How to Read Lowrance Sonar

In 1957, Lowrance released a sonar detector. The Lowrance Elite FS and Lowrance Hook Reveal are two of the most recent versions. Lowrance also has wifi capabilities. It includes 4 G Breitband wifi, and it makes finding fish easier.

CHIRP sonar uses a range of frequencies. This is different than traditional sonar. It makes sure that it delivers the best underwater image.

Lowrance fish finders continues to create new technologies. They aim to provide more correct data and high-quality images than ever before. (Learn How To Debone Trout)

lowrance sonar

A Guide To Read a Fish Finder Screen

On its fish finder display screen, Lowrance’s fish finder displays much information. The information gathered from the input is shown on the right side of the screen. Then, it will turn to the left. The fish finder may also display the water temperature and current water speed.

It depends on the type you have. When you view the fish, the climbing scales along the side will help you determine their depth. Before viewing, it’s a good idea to switch your phone off. It would help if you also familiarize yourself with your device’s features. You should also know its settings.

The basic principles of reading Lowrance sonar technology is easy. It is the same as reading any other sonar fish finder.

You should be able to read your new gadget if you’ve ever owned a fish finder before. You can do it even if it is a different brand.

If this is your first time using a Lowrance fish finder, stick with us. We will show you how to read one and use it to catch both big and small fish. (Find the Best Fish Finder For Kayak)

The Basics of Fish Finder

You may be wondering: How do fish finders work? This will help you in understanding the fish finder basics.

The first thing to know about most fish finders is that they use sonar technology. It provides good information about what’s under your kayak or boat. Receiving and sending sonar signals is the basis of modern fish finders.

A fish finder’s transducer delivers sonar sounds (known as a sonar cone) down into the water. When those sonar signals clash with an object, sound waves are bounced upwards. Then, the fish finder’s receiver decodes the signals. Then, it displays them as shapes on the screen.

In most cases, a fish finder’s sonar beam is narrow. This means you’ll only be able to see what’s under your boat. But, once you understand how to use this information, you’ll have an advantage in fishing. This device only work in the water, not in the air.

Once you’ve figured out how to read your fish finder, you’ll be able to tell how deep the water is under your boat. You can also tell the temperature, what structures are under you, and where the fish are. Also, you will be able to assess the fish’s size.


What Is the Best Way to Read a Fish Finder Screen?

On the display of your Lowrance fish finder, you’ll find much information that you need. This is how you read lowrance fish finder.

The majority of it will be nothing if you don’t know how to read it or what to do with it, so it’s up to you to learn. This is how you read a Lowrance fish finder.

Fish Arch

Fish will appear as arches on your display screen when you see them.

But, they will not always appear to be a full arch. You may also encounter partial or half arches.

Remember that the screen displays a slice of the water column at a certain time. It shows the most recent data on the right. Take note of the details in the water column to figure out where the fish is.

The arch length indicates the times the fish remained within your transducer beam.

A partial or half arch signifies the fish did not swim the entire length of the arch.

The fish on your Lowrance fish finder will be color-coded. This will help you recognize which ones are the biggest. Please take note that the color will depend on what setting you have it on.

So, check for the thickest fish arches if you’re using an earlier grayscale model. (Learn How To Tie Fishing Line)

The larger the fish, the thicker the arch.

Baitfish seem like a series of dots or dashes on your screen, but they are hung above the bottom.

Structures in the Water

Check whether any underwater structures, such as plants are attached to the bottom. This is to determine if they are not a school of fish.

It’s most likely an undersea structure if the echoes or markings are connected to the bottom.


The water’s bottom will be color-coded to make it easier to know solid or firm bases from murky, muddy ones.

A solid bottom will have a thicker, darker line. But, a soft bottom would have a narrower, lighter-colored line.

What is the best way to look for fish?

Fish Dots vs. Fish Arches

Fish appear on 2D sonar fish finders (including CHIRP fish finders) as arches. In the screen, these fishes appear with their apex pointing upwards on the screen. You will see if the fish are in motion. They travel through the sonar cone. Depending on where in the cone the sonar signal strikes them, they throw back a different signal. This causes the arching effect.

