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1. OPERATIONAL OVERVIEW
1-14
1.10 Marker Line
The [MARKER/TLL] key inscribes a vertical marker line on the screen when
pressed. It may be used to denote a fish school or other important echo.
At the same moment the key is pressed, latitude and longitude position are
output to a navigation plotter and marked on its screen if this unit is interfaced
with position-fixing equipment.
Elapsed time from the moment the [MARKER/TLL] key is pressed may be
displayed at the upper-left corner of the screen. For further details, see SCROLL
TIME on page 2-3.
20
40
60
80
0
0H01M
49.6
m
Marker line
Shown in second color
from top of color bar in
16-color display; the top
color of color bar in 8-color
display.
Elapsed time
from when the
[MARKER/TLL]
key is pressed.
LF
1/1
0
0.0
Marker line and elapsed time indication