Humminbird 161 - Manual (Page 56)

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Fish ID Sensitivity
Fish ID Sensitivity adjusts the threshold of the Fish
ID+ TM 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 ID Sensitivity is used in conjunction with Fish ID+
TM .
Fish ID+ TM must be On for Fish ID Sensitivity to affect the ability of the 100 Series TM
Fishing System to identify sonar returns as fish.
To change the Fish ID Sensitivity setting:
1. Highlight Fish ID Sensitivity on the Sonar main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Fish ID
Sensitivity setting. (Low = 1, High = 10, Default = 5)
Real Time Sonar (RTS®) Window
RTS® Window sets the RTS® Window to either Wide
or Narrow, or turns it off in the Sonar View. The RTS® Window always updates at the
fastest rate possible and only displays returns that are within the transducer beam.
(See Real Time Sonar (RTS®) Window for more information.)
To change the RTS® Window setting:
1. Highlight RTS Window on the Sonar main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the RTS® Window
setting. (Wide, Narrow, Off, Default = Wide)
RTS® Window (Narrow) RTS® Window (Off) RTS® Window (Wide)