Fish appear as dots rather than arches on down imaging fish finders. Because fish look like arches in traditional sonar imaging, this is the case.

Once you’ve mastered detecting fish dots or arches on your device, it will be easy to find fish. You’ll also see where the location of your bait is in the water. Also, you will know if any fish are around.

The larger the arches on a fish detector, the more likely you will catch a huge fish. You should keep in mind that the range setting of your fish finder. The settings will also affect the size of the arches.

To know the fish size, you need to check the settings you see on your fish finder screen. Even with a little experience, you can do it. With further experience, you’ll be able to know between signals. You will know if it was sent by fish or those emitted by rocks and plants.

Fish Icons

Fish ID technology is available on some fish finders. The fish finder will convert sonar signals into fish ID technology generated icons. They will show it on the display screen.

But, the problem is that technology isn’t always 100 percent precise. This means that the fish finder will choose certain items as fish that aren’t while missing other fish signals.

How to read side imaging vs. down imaging signals

Down imaging works by sending an narrow sonar cone. It sends down into the water, allowing you to see what’s under your boat in incredible detail. This helps in the interpretation of sonar. It’s also not the same as the traditional sonar used by experienced fishermen.

Side imaging uses two sonar cones that are transmitted sideways to the left and right of your boat. So, it assists you in gaining a better understanding of the undersea land on each side of your boat.

How to Catch Fish with a Lowrance Fish Finder

Learning how to read a Lowrance fish finder is simple now that you know how to read a Lowrance fish finder.

They’re user-friendly. Plus, the majority of the newer versions feature touch-enabled screens. This makes using the menus even easier.

Getting Fish

You may use your new fish finder to identify the proper depth to fish, a nearby structure to fish, or even a school of fish.

Knowing what sort of bottom the water has is also a great help if you’re looking for fish species.

The behaviors of the fish will alter as the season progresses.

The better you understand your prey, the better you can use the information offered by your fish detector.

Once you have fish on your display screen, you may check their depth and position your bait before them.

Range of Depth

Great news! Your fish finder will get your depth range for you.

Remember to keep this in mind because it will alter the size of the fish on the screen.

You also can change the depth range of the water if you only want to see the top part of it.

You can zoom in on many depths. So, if your fish prefer 15 feet, you might configure it to look at 12 to 18 feet.

This feature will give you a proper view of this section of the water.


The appropriate sensitivity will be determined by the depth of the water. It will also check the murkiness of the water.

The better the sensitivity, the smaller the fish it will be able to detect.

But, if the water is murky, it will be impossible to raise it too high.

Your screen will be filled with too much activity to make sense of. This is because the transducers may provide wrong signals due to all the algae in the water.

In these situations, lower your sensitivity until most of the clutter is gone.

Then go about your business as usual.

To discover more about the Lowrance fish finder you have, read your product handbook.

There might be more information they can provide that will assist you in catching more fish.

How can I use a fish finder to estimate the size of a fish?

On the screen, a huge fish appears like a complete, thick-curved arch. Small fish look to be somewhat formed. Small fishes are not quite as robust or as flat as larger fish.

By dropping a huge bait near large fish, you may focus your fishing activity on them with little effort.

To read CHIRP sonar for fish findings, the CHIRP sonar has a website to help you out. A school of baitfish is a good area to launch your bait into the ocean.

weed beds

What’s the best way to discover fish in weed beds?

In around 9 meters of water, traditional sonar scans reveal a rocky land. The regular Sonar picture could explain it to the users. But, the Structure Downscan shows it. O

On the left side, you have a fish. On the weed bed, you have tiny fish. You should also check from the top, since the orange/purple dots will appear.



Now, I tell you to get on your kayak and put what you’ve learned in this article into reality. You already know how to read Lowrance fish finder.

With practice, it is easy to identify schools of baitfish. It also makes detecting cunning fish hiding on the bottom becomes simple.

When you’re used to having a fish finder on board, you’ll feel a little different if you don’t have one. Happy fishing!

How to Read Lowrance Sonar (1)