Educational Articles » lowrance sonar

Find the fish, fish the fish and understand sonar with Aqua-Vu underwater camera Posted on November 14, 2019

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Understanding fish and trees on sonar Posted on October 13, 2019

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sonar and fish identification Posted on October 05, 2019

Using sonar, down imaging, Lowrance, Humminbird, and Aqua-Vu to study fish

 

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Finding Panfish in weeds Posted on July 19, 2019

Finding panfish in weeds is difficult, I will share one of my methods on this short video.

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by Bruce Samson under Aqua-Vu lowrance sonar

Fish or weeds? Posted on July 15, 2018

Just another example on why down imaging helps sonar interpretation. The weeds look similar to fish.

Weeds or fish 1

 In this one the fish look like weeds.

weeds or fish 2

Airmar TM150 setup Posted on May 28, 2018

If you use the Airmar TM 150 on a Lowrance I have found the Custom setting of single frequency 105 kHz gives me the best results. However you need to turn off the noise rejection to get those results.

The left side of this image has the default setting of Noise Rejection set at low and the right side is the Noise Rejection turned off. I don't know why this transducer doesn't perform well with the Noise Rejection on.

Lowrance TM 150 settings

Fish size on sonar Posted on October 30, 2017

Identifying fish size on sonar is very difficult since you can change the size with sensitivity adjustments or depth range. Fish look larger on a depth range of 20 foot than 100 foot. The size of a fish is determined by the color of the fish arch. For example if you have palette colors yellow, blue and red. The more yellow you see the bigger the fish. The thickness of the fish arch also determines fish size. How long the fish arch is just how long the fish is below the transducer.

In the image the black vertical lines show how long the fish is under the transducer and the green lines show the thickness of the fish arch.

fish arch

The best way to tell size is catch one the fish you see on sonar or use an Aqua-Vu camera.

The first example shows my bait dropping (green arrow), the bait is intercepted by a bass (red arrow) and the bass swims to the bottom (black arrow) and then I set the hook and catch him.

bass

This is the bass.

large bass on sonar

How about these fish. Needless to say I was excited when I found them but they didn't bite so I dropped the Aqua-Vu camera and was surprised what I found.

carp on sonarcarp on sonar 2

Watch video of fish

 On this screenshot is a 7.5 lb. northern pike, you can see when I set the hook and started bringing him to the surface.

Northern pike for sonar size educationnorthern pike

The last screenshot is smallmouth bass and I caught a few, this is a picture of one of them. One of my favorite fish to catch.

smallmouth basssmallmouth bass

This screenshot shows a 29.5 inch walleye after being released.

29 inch walleye29 inch walleye

I was lucky in my timing to collect good data to prove fish size on sonar.

Last but not least is what a 5 inch minnow attached to a sinker looks like with 1.5-2.5 lb. walleyes below it.

walleye and minnow size on sonar

 

Crappies on different sonar brands Posted on August 27, 2017

Learn how crappies display on different sonar brands.

Crappies are a much sought after fish and I get a lot of questions about what they look like on sonar. Crappies often suspend over open water, making  them  difficult to target. In this session I will show what they look like on different sonar brands.

Image #1 shows crappies on a 2D Garmin sonar using High Chirp.

Image #2 shows the same school with a Humminbird using the MEGA transducer on High Chirp.

Image #3 is the same school using a Lowrance TM150 transducer set at 105 kHz frequency.

Lowrance Crappie

Image #4 shows the same school with the Humminbird side imaging

Humminbird side imaging crappie

Next are 2 videos showing the Panoptix with 2 different transducers. The PS 30 looks down and to the side and the PS 21 looks to the side.

I use side imaging or the PS 21 to find the school when it moves since they see to the side and I use Minn Kota Spot Lock to sit on the school and vertically jig for supper.

PS 21 video

PS 30 video

3D StructureScan Training Posted on March 14, 2017

Short video on how to use the 3D StructureScan and how to adjust the features and settings.

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Identifying species with sonar Posted on November 19, 2016

Sorry, but it doesn’t work well. We can only make educated guesses.

I was looking for walleyes in the fall and noticed these nice fish at the depth I fish plus they were close to the bottom which is typical for walleyes.

But you bass anglers should read this tutorial so you can catch more fish.

I used small minnows and didn’t get bit so I up-sized to giant chubs (7 inches) and bass anglers know how much smallmouth love big minnows and I got bit.  My Go Pro works well for selfies.

I decided to put down the camera to see if any walleye were mixed in and nope, just lots of bass. So, I smoked them and released them so someone else can have the same pleasure.

Watch Video of the fish

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