How to Use a Humminbird Fish Finder: Important Details

What is a Humminbird fish finder? No idea? Well, it is a device that mounts directly to your boat, to help you see how the land lays under water. However, its main role is to help anglers locate fish but before it can do that, you must know how to set it up and use it.

Humminbird is a brand that manufactures fish finders and they all comprise a control head and transducer. The transducer’s job is togather electrical energy and convert that energy into sound waves. The control head displays those sound waves.

While the control head actually displays the sound waves, it also contains all the controls for the device. Therefore, you should have the control head mounted where it is accessible and can easily be seen.

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The Way to Use a Humminbird Fish Finder

Installing the Fishfinder

Once you pick a location to mount your fish finder, you will have drill holes to facilitate the mounting. Do it in the following steps.

  • Position and hold the mounting stencil in the place where you intend to set up the transducer.
  • Spot the holes on the transom.
  • Drill both holes using only a 5/32 inch drill bit.
  • Assemble the transducer together, and place it on the mounting bracket.
  • For extra support, add silicone sealant to the mounting holes.
  • Fix the transducer in place.
  • Modify the transducer position as required.

After you are done, run the transducer to the control head. Normally, either placing the cable inside the channel that holds your wires or the conduit can do this. If you realize that your cable is too short, you can always contact Humminbird to get an extension cable.

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Simulator Mode

Once you are done installing your fishfinder, test if it working by going with it into the water. You can do this with a trailered boat but it is best to be on the water. After you confirm that the device is functioning, you can then use the simulator to learn how to operate the device.

The way the simulator works is by enabling you to run commands like you are really operating the fishfinder.

You can access the simulator using two ways. One, you can either press the Power button until it begins chirping. This ordinarily takes about three seconds. Two, you can select the simulator option if the unit is already on. Simply turn the unit off when you are ready to exit the simulator mode.


Each unit is unique in its own way but all Humminbird units generally have the following displayed on their screens.

(1) Speed:

This indicates the actual speed of the boat. 

(2) Temperature:

The temperature on the surface of the water.

(3) Depth:

This shows the present depth of the water. There are some units with alarms that go off if the water becomes too shallow.

(4) Depth Range:

Your unit may display diverse depth ranges with zero indicating the surface of the water. A horizontal line at the top of the screen is what represents the zero line or water surface.

(5) Bottom:

A key feature of these fishfinders is that you can see the configuration of the water bottom. This may include differentiating rocky bottom from hard bottom depending on your unit. Generally, the rocky bottom contains small bumps that differ in density. If the bottom comprises of mud or sand, the line will appear really thick.

(6) Fish ID:

Remember, the key purpose of a fishfinder is to locate fish. As such, it is important for you to quickly spot individual or groups of fish. If the fishfinder establishes that a sonar return matches a fish, you will get a fish symbol on your screen. Small groups of fish are normally signified by little dots.

These are the main things that most control boards will display. However, your unit may have additional items displayed like thermoclines and structure.

There are also different menu functions that allow you do to things like alter the sensitivity of the sonar. You can modify the outline of the menu. Many Humminbird fish finder units have a light that controls the taillight display.

Final Thoughts

For anglers, the most significant menu function has to be the fish alarm. You can program this function to go off when the fishfinder traces fish in the water. You can pick from three diverse fish sizes. For instance, if you want the alarm to go off only when there is big fish in the region, select the “Big Fish Only" option and all you will have to do is drop your line in the water.

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