Furuno DFF-3D Operator's Manual page 15

Transom mount
For a vessel with an inboard engine, the transducer cannot be installed aft of the pro-
peller screw because of the turbulence created by the propeller ahead of the transduc-
er. Determine the mounting location considering the guidelines shown below and the
instructions on page AP-8.
• Select a location as far as possible from the propeller screw.
• Select a location where the propeller screw is not within 120° of the beam range of
the transducer.
Be sure to select the location considering these guidelines, to prevent echo noise on
the display.
The illustration below was created by the Airmar
Unit of measurement
Top: millimeter
Bottom: inch
1. INSTALLATION
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Technology Corporation.
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