How Can I Isolate Bottom Fish - Raymarine C-Series Reference Manual

7-12

How can I isolate bottom fish?

VRM
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 accessed via the PRESENTATION
button:
200 kHz: Auto
75.9
200 kHz: Auto
75.9
200 kHz: Auto
75.9
200 kHz: Auto
75.9
DEPTH DIGIT
OFF ON
Gain: Auto High
ft
Gain: Auto High
ft
Gain: Auto High
ft
Gain: Auto High
ft
C-Series Display Reference Manual
WHITE LINE BOTTOM FILL
OFF ON OFF ON
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
75
fish near the bottom can be seen more
easily.
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.
75
Both the bottom and fish near the bottom
are now clearly defined.
100
SCROLL
PAUSE RESUME
D6833-1