How to Understand Your Fish Finder’s Display

How to Understand Your Fish Finder’s Display

Nowadays, a fish finder is a must-have accessory for a vessel. It was quite expensive while invented first. But now, it seems to be reasonable, and most importantly, a bunch of boats has got one on board.

For a beginner, it is pretty much tough to explain the images that it shows on the screen; it is like you are trying to read foreign languages! Knowing the colorful blobs requires an adequate amount of knowledge, and this is why we are here to show you how to understand your fish finder's display.

What is a Fish Finder?

Basically, it is an electronic device that uses to detect fish under the water. In 1948, it was first developed in Japan. Earlier units were pretty much weighty and common yet provided a necessary piece of information to the angler.

As technology is progressing day by day, the digital LCD screen is paired with sonar instruments for providing a detailed picture. Recently, GPS technology is packed with a couple of fish finders that give abilities to chart the position as well as the direction.

Different types of Fish Finder?

If you understand the display of a fish-finder, you also need to know what different types there are. Three different types of fish finders-

How to Interpret the Screen?

Fish-finder is a piece of essential equipment for sea fishing. All your efforts may be in vain if you do not know how to use it. You do not understand the signals displayed on the screen, or you do not know the meaning, then you will be deprived of its benefits.

It is very important to know the on-screen signals well before buying a best fisherfinder. The following points will help you to better understand your fish-finder-

Explaining the Display

Understanding the fish finder's display is not that easy task, especially if you are not familiar with this particular screen. This is why proper knowledge is required to interpret the screen with ease.

The horizontal dimension of the screen corresponds to time and the vertical dimension to depth. The right corner (on the top side) directly represents the scenery under your boat.

Fish finder Display

In general, a passing fish seems to be like an arch on your fish finder's screen. On the other hand, a static type of fish will look like a solid line on your display.

You can identify the size of the fish by detecting the thickness of the arch. Larger fish is able to provide you a better signal rather than a smaller type of fish, which seems like a thicker arch with a yellow or red color in the center.

Tiny clusters of baitfish appear like little dots by depending on the setting of sensitivity. When it comes to color palette, the bottom side seams like a solid yellow or red band along with blue and green underneath it.

2D Sonar

You can found it in most of the fish finders. It pings a sound beam underneath the water, allows you to found the objects below. The screen shows temperature, depth rating, and boast speed as well.

The shape could be changed by different frequencies and depths of the search cone. 200 kHz is responsible for providing a detailed and narrow search cone. If you are fishing in the water that is not deep, a higher frequency can act well without a doubt. Lower frequencies, on the other side, work better in the water that is too deep.

How to Install It?

The way of installing a fish finder is quite easy, even though it is a bit tough to interpret it.

A couple of fish finders can be installed with a minimal amount of technical knowledge. And thankfully, it requires less hassle as well. When it comes to a portable fish finder, it is rather easy to install, just make sure to turn it on and go for your operations.

You will find some models that consist of handheld design; in that case, there is nothing you need to apply. A few models include a portable suction cup so that you can attach it with ease to your boats.

Expert Advice:

If you don't understand how to interpret the display, then you can take assistance from Fish ID, which is hands down, the best feature that shows the location of fish by providing a symbol.

It misinterprets from time to time, which is the disadvantage of using it. However, it is quite efficient for newbies who have zero knowledge concerning the fish finder's display.

Tips for reading Fish Finder

  • Be sure to read the manuals and follow the manufacturer's instructions.
  • Try to understand the model you are using through practice.
  • Use it first in places, you know. Try to understand how certain marked objects appear on the screen.
  • If you are familiar with your model, you can proceed to adjust the settings.
  • Change the color palette to your liking.
  • Adjust the impressibility of the transducers as well as the speed of the update. This will help you to get timely and accurate lessons.

Popular Fish Finder Brands

There are a lot of fish finder models on the market. It would be best if you were choosing a well-known brand rather than a cheap alternative. All brands have a basic model. If you have a low budget, you may choose them.

Famous brands will provide much better after-sales support and service options, regular map updates, and alternative models.

Some of the most popular fish-finder brands are:

  • Garmin
  • Hummingbird
  • Lowrance


What’s better down imaging or side imaging?

While side imaging can generally be a more massive proportional range than down imaging sonar, it wins the depth range.

What's helpful is that many manufacturers have released models that have both side and down imaging sonar, so you don't have to choose between two separate units.

Is chirp better than sonar?

CHIRP fish-finders transmit a longer pulse than traditional sonar, putting higher energy into the water column, with a proper broadband frequency range of up to 117kHz. A universal sonar transmits about one percent of the time, but CHIRP sonar’s send ascending pulses that are ten times high.

Who makes the best chirp sonar?

  • Garmin ECHOMAP Plus 73cv – High budget touch screen model with Down Vu and CHIRP sonar.
  • Low rance Hook2 9 Split Shot – Best Budget Down Scan fish finder.
  • Garmin STRIKER Plus 7sv – Editor’s Preference for best kayak fish finder.
  • HELIX 7 CHIRP MEGA SI GPS G3N – Best kayak fish finder – MEGA SI, and Dual Spectrum CHIRPer.

Content Toggle Headline 

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Wrapping Up

This is how you can understand the fish finder's display. As per our previous mention, it is quite challenging to interpret the screen if you are a beginner.

This is why we have made this write-up so that anyone can read the display with ease. If you still can't interpret, make sure to take assistance from Fish ID to make your job a piece of cake!

Newsletter Updates

Enter your email address below to subscribe to our newsletter


  1. I really wanted to write a simple remark to thank you for all the nice concepts you are posting at this site.
    My considerable internet search has finally been paid with excellent ideas to go over with my best friends.

    I ‘d say that most of us readers are very much lucky to dwell in a useful
    site with very many lovely individuals with good things.
    I feel quite lucky to have seen your site and look forward to some more pleasurable moments reading here.
    Thanks again for everything.

  2. Howdy I am so happy I found your site, I really found you by error,
    while I was looking on Bing for something else, Anyhow I am here now and would just like to say thanks a lot
    for a tremendous post and a all round thrilling blog (I also love the theme/design),
    I don?t have time to look over it all at the moment but I have saved it
    and also added in your RSS feeds, so when I have time
    I will be back to read a great deal more, Please do keep up the superb b.

  3. I wanted to post a word to appreciate you for some of the superb solutions you are placing at
    this site. My rather long internet look up has at the end of the day been rewarded with beneficial facts and techniques
    to share with my co-workers. I would believe that most of us site visitors
    actually are quite lucky to dwell in a superb place with so many perfect individuals
    with great opinions. I feel very much blessed to have come across your entire web pages and look forward to some more fun moments reading here.
    Thank you once again for all the details.

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.