Operation
14
Changing the Chart Feed Speed (
CH
SPD
key)
Each time you press the
CH
SPD key, the chart feed speed changes from 1/1 to
1/2, to 1/3, to 1/4, to 1/5, to 1/6, to 1/7, to 1/8, to 1/9, and to -/- (off).
Continue pressing the
CH
SPD key and the feed will stop at the stop position
once. Release the
CH
SPD key to switch the chart feed.
Displaying/Hiding Graphs (
GRAPH
key)
Press the
GRAPH
key to display graphs of water temperature and depth
changes.
The water temperature is marked by a white line, the water depth
by a red line. BH (Bottom Hardness) represents the sea bottom
material with one of the numerals 1 through 8.
Press once again to hide the graphs.
Writing an Event (
MARK
key)
The
MARK
key is used to write event (fishing grounds and fish school
location). This key is operable only if an external plotter or similar device is
available.
Press the
MARK
key where you want events written. A marker line will appear
at the position where the
MARK
key was pressed.
Displaying/Hiding an A-scope Picture (
SCP
key)
You can display an A scope view in the right-hand side of the screen to show
fish school responses in varying color tones and widths according to their
intensity. Press the
A
SCP key to display an A-scope view.
The A-scope is not available while the sounder is in the MIXED
display mode.
Water temperature and depth graph
A-scope view