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108 C-Series Display Reference Manual
5.6 Determining depths and distances of targets
The fishfinder provides various features to determine depths and distances:
• Depth reading - your current depth displayed. The size and position of this digit
can be changed via the Fishfinder display Setup menu (see
page 110
).
• Depth lines - horizontal dashed lines drawn at regular intervals to indicate the
depth from the surface. These are switched on/off via the Fishfinder Display Setup
menu (see
page 113
).
• Depth Target ID - depths noted against recognized targets. The sensitivity of
these IDs is directly linked to the Fish Alarm sensitivity; the greater the fish alarm
sensitivity, the greater the number of labelled returns. These targets are switched
on/off via the Fishfinder Display Setup menu (see
page 113
).
• Cursor depth - the depth and the distance from your boat marked by the cursor,
is indicated in the data bar at the top of the screen. This performs in a similar way to
a VRM, but without lines.
• VRMs - to indicate the distance behind your boat and the depth below of selected
objects. For further information see
page 109
.
78
78
70
69
74
63
69
73
49
48
49
74
74
200 kHz: Auto
Gain: Auto High
VRM 1
ON OFF
RANGE
0.787nm
DEPTH
44.7ft
VRM marker
indicating
depth of target
VRM marker
indicating
distance
behind boat
Depth
reading
Depth line
Depth
markers
Depth
target ID
Cursor
(depth indicated
in data bar)
D6864-2
81221_4.book Page 108 Tuesday, February 28, 2006 5:24 PM