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56
Fish ID+
TM
Fish ID+
TM
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. Three different fish size icons represent the intensity of the sonar return, and provide an
indicator of relative fish size.
Targets detected in the 200 kHz narrow beam are represented as Shaded Fish Symbols, and
targets detected in the 83 kHz wide beam are represented as Hollow Fish Symbols.
When Fish ID+TM is turned off, the Fishing System shows only the raw sonar returns on the
display. These returns will often result in "arches" forming on the display, indicating potential
targets. Due to the transducer beam angle, the distance to a fish decreases as the fish moves into
the beam, and then increases as it moves out again, creating a Fish Arch when this distance
change is shown on the display. Boat speed, chart speed, and the position of the fish within the
sonar beam greatly affect the shape of the arch.
T
o turn Fish ID+™ on or off:
1. Highlight Fish ID+ on the Sonar main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to turn the Fish ID+TM setting On or
Off. (Off, On, Default = Off)
Transducer Cone and Fish Arches
200 kHz, Narrow Beam Shaded
Fish Symbols
83 kHz, Wide Beam
Hollow Fish Symbols
55
Beam Select
Beam Select sets which sonar returns from the transducer
will be displayed on the screen.
When set to 200/83 kHz, the returns from both beams are blended by starting with the 83 kHz
wide beam return, dimming it, and then overlaying it with the 200 kHz narrow beam return. The
darker 200 kHz wide beam sonar returns will stand out from the paler 83 kHz narrow beam sonar
returns. The Split Sonar View continues to display the sonar returns from each beam in their
respective windows. The blended information is shown in the Sonar View, Sonar Zoom View and
the Big Digits View. The RTS® Window in the Sonar View and the Circular Flasher View will only
show the returns from the 200 kHz narrow beam.
When set to 200 kHz, only the returns from the 200 kHz narrow beam will be displayed in the
Sonar View, the Sonar Zoom View, the Big Digits View and the Circular Flasher View. The Split
Sonar View will continue to display returns from both beams in their respective windows. The
RTS® Window in the Sonar View will display the returns from the 200 kHz narrow beam.
When set to 83 kHz, the returns from the 83 kHz wide beam will be displayed in the Sonar
View, the Sonar Zoom View, the Big Digits View and the Circular Flasher View. The Split Sonar
View will continue to display returns from both beams in their respective windows. The RTS®
Window will display the returns from the 83 kHz wide beam.
T
o use Beam Select:
1. Highlight Beam Select on the Sonar main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to select either the 200 kHz beam, the
83kHz beam or the 200/83kHz beams. (200/83 kHz, 200 kHz, 83 kHz, Default = 200 kHz)
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