As a supplier of Center Console Boats, I've had the privilege of witnessing the evolution of marine technology firsthand. One of the most remarkable advancements in recent years is the fishfinder, a device that has revolutionized the way we approach fishing from a center console boat. In this blog post, I'll delve into what a fishfinder is, how it works, and why it's an essential tool for any serious angler.
What is a Fishfinder?
A fishfinder, also known as a depth finder or sounder, is an electronic device used to locate fish underwater. It works by emitting sound waves, also known as sonar, into the water and then analyzing the echoes that bounce back. These echoes provide valuable information about the depth of the water, the presence of fish, and the structure of the underwater terrain.
Fishfinders come in a variety of shapes and sizes, from simple handheld units to high-tech, multi-function displays that can be integrated into a boat's navigation system. They can be mounted on the console of a center console boat or installed through the hull for more accurate readings.


How Does a Fishfinder Work?
The basic principle behind a fishfinder is sonar technology. Sonar, which stands for Sound Navigation and Ranging, uses sound waves to detect objects underwater. Here's a step-by-step breakdown of how a fishfinder works:
- Transmission: The fishfinder's transducer, a device that converts electrical energy into sound waves, emits a short burst of high-frequency sound waves into the water. These sound waves travel through the water at a speed of approximately 1,500 meters per second.
- Reflection: When the sound waves encounter an object, such as a fish or the bottom of the lake or ocean, they bounce back towards the transducer. The time it takes for the sound waves to travel to the object and back is measured by the fishfinder.
- Calculation: Based on the time it takes for the sound waves to return, the fishfinder calculates the distance between the transducer and the object. This information is then displayed on the fishfinder's screen in the form of a graph or a digital readout.
- Interpretation: The fishfinder's software analyzes the echoes to determine the size, shape, and location of the objects underwater. It can distinguish between fish, schools of fish, and other underwater structures, such as rocks, reefs, and drop-offs.
Types of Fishfinders
There are several types of fishfinders available on the market, each with its own set of features and capabilities. Here are some of the most common types:
- Single-Frequency Fishfinders: These are the most basic type of fishfinders. They operate on a single frequency, typically between 50 and 200 kHz. Single-frequency fishfinders are suitable for shallow water fishing and are relatively inexpensive.
- Dual-Frequency Fishfinders: Dual-frequency fishfinders can operate on two different frequencies, usually 50 kHz and 200 kHz. The lower frequency (50 kHz) is better for deep water fishing, as it can penetrate deeper into the water column. The higher frequency (200 kHz) provides more detailed information about the underwater environment and is ideal for shallow water fishing.
- CHIRP Fishfinders: CHIRP (Compressed High-Intensity Radiated Pulse) fishfinders are the latest and most advanced type of fishfinders. They use a continuous sweep of frequencies instead of a single frequency or a fixed set of frequencies. CHIRP fishfinders provide more accurate and detailed information about the underwater environment, including the size, shape, and location of fish.
- Side Imaging and Down Imaging Fishfinders: These fishfinders use advanced sonar technology to provide a detailed view of the underwater environment to the sides and directly below the boat. Side imaging fishfinders can detect fish and underwater structures up to several hundred feet away from the boat, while down imaging fishfinders provide a high-resolution view of the area directly below the boat.
Benefits of Using a Fishfinder on a Center Console Boat
Using a fishfinder on a center console boat offers several benefits for anglers. Here are some of the key advantages:
- Increased Catch Rates: By helping you locate fish more easily, a fishfinder can significantly increase your catch rates. It allows you to target specific areas where fish are likely to be found, such as underwater structures, drop-offs, and schools of baitfish.
- Safety: A fishfinder can also help you navigate safely in unfamiliar waters. It provides information about the depth of the water, the location of underwater hazards, and the presence of other boats. This can help you avoid running aground or hitting other objects in the water.
- Efficiency: With a fishfinder, you can spend less time searching for fish and more time fishing. It allows you to quickly and easily identify productive fishing spots, saving you time and effort.
- Learning Experience: Using a fishfinder can also be a great learning experience. It allows you to observe the behavior of fish and the underwater environment, which can help you become a better angler.
Choosing the Right Fishfinder for Your Center Console Boat
When choosing a fishfinder for your center console boat, there are several factors to consider. Here are some of the key considerations:
- Frequency: As mentioned earlier, the frequency of the fishfinder determines its depth penetration and resolution. If you plan to fish in deep water, you'll need a fishfinder with a lower frequency (50 kHz). If you'll be fishing in shallow water, a higher frequency (200 kHz) will provide more detailed information.
- Display Size and Resolution: The size and resolution of the fishfinder's display are important factors to consider. A larger display will make it easier to read the information, especially in bright sunlight. A higher resolution display will provide more detailed and accurate images of the underwater environment.
- Features and Capabilities: Different fishfinders come with different features and capabilities. Some fishfinders offer advanced features such as CHIRP technology, side imaging, and down imaging. Consider your fishing needs and budget when choosing a fishfinder with the right features for you.
- Transducer Mounting: The transducer is the most important part of the fishfinder. It needs to be mounted correctly to ensure accurate readings. There are several types of transducer mounts available, including through-hull mounts, transom mounts, and trolling motor mounts. Choose a transducer mount that is suitable for your boat and fishing style.
Conclusion
In conclusion, a fishfinder is an essential tool for any serious angler fishing from a center console boat. It provides valuable information about the underwater environment, helps you locate fish more easily, and increases your catch rates. When choosing a fishfinder, consider your fishing needs, budget, and the features and capabilities of the device.
If you're in the market for a Center Console Boat or a Small Fishing boat, we're here to help. As a leading supplier of center console boats, we offer a wide range of boats and accessories to meet your fishing needs. Contact us today to learn more about our products and to discuss your specific requirements. We look forward to helping you find the perfect boat for your next fishing adventure.
References
- "Fishfinder Basics." Bass Pro Shops.
- "How Does a Fish Finder Work?" Marine Electronics.
- "Choosing the Right Fishfinder." Boating Magazine.
