Furuno FSV-30 Operator's Manual page 24

1. OPERATIONAL OVERVIEW
History mode
The history mode shows the horizontal and history displays. Echo data for the
echoes within the history marker on the horizontal display scroll down the history
display in the downward direction – the latest echoes at the top and the oldest at
the bottom. This mode is useful for observing fish echoes over time. For further
details, see Chapter 5.
ES1 mode
The ES1 mode shows the echo sounder display. For further details, see Chapter
4.
1-10
N
W
S
Horizontal Display
History display
N
W
S
Horizontal Display
ES1 display
NUMERIC/GRAPHIC
DATA DISPLAY
E
History Display
NUMERIC/GRAPHIC
DATA DISPLAY
E
Echo Sounder
Display (ES1)