Bait
school 
Fish arches
Sensitivity at 71 percent (left). Sensitivity at 100 percent (right).
To change the Grayline level:
1.Press MENU until the GRAYLINE control bar appears.
2.Press ↑ to increase the level of Grayline or press ↓ to decrease it. If you reach the maximum or minimum level, a tone will sound. Press PWR to clear the menu.
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| Wider |
Thin or no | Grayline |
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| Grayline→ |
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A small amount of Grayline indicates a soft bottom (left), probably sand or mud. More Grayline indicates a harder, rocky bottom (right).
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