Parts of the hull or equipment attached to the outer hull can block the SideVü sonar signal.

If you use a transom-mount transducer, for optimal results you should mount it at least 38 cm (15 in.) from the propeller and on the downside of the prop wash (Direction of Propeller Rotation).

If you use a thru-hull or in-hull transducer, you should consider the hull deadrise angle (Deadrise Angle).

• If your outer hull has a deadrise angle greater than 25 degrees and no flat center area, using a single transducer allows the keel to obstruct a side beam .

  Instead, you should use a pair of transducers, mounting one on each side of the keel .

• If your outer hull has a deadrise angle greater than 25 degrees with a flat center area near the transom, you can use a single transducer mounted in the flat area .

• If your hull has a deadrise angle of less than 5 degrees, you can mount a single transducer on the keel .

On a stepped-hull vessel, you should mount the transducer at the lowest point before the first step and away from other hull features that generate turbulence.