Fish Id Sensitivity; Real Time Sonar (Rts®) Window; Bottom View; Zoom Width - Humminbird 383c Operation Manual

531450-1_A - 383c_Eng.qxd 11/18/2005

Fish ID Sensitivity

Fish ID Sensitivity adjusts the threshold of the
Fish ID+ TM detection algorithms. Selecting a higher setting allows weaker returns to
be displayed as fish. This is useful for identifying smaller fish species or baitfish.
Selecting a lower setting displays fewer fish from weak sonar returns. This is helpful
when seeking larger species of fish. Fish ID Sensitivity is used in conjunction with
Fish ID+ TM . Fish ID+ TM must be On for Fish ID Sensitivity to affect the ability of the
300 Series™ Fishing System to identify sonar returns as fish.
To change the Fish ID Sensitivity setting:
1. Highlight Fish ID Sensitivity on the Sonar main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Fish ID
Sensitivity setting. (Low = 1, High = 10, Default = 5)
Real Time Sonar (RTS®) Window
RTS® Window sets the RTS® Window to either Wide or
Narrow, or turns it off in the Sonar View. The RTS® Window always updates at the fastest
rate possible and only displays returns that are within the transducer beam. (See Real
Time Sonar (RTS®) Window for more information.)
RTS® Window (Wide) RTS® Window (Narrow)
To change the RTS® Window setting:
1. Highlight RTS Window on the Sonar main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the RTS® Window
setting. (Wide, Narrow, Off, Default = Wide)
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RTS® Window (Off)
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Bottom View

Bottom View selects the method used to represent
bottom and structure on the display.
Structure ID® represents weak returns in blue and strong returns in red.
WhiteLine® highlights the strongest sonar returns in white resulting in a distinctive
outline. This has the benefit of clearly defining the bottom on the display.
See Bottom Presentation for more information.
To adjust the Bottom View:
1. Highlight Bottom View on the Sonar main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Bottom View
setting. (Structure ID®, WhiteLine®, Default = Structure ID®)

Zoom Width

Zoom Width adjusts the width of the Zoom window on
the Sonar Zoom View.
To change the Zoom Width Setting:
1. Highlight Zoom Width on the Sonar main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Zoom Width
setting. (Narrow, Medium, Wide, Default = Wide)
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