- 1). Buy an echo sounding device. Older and cheaper models simply display the depth of the water beneath the vessel. More advanced devices are able to alert the user to the presence of fish and provide a representation of the ocean floor. These may also have a higher wattage, enabling sounds to travel further and emit more frequently.
- 2). Fit the transducer to the boat following the instructions provided by the manufacturer. Install the transducer in a place where there is a continuous flow of water over it at all times. In general, this means fitting it near the keel. Avoid placing it near structures that cause turbulence.
- 3). Fit the display unit where you can see and operate it while driving the vessel. Follow the manufacture's instructions for individual fitting techniques. Place the unit out of the way of rain, sun and salt water. Although echo sounders are weatherproof, the neoprene housing and various seals of the unit will decay through continual exposure to the elements.
- 4). Read the depth measurement on the screen of the echo sounder. Most screens use a liquid crystal display. This may be difficult to read in bright light, so create some shade if necessary. Bear in mind that the echo sounder may not be able to provide a useful reading if the vessel is traveling at high speeds over variable ocean floor.
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