Mounting Fish Finder: How to Do It Properly

Fishing Finder, as known as a fish detector, helps anglers recognize the typographic and other objects underwater. By emitting and receiving signals, it reflect everything within scan area on the screen. Therefore, with a fishfinder, users not only see living creatures but also can survey the geographical structure of water bottom. Mounting fish finder properly will help you get the best performance.

To set up this instrument on your boat, you need to mount the display and the transducer. The display screen shows the information that transducer receives. Although the mounting display is quite easy, transducer needs a large workforce to setup.  Don’t worry, after all, it is still an easy, handy job that anyone can handle, as long as you have a few tools like a power drill, some screws, and silicone sealants.

Mounting Fish Finder: Setup the binnacle mount

The display mount is also called the binnacle mount. Before starting the installation, you need to find the best location to mount the display on the boat. The location can be near the helm’s center or flat, smooth, and solidly spots that allow you to move the unit without hitting other items.

Once you have selected the right location, mark the mounting holes with a pencil and then drill them with a power drill. Before drilling, check if there are any already drilled holes that you can reuse. Otherwise, you will have to drill a hole in the back of the binnacle.

Setup the binnacle mount

Image source: BoatUS

To avoid wires abrading, make sure the holes are big enough for wires to go through. You might not need to lengthen or shorten the unit’s wires as long as their length is suitable. If you need wires extension, make sure you use boat cable with the same color. Most importantly, never remove any components of the manufacturer unless you want to void the warranty.

2. Setup the transducer mount

This is the most important step of the installation. There are three types of the Transducer: Transom-mount transducer, Through Hull Transducer, and In Hull Transducer.

Transom mount transducer is the most common type as it works in most circumstances and is easy to install. If you chose a Through Hull Transducer, you better install it in a professional way because the setup process is extremely complex.

Setup the transducer mount

Image source: eBay

In-hull, transducer is also easy to mount, but unfortunately, it may absorb some of the sonar wave, which is not as powerful as through hull transducer. Remember to choose a spot on the hull that is always submerged. This is because transducer must be in contact with the water all the times when the boat is trailered. Otherwise, it will not work. Additionally, make sure to mount the transducer horizontally and stable when the boat is running.

When you have found the perfect location, use a pencil to mark the holes for the transducer’s bracket mounting and drill them. Then use silicone sealants to cover up mounting screws and the holes in the transom to prevent leaks on your boat. Before you proceed mounting, you need to connect the wires to the dashboard. Otherwise, you might ruin the sealant just by a sudden hitch on them.

While keeping the bracket in position, screw the mount. Once you have put all the wires into the helm and reeve them through the drilled holes, roll off the excess wires together by tie wrap. Last but not least, you need to make sure all the power leads are in connection. Also, make sure the battery switch is off, and the sealants are completely dried. (drying time can take a whole week so do not be rush).  Additionally,  plug the transducer wires into the back of the fishfinder.

 plug the transducer wires into the back of the fishfinder.

Image source: The Marine Installer’s Rant – blogger

3. Final test

Once your transducer is in place, it is time to take a quick final test. Most transducers are much difficult to remove and replace. Therefore, you have to constantly check the noises, screen display, or all other errors to repair them just in time.

After everything is stable, you need to take your boat out on the water! Everything is up to your installation process. If you have done the setup properly, you will have the best performance out of it. If not, then you better read the manufacturer’s instruction or look it up on the internet right away!