Humminbird HELIX 9 Operation Manual page 42

Adjust the Fish ID Sensitivity
Use Fish ID Sensitivity to adjust the threshold used for detecting a fish with Fish ID+. To display only larger species of fish as fish
symbols, select a low setting. To see smaller fish species or baitfish, select a high setting. Fish ID+ must be turned on to enable this
menu.
1. Turn on Fish ID+.
2. Main Menu: Press the MENU key twice. Select the Sonar tab.
3. Select Fish ID Sensitivity.
4. Press the RIGHT or LEFT Cursor keys to adjust the setting.
1 = low sensitivity (large fish only)
10 = high sensitivity (All: small fish up to large fish)
Turn on the Fish ID Alarm
To receive an on-screen alert when a fish is detected, turn on the Fish ID Alarm. Fish ID+ must be turned on to enable this alarm.
1. Turn on Fish ID+.
2. Main Menu: Press the MENU key twice. Select the Alarms tab.
3. Select Fish ID Alarm.
4. Select one of the following icons:
Sonar (2D)
Off
All
Large/Medium
Large
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