Xtreme Depth Sonar

(Xtreme Depth Series™ models only [778c HD XD])

Your 778c HD XD Fishing System uses the XD transducer to provide extreme depth coverage with DualBeam PLUS™ technology.

The Xtreme Depth sonar beams can be operated at two frequencies: 50 kHz (74°) and 200 kHz (20°). The wide, 50 kHz beam transmits at a low frequency to provide greater depth coverage, up to 2500 ft (762 m). The narrow, 200 kHz center beam transmits at a high frequency to provide maximum detail at shallower depths.

The DualBeam PLUS™ technology allows you to view the sonar returns blended together, separately, or side-by-side (see Sonar Menu Tab: Beam Select and Views for more information).

Depth capability is affected by such factors as boat speed, wave action, bottom hardness, water conditions, and transducer installation.

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How Sonar Works