Isolating Bottom Fish - Raymarine E120W Reference Manual

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Isolating bottom fish

You can separate the echoes from fish near the bottom and from the bottom itself by
using the White Line and/or the Bottom Fill features.
200 kHz: Auto
75.9
200 kHz: Auto
75.9
200 kHz: Auto
75.9
200 kHz: Auto
75.9
White Line and Bottom Fill are selected for individual fishfinder windows.
Note:
Gain: Auto High
ft
Gain: Auto High
ft
Gain: Auto High
ft
Gain: Auto High
ft
E-Series Networked Display Reference Manual
Standard fishfinder image
The standard fishfinder image displays the
bottom as a combination of features (mud,
sand, fish targets etc) with various sonar
signal strengths.
75
White line
When this feature is applied, a white lIne
is drawn along the bottom (as defined by
the digital depth value) and the detail
below the bottom removed.
Fish near the bottom can now be seen
more easily.
Bottom fill
When this feature is applied, the detail
below the bottom is removed and
replaced by a single contrasting color.
The bottom is now clearly defined and the
fish near the bottom can be seen more
easily.
75
100
White line and bottom fill
When both White Line and Bottom Fill
are applied, the bottom is defined by a white
line and the detail below it replaced by a
single contrasting color.
Both the bottom and fish near the bottom
are now clearly defined.
75
100