Sonar Operations
As you can see from the quick reference on the previous page, basic operation is pretty easy, right out of the box. If you are a sonar novice, try operating the unit with the factory defaults until you get a feel for how it's working.
As you're learning the basics, there is one setting you might want to tinker with from time to time — 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 echoes, if fish are present. As you change the sensitivity setting, you can see the difference on the chart as it scrolls.
Fig. 1 | Fig. 2 |
Bait
school 
Thermocline
with fish
Fish
arches
Fig. 3 |
| Fig. 4 |
|
|
|
These figures show results of different sensitivity levels on the same location. Fig. 1: Sensitivity set at 87 percent. 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.
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