Humminbird 1197C SI - Manual (Page 137)

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. 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. 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 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 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 200 kHz beam, the 83 kHz
beam or the 200/83 kHz beam. (200/83 kHz, 200 kHz, 83 kHz, Default = 200 kHz)
Side View Frequency
(1197c SI Combo models only, Side Views only)
Side View Frequency allows you to select which frequency to apply to the side-looking beams (800 kHz
or 455 kHz).
To change the Side View Frequency:
1. Highlight Side View Frequency on the Sonar main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to select either the 800 kHz beam or the 455 kHz
beam. (800 kHz or 455 kHz; Default = 455 kHz)
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. Three different
fish size icons represent the intensity of the sonar return, and provide an indicator of relative fish size.
DualBeam PLUS™ sonar models represent targets detected in the 200 kHz narrow beam as orange fish
symbols, and represent targets detected in the 83 kHz wide beam as blue fish symbols.
200 kHz, narrow beam orange fish symbols 83 kHz, wide beam blue fish symbols
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