and adjacent to your boat, including the following items:

be positioned in the Sonar View to depth below the cursor.

Structure - where fish may be hiding.

200 kHz, Narrow Beam Shaded Fish Symbol

83 kHz, Wide Beam Hollow Fish Symbol

Thermoclines - layers of water with different temperatures that appear at different depths and different times of the year. A thermocline typically appears as a continuous band of many gray levels moving across the display at the same depth.

Fish - fish are displayed as arches and/or fish icons, and the unit can be set to alarm when a fish of a certain size is detected. When a target is detected and Fish ID+TM is on, a Fish ID+TM symbol with depth is displayed. The size of the symbol shows the intensity of the sonar return. The unit will clearly show schools of Bait Fish as "clouds" of different shapes and sizes, depending on the number of fish and boat speed.

Soft Bottom

RTS® (Real Time Sonar) Window

depth on the display and the depth of the bottom directly below the cursor. In addition, position is shown, the distance to travel to the cursor position and the bearing to the cursor position. position for later retrieval and use.

connected to the Fishfinder. If both devices are connected, then only the information from the GPS receiver

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Humminbird 580 manual Adjacent to your boat, including the following items, Structure where fish may be hiding