How to install fish finder in a marine boat?

fishing kayak rigged with fish finder and transducer in bottom of hull

What is a fish finder?

A fish finder is a cool instrument. As the name indicates fish finder is used to locate fishes underwater. The instrument was first used in Australia. It is very simple; it emits pulses and measures its reflection, and then produces an image on the screen, of what is under the water level. The equipment can be used for both sport and commercial fisherman.

At present, a fish finder is an integrated unit of a variety of components. They have inbuilt GPR’s system, which not only locates soles of fishes but also directs you to the point where there is the maximum density of fishes.


What are the types of fish finder?

Before you decide to buy, a best fishfinder GPS combo you must know that working with each and every type of fish finders.

  • Standalone: these are best suitable for small personal boats, in a moderate area of the water body. This system is not equipped with GPS. You can just see what is underwater, with the minimum cost.
  • Chart plotter: best for mid-sized boats, with a pilot house and also Installed with GPS system. It can be also fitted with transducers for more, enhanced performance.
  • Networked system: it is the ultramodern version of fish finders. Commercially people use it for fishing. It has preinstalled data, radars, GPS charts, satellite radio and many more. Some fish finders can also be controlled with Bluetooth or smartphones.

Steps to install fish finder

By now you have understood, what type of fish finder is perfect for your boat. The fish finder must be installed perfectly, so as to get the optimum result and an amazing experience.

  • fishing kayak rigged with fish finder and transducer in bottom of hullPlace of transducer:

This is the crucial part of the instalment. The working of the fish finder depends mostly on the position of the transducer. You can fit it easily, with home equipment, by cutting a hole in the surface. If you don’t have any idea about the instalment, then you must take help from a professional. The transducer must be submerged under the waterline. The propeller must be enough far so that the turbulence can’t disturb the working of the propeller. Check that the transducer does not hit any hard surface.

  • Wiring:

Before you fix the transducer into the surface, measure the length of the wire. Check that the length of the wire can travel to the main unit and then to the battery. If you fall short with wire, then shift the place of the transducer. Don’t cut down the wire, if there is more wire. Just coil up the extra amount of wire. Don’t run the wire along the engine’s wiring. This will cause distortion in the working of the transducer.

  • Fixing:

If you find everything is alright, then drill holes in the round to fix the transducer. Use the mounting stand to fix the position. It is a good practice to apply, silicone sealant. Clamp the wires on every 20 inches.

  • Place the fish finder:

The mount of fish finder must be done with great care. The steps are elaborately described in a user manual. Once you have done all these things, leave it for complete drying.