Proper adjustment of a transom mount transducer is critical for achieving optimal performance. The following
- The back of the transducer needs to be lower than the front of the transducer so that the water impacts the face of the transducer cleanly. To adjust: The bracket is designed for a standard 13° transom angle. To determine if the plastic shim is needed, position the transducer at the desired location. Using a straight edge, compare the underside of the transducer relative to the underside of the hull. The stern (trailing edge) of the transducer should be 1/16" - 1/8" (1 - 3 mm) below the bow (leading edge) of the sensor.
- The leading edge of the transducer must be 0 to 1/8" below the hull. See the images below:
Correcting the above issues will fix a majority of performance-related issues. This information can also be found on page 8 of the product manual: