Humminbird 580, Operation Manual

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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 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, and the Big Digits 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, and the Big Digits 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.
To 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)