Sensitivity - Lowrance X51 Installation And Operation Instructions Manual

SENSITIVITY

Sensitivity controls the unit's ability to pick up echoes. If you want to
see more detail, try increasing the sensitivity, a little at a time. There
are situations when too much clutter appears on the screen. Decreasing
the sensitivity can reduce the clutter and show the strongest fish ech-
oes, if fish are present. As you change the sensitivity setting, you can
see the difference on the chart as it scrolls.
Bait
school
Thermocline
with fish
Fish
arches
Fig. 1
Fig. 3
These figures show results of different sensitivity levels on the same
location. Fig. 1: Sensitivity at 87 percent, determined by Auto Sensitiv-
ity. Typical of full auto mode. Fig. 2: Sensitivity set at 50 percent. Fig.
3: Sensitivity set at 20 percent. Fig. 4: Sensitivity set at 100 percent.
You can change the sensitivity level whether you are in Auto Sensitiv-
ity mode or Manual Sensitivity mode. The adjustment method works
the same in both modes, but it gives you slightly different results.
Adjusting sensitivity in Auto Sensitivity Mode is similar to manually ad-
justing a car's speed with the accelerator pedal while cruise control is on.
You can tell the car to run faster, but when you let off the gas the cruise
control automatically keeps you from running slower than the minimum
speed setting. In your unit, auto mode will let you increase sensitivity to
100 percent, but the unit will limit your minimum setting. This prevents
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Fig. 2
Fig. 4