JRC JFC-7050 - Operation - Menu Functions; Menu: Depth Range and Shift; Menu: Display Settings

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Operation
Menu
The menu and explanation of operation are displayed.
 Press [MENU]
1. Depth Range
JFC-7050 selects the best condition for measuring the depth automatically in the environment of the
sea. Or the user selects measuring the depth by Manual in the menu.
( The default setting is Auto.)
2. Shift
A user selects this function to see more detailed bottom of the sea. When you turn up the shift, the
range of Sounder shall go up from the shift range. For example, if you raise 5m of shift at 20m range,
the surface shall start 5m and the bottom range shall be 25m.
( The default setting is 0m.)
3. Display
3.1. A-Scope:
A-scope shows the research under the water by a scope to see the environment under the water.
( The default setting is Off.)
3.2. Image Speed
Select the speed of Sounder image from 4X until stop.
( The default setting is 1X.)
3.3. White Line
It is necessary to research a detailed fish on the bottom or a seaweed under the sea. The color of the
bottom changes into white or black to see the bottom easier than red.
( The default setting is Off.)
3.4. Bottom Zoom Range
Select the range of the bottom zoom or lock. It is necessary to modify the bottom.
( The default setting is 10m.)