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82 A-Series display - User reference manual
Measuring depth and distance
The fishfinder display gives you various methods of measuring
depth and distance:
Depth reading - your current depth. The size and position of this
readout can be changed in the Fishfinder display Setup menu
(see page 85).
Depth lines - horizontal dashed lines drawn at regular intervals
to indicate the depth from the surface. These are switched on/off
in the Fishfinder Display Setup menu (see page 85).
Depth Target ID - depths noted against recognized targets. The
sensitivity of these IDs is directly linked to the Fish Alarm sensi-
tivity; the greater the fish alarm sensitivity, the greater the
number of labelled returns. These targets are switched on/off in
the Fishfinder Display Setup menu (see page 85).
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.
Note: When multiple fishfinder windows are open, we recommend
you have the depth reading displayed in at least one window.
Measuring depth and distance with VRM
You can use a Variable Range Marker (VRM) to determine the depth
and distance-behind-boat of an object. These markers consist of a
horizontal (depth) line and a vertical (distance-behind-boat) line;
each of which are marked with the appropriate measurement and
are controlled individually.
VRM marker
indicating
depth of target
Depth
reading
Depth line
Depth
markers
Depth
target ID
Cursor
(depth indicated
in data bar)
VRM marker
indicating
distance
behind boat
82


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