Humminbird 531338-1_A, 47 manual Fish ID+, Fish Sensitivity, Fish ID 3D Reference

M47_Man_Eng_531338-1_A.qxd 12/13/2004 12:36 PM Page 40

Fish ID+™

Fish ID+™ uses advanced signal processing to interpret sonar returns, and will display a Fish Symbol when very selective requirements are met. When a fish is detected, a fish icon and its depth are displayed above the return that has been classified as being a fish. Fish symbols come in three different sizes to indicate the intensity of the return; in addition, there is a unique symbol set associated with each of the six beams, for a total of 18 possible fish symbols which can be displayed. The following graphic illustrates the different Fish ID+™ symbols and shows the beams with which they are associated. For instance, a hollow fish facing left indicates it was detected in the far left beam and a hollow fish facing right indicates it was detected in the far right beam.

When Fish ID+™ is turned off, the Fishing System shows only the raw sonar returns on the display.

To set Fish ID+™:

1.Highlight Fish ID+ on the Sonar main menu.

2.Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Fish ID+ setting. (Off, Symbol Only, Symbol+Depth, Default = Symbol+Depth)

Fish Sensitivity

Fish Sensitivity adjusts the threshold of the Fish ID+™ 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 Sensitivity is used in conjunction with Fish ID+™. Fish ID+™ must be set to either Symbol Only or Symbol+Depth for Fish Sensitivity to affect the ability of your Matrix™ Fishing System to identify sonar returns as fish.

To change the Fish Sensitivity setting:

1.Highlight Fish Sensitivity on the Sonar main menu.

2.Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Fish Sensitivity setting. (Low = 1, High = 10, Default = 5)

Fish ID 3D Reference

Fish ID 3D Reference selects the reference line style used in the 3D Sonar View. Up draws a line from the fish icon to the surface plane, Down draws a line from the fish icon to the bottom contour, and Both draws both lines.

To change the Fish ID 3D Reference setting:

1.Highlight 3D Fish ID Reference Line on the Sonar main menu.

2.Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Fish ID 3D Reference setting. (Surface, Both, Bottom, Default = Bottom)

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