The position, depth, temperature of each event will be saved to internal
memory and a symbol ( ) is drawn on the plotting screen at the event’s
position. This data of the stored event can recalled when ou are in the
mode and select the desired event with the
key.
33.1.4 Using the
A very useful tool for measuring objects on the Fishfinding screens is the
(Variable Range Marker). The
is a vertical line that can be shifted
up or down the display any time by just pressing
or (down)
sections of the direction keypad. When the line is
stopped, the depth
line is displayed
edge of the
line.
The
feature is also used to position the ZOOM
_
window whenever
mode is selected for
those close up looks at fish schools.
33.15 Selecting Range Scales
The depth of the
pictures that are viewed on the fishfinding
displays can be controlled “manually” by the operator, or “automatically”
by the fish tinder when operating
The best fishing display
images will likely occur when the operator chooses the range scale depth
selections manually to show the fish schools and the sea bottom area of
interest on-screen. The “Auto
isveryuseful when
off operation is necessary while steering the boat and bottom tracking is the
primary interest.
The depth or range scales for the
can be
set manually anywhere between the minimum
range scale of 0 to 5 Feet down to 5000 Feet, 2000
Meters, or 1000 Fathoms in 5 unit increments.
While using the
or
fishfinding
display
modes, to set a specific range scale depth,press the
key. A temporary menu, “RANGE
appears. Use the
(up) key to select a shallower
scale. Press the
(down) key to select deeper
range scales. The Range scale value appearing in
the menu box changes each tune the up/down key
is pressed to show the new setting. The range scale is redrawn to the new
OPERATION 49
