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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.
DualBeam PLUS
TM
Sonar models represent targets detected in the 200 kHz narrow beam as Shaded
Fish Symbols, and represent targets detected in the 83 kHz wide beam as Hollow Fish Symbols.
When Fish ID+
TM
is turned off, the 700 Series™ 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
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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 narrow beam sonar returns will stand out from the paler 83 kHz wide 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 83 kHz
beam, the 200 kHz beam, or the 200/83 kHz beam. (200/83 kHz, 200 kHz, 83 kHz,
Default = 200 kHz)
