fishing since often many species of game fish like to suspend in, just above, or just below the thermoclines.
White Line
The White Line shows the difference between hard, soft bottoms and even distinguish- es between fishes and structures located near the bottom. In this way it is easier to tell the difference between a hard and soft bottom and even to distinguish fishes and structures located nearby the bottom. For example, a soft, muddy or weedy bottom returns a weaker echo that is shown with a narrow white line while a hard bottom returns a strong echo that causes a wide white bottom line.
Surface Clutter
Appears like noise at the top of the screen extending many feet below the surface. It’s caused by many things, including air bubbles, bait fish, plankton and algae.
Structures
Generally, the term “structure” is used to identify objects like wrecks and weeds rising from the bottom.
Bottom Echo Profile
Bottom profile recorded by the FF520. When the echo sounder is set in
3.1DISPLAYING THE FISH FINDER PAGE
This section explains how to show and customize the selection of the Fish Finder display pages. Legend:
[MENU] If you see brackets around a bold and capital letter word this refers to a key press.
[CHART] If you see brackets around a bold and small capital letter word this refers to a Soft Key press. PAGE SELECTION An underlined word refers to a selection in the menu
NOTE FOR CP180/CP180I/CPV350
In the following the [ENTER] key is the same of the [ENT] key, [CLEAR] is the same of [CLR].
3.1.0Menu selection for CP155C/CP175C/CP1000C
1.From all pages except the Fish Finder page, press [MENU].
2.Move the ShuttlePoint knob to highlight FISH FINDER or move the ShuttlePoint knob to the right.
Figure 3.1.0 - Example of Fish Finder page selection by [MENU] on CP1000C
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