JRC JFS-280, Instruction Manual

Page: 234 / 328

6 Operation Settings 6-86
6
6.7.6.4 Setting the STC for Fish Finder 2
This is the settings menu for adjusting the STC for fish finder 2.
Operating Procedure Press the keys "8 → 7 → 6 → 4" to go to STC2 settings
Turn the [MULTI] knob to select "6. NEXT".
Press the [MULTI] knob to move to the menus in "NEXT".
Turn the [MULTI] knob to select "4. STC2". Turn the [MULTI] knob to display the menu for
inputting values. Set the values according to the fish finder that is connected. The setting range
for the STC of fish finder 2 is from 0.0 to 10.0, and can be set in steps of 0.1. You can remove
the noise near the sending line. The initial setting value is set at 0.0.
6.7.6.5 Interference Settings
This is the menu item for setting the interference from other ships and your own ship's
ultrasound equipment.
Operating Procedure Press the keys "8 → 7 → 6 → 5" to go to
INTERFERENCE settings
Turn the [MULTI] knob to select "6. NEXT".
Press the [MULTI] knob to move to the menus in "NEXT". Turn the [MULTI] knob to select "5.
INTERFERENCE". Press the [MULTI] knob to display the pulldown menu.
Choose one item out of "1. OFF" or "2. ON" from the
pulldown menu.
Turn the [MULTI] knob to select the item you chose. Press the [MULTI] knob to set.
The initial setting value is set to "1. OFF".
6.7.6.6 Setting the STC Curve
This is the menu item for setting the propagation of ultrasonic waves and ABS ATT.
Operating Procedure Press the keys "8 → 7 → 6 → 6" to go to STC CURVE
settings
Turn the [MULTI] knob to select "6. NEXT". Press the
[MULTI] knob to move to the menus in "NEXT".
Turn the [MULTI] knob to select "6. STC CURVE". Press the [MULTI] knob to display the
pulldown menu.
Choose one item out of "1. 20", "2. 30", or "3. 40" from
the pulldown menu. Turn the [MULTI] knob to select
the item you chose. Press the [MULTI] knob to set it.
The initial setting value is set to "1. 20". If you are searching for small fish schools, set the
value to "2. 30".