MANUAL, then press PWR to clear the menu. To adjust the sensitivity, follow the same steps used for adjusting sensitivity in auto mode above.
Bait school 
Fig. 1
Fig. 2
Fig. 3
Fish
arches
Fig. 4
These figures show results of different sensitivity levels on the same location. Fig. 1: Sensitivity at 98 percent, determined by Auto Sensitiv- ity. Typical of full auto mode. Fig. 2: Sensitivity set at 71 percent. Fig.
3: Sensitivity set at 47 percent. Fig. 4: Sensitivity set at 100 percent.
Grayline®
Grayline lets you distinguish between strong and weak echoes. It al- lows you to tell the difference between a hard and soft bottom. For ex-
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