JRC JFS-280, Instruction Manual

Page: 198 / 328

6 Operation Settings 6-50
6
Ratio scale
Level scale
Maximum value
in histogram
School of fish mark
Range is 1/5, 1/4, or 2/5
Calculation of the inside of the red frame
6.4.4.1.1 Detection Area
This is the menu item for setting the area of the detection area.
Operating Procedure Press the keys "8 → 4 → 4 → 1 → 1" to go to DETECT
AREA settings
Turn the [MULTI] knob to select "1. DETECT AREA".
Press the [MULTI] knob to display the pulldown menu.
Adjust the detection area according to the type of fish
and the fishing method.
"1. Small (10%)", "2. Medium (20%)", "3. Large (40%)"
The initial setting is set to "1. S".
It is normally set to the initial setting value.
6.4.4.1.2 Mark Size
This is the menu item for setting the size of the marks displayed on the screen.
Operating Procedure Press the keys "8 → 4 → 4 → 1 → 2" to go to MARK
SIZE settings
Turn the [MULTI] knob to select "2. MARK SIZE".
Press the [MULTI] knob to display the pulldown menu.
Adjust the mark size according to the type of fish and
the fishing method.
The various setting ranges "1. 1/5", "2. 1/4", "3. 2/5"
are displayed.
The initial setting is set to "1. 1/5".