Humminbird 67 manual How Sonar Works, DualBeam Plus Sonar, QuadraBeam Sonar

How Sonar Works

Sonar technology is based on sound waves. The Matrix Fishing System uses sonar to locate and define structure, bottom contour and composition, as well as depth directly below the transducer.

Your Matrix Fishing System sends a sound wave signal and determines distance by measuring the time between the transmission of the sound wave and when the sound wave is reflected off of an object; it then uses the reflected signal to interpret location, size, and composition of an object.

Sonar is very fast. A sound wave can travel from the surface to a depth of 240 ft (70 m) and back again in less than ¹⁄₄ of a second. It is unlikely that your boat can "outrun" this sonar signal.

DualBeam PLUS™ Sonar

Your Matrix 67 Fishing System is shipped with a 200/83 kHz DualBeam PLUSTM sonar system with a wide (60°) area of coverage. DualBeam PLUSTM sonar returns can be blended together, viewed separately or compared side-by-side. DualBeam PLUSTM is ideal for a wide range of conditions - from shallow to very deep water in both fresh and salt water. Depth capability is affected by such factors as boat speed, wave action, bottom hardness, water conditions and transducer installation.

QuadraBeam™ Sonar

(with Optional-Purchase QuadraBeamTM Transducer)

Your Matrix 67 Fishing System also supports QuadraBeam™ sonar with the purchase of an additional QuadraBeam™ transducer. QuadraBeam™ sonar provides an extremely wide 90° area of coverage. QuadraBeam™ starts with two 45° 455 kHz beams for a continuous 90° of uninterrupted side to side coverage to 160 feet. These Side Structure locating beams reveal fish and structure to the left and right of your boat near the bottom. For structure directly below your boat, Quadrabeam™ uses DualBeam PLUS™ technology.

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