select the above-
mentioned scrollback mode indicator.
Note: All echoes stop when the scrollback mode is active. Use caution with this fea-
ture and avoid use when the vessel is underway.
TLL line