To adjust sensitivity in Auto Mode:
Repeatedly press MENU until the SENSITIVITY menu appears. Make sure sen- sitivity is set to Auto, then press MENU UP to access the sensitivity scroll bar. Press ↑ to increase the sensitivity, ↓ to decrease it. When it is set at the desired level, press PWR to clear the menu. If you reach the maxi- mum or minimum sensitivity level, a tone sounds alerting you to the limits.
To adjust sensitivity in Manual Mode:
If you want to change the sensitivity in Manual Mode, turn off Auto Sensitivity. Repeatedly press MENU until the SENSITIVITY menu appears. Press ↓ to select MANUAL, then press MENU UP to access the sensitivity scroll bar. Press ↑ to increase sensitivity, ↓ to decrease it. When it is set at the desired level, press PWR to clear the menu.
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.
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