How to Find Bass on a Fish Finder

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A fish finder is one of the numerous bass fishing technologies that help you locate bass throughout the year. It is a relatively straightforward way to determine the bass’s anatomy, catch more fish, and become a better angler. For it to be effective, you have to know how to find bass on a fish finder.

How to Find Bass on a Fish Finder

Fish finders employ SONAR devices to locate fish, objects, and structures in water by emitting sound waves. To comprehend the core functioning mechanics of this technology, it is necessary to be familiar with the device’s primary components.

Major Components of a Fish Finder

A fish finder’s major components are its:

  • Display, and
  • Transducer
An image of a fish finder for tuna

The display is used to project converted sound wave data with visuals of the fish’s position and water depth. Typically, screen display sizes vary from 4 to 10 inches; the bigger the screen, the more information that is displayed.

On the other hand, the transducer emits sound waves via water and delivers signals back to the display. It serves primarily as the SONAR (Sound Navigation Ranging) component of a fish finder. If a generated sound wave collides with a fish, object, or structure, it is reflected back to the transducer.

Due to the fact that sound waves move fast, a transducer may transmit several signals in sequence at the maximum possible rate. This technology may also offer a wealth of information, like:

  • The fish size
  • Object’s water depth, and
  • Position of the fish, among others

Basic Guidelines for Using a Fish Finder to Find Bass

Using this gadget to seek bass reduces pointless and laborious driving around a body of water. It guarantees precision and makes bass fishing comparatively simple compared to conventional reels and rods. Let’s find out how to utilize this equipment.

Step 1: Configure Your Settings

Start with simple, precise, and consistent settings. Numerous bass anglers, both professionals and newbies, use this device for the first time using the automatic settings. Although it may work the first time, you must manually adjust these parameters in order to easily capture bass and increase overall performance.

Ensure that you adhere to the fundamentals throughout the manual configuration. Have a dependable system and understand how to change the depth and range, as well as how to locate bass between structures. This simple arrangement will expedite your bass searching as opposed to unknown sophisticated options.

Step 2: Adjust the Sensitivity

When bass fishing with a fish finder, you should increase the sensitivity so that the transducer does not generate indications based on minute water movement. To reach the ideal sensitivity, you must disable the automated mode and set it to 100 percent manual.

Afterward, gradually turn it down until you see prominent bass arches and specific information on the display. We’ll further discuss sensitivity as we proceed.

Step 3: Set your Display

Select what works best for you on display. In deeper parts of water, zoom in and out to get a sharper view of bass. Advanced options allow you to change the fish arches into fish icons. Overall, your display is of the highest quality and to your liking.

An image of a person fishing

Step 4: Spot Irregularities in the Water

Using a fish finder, you are sure to locate your target species if you see any type of irregularity in the water. Beyond the shoreline, obstructions like boulders, fallen trees, and logs are excellent bass hiding locations that may be detected by this technology.

Step 5: Locate the Bass

Lastly, identify your bass using sonar within the previously described zones. Additionally, you should pay attention to ledges and drops. Moreover, if the model of your gadget has a water temperature feature, utilize it to your advantage and focus on warm areas. Bass often cluster in warm waters, particularly during the spring.

Major Tips for Using Fish Finders

Now that you are familiar with the key components of this device, let’s discuss the fundamental step-by-step instructions required to use one. There are three components to using this device:

  • Installing
  • Setting, and
  • Understanding the information on the device’s screen display.

Installing a Fish Finder

Installing this gadget correctly prior to usage is the first stage in using the gadget. To do this, you must start with the manufacturer’s manual detailing the setup procedures. Additionally, you may look up installation instructions on YouTube. However, certain models of this device need expert installation, so seek assistance if necessary.

Here are major tips for installing this device:

  1. Utilize a transducer mountain board to ensure that the transducer is balanced, as is typical for professionals. The appropriate installation location is along or near the boat’s centerline.
  2. Avoid installing the transducer close or behind turbulence-generating structures, such as the engines, motor, or strakes.
  3. Install the transducer far from electrical equipment that might induce interference.
  4. Next, separate the cables of the device from other wires and curl the excess wires into a figure 8 and then secure them with a zip tie.
  5. Following the power source requirements outlined in the manual, connect the technology to a standard electrical source. Do not connect the device and trolling motor to the same power source.

Setting a Fish Finder

Right after installing your gadget, you have to proceed to settings and configuration on the device. This has a broad scope that includes software updates, feature configurations, and other configuration capabilities.

Here are the necessary settings needed for using this device:

Installing and Updating the Device Software

Like other contemporary technical devices, the operation of the fish finder is dependent on software and software upgrades. You may simply install and update the device’s software by following the manufacturer’s manual’s step-by-step instructions.

For a straightforward software update, download the latest software version of your gadget onto an SD card, insert it into the SD card slot, and turn on the device. Ensure you link your device to the manufacturer’s website so as to get current software updates as soon as they become available.

An image of one of the best fish finder for tuna
Sonar Frequency

The sonar frequency influences the resolution, scanning breadth, and scanning depth of this device. They vary according to the boat attached to the transducer and the fishing location. Consequently, the sonar frequency on a lake will vary from that on an ocean.

  • Higher Frequency: Locating smallmouth bass and other tiny marine creatures in shallow seas requires a high frequency. At higher frequencies, it is simple to detect fishes and structures; the resolution is often high and the scanning beam is always narrow and shallow.
  • Low Frequency: Low frequency aids in the identification of largemouth bass and other big marine organisms. At low frequency, the resolution is often poor, resulting in pictures with little to no detail and a hazy appearance. The scanning beam is larger and longer, so it can examine deeper water regions.

A configuration with greater sensitivity will help in the detection of bass in both shallow and deep water. Therefore, it is recommended to adjust your sensitivity to a level that gives a pristine picture of bass.

Turn off the automated mode on your device and manually tune the color, zoom range, brightness, and scrolling speed to get the optimum sensitivity level.


The modes available on most fish finders include:

  • Underwater
  • Topwater
  • Saltwater
  • Freshwater
  • Shallow water
  • Troll fishing
  • Ice fishing, among others. 

Related Question

What Is the Best Fish Finder for Catching Bass?

The Garmin Echomap UHD is one of the finest fish finders for bass fishing; it has extensive mapping capabilities in both saltwater and freshwater and numerous sonar views. In addition, its resolution of 800 by 480 pixels is incredibly clear.


Bass fishing using a fish finder is one of the most sophisticated and contemporary methods of fishing. Ensure you follow the guidelines in installing, setting, and locating bass, and you’re sure to get a good haul.