2D Sonar Mastery Course – Beginner to Advanced Fishfinder Training
Unlock the full power of your fishfinder with the 2D Sonar Mastery Course, a complete training program designed to take you from beginner basics to advanced on-the-water application. Whether you’re new to sonar or looking to sharpen your skills, this course gives you the knowledge and confidence to read your screen like a pro and catch more fish.
What You’ll Learn
This step-by-step course covers everything you need to know about 2D sonar, including:
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Getting Started – core settings, transducer setup, and screen interpretation for beginners.
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Sonar Sensitivity & Contrast – how to fine-tune your fishfinder for maximum clarity and detail.
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Frequencies Explained – the difference between low, medium, high, and 1000+ kHz for range, detail, and coverage.
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Identifying Fish & Structure – learn to recognize fish as arches or dots, separate bait from gamefish, and pinpoint brush, timber, and bottom hardness.
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Boat Speed & Chart Speed – matching your speed to sonar scroll for accurate readings.
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Advanced Techniques – spotting thermoclines, interpreting subtle signals, and maximizing your fishfinder in different conditions.
Who This Course Is For
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Beginners who want a clear, easy-to-follow introduction to 2D sonar.
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Experienced anglers who want to move beyond guessing at their screens and start making sonar-driven decisions.
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Tournament fishermen and serious weekend anglers looking for an edge in finding and catching fish faster.
Why Choose This Course
Unlike scattered YouTube clips or vague manuals, the 2D Sonar Mastery Course delivers a structured, start-to-finish system for learning sonar. Each module builds on the last, with real on-the-water examples, detailed screen recordings, and clear explanations that work for Garmin, Humminbird, and Lowrance units.
By the end of this course, you’ll be able to:
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Confidently adjust your sonar settings for any condition.
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Accurately identify fish, bait, and bottom composition.
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Apply advanced 2D sonar knowledge to put more fish in the boat.
beginner to advanced
Unlock the Full Potential of your 2D Sonar
This complete training program is designed to take you from beginner basics to advanced on-the-water application. Whether you’re new to sonar or looking to sharpen your skills, this course gives you the knowledge and confidence to read your screen like a pro and catch more fish.
This is a universal course so exact settings are NOT covered. Click here to pair this with your settings guide for complete mastery.
80 minutes
Everything from A-Z for 2D Sonar
This course consists of 11 videos with written overviews to help you master your sonar. This universal video course will be great for fishfinders of any brand like: Lowrance, Garmin, Humminbird, Simrad, Raymarine, and more.
What You'll Learn
Getting Started
How the image is moving and being displayed, screen interpretation for beginners.
Understanding the Cone
See exactly how the sonar beam is being sent out from the transducer to understand fish, bait, and cover.
Sonar Settings
Exact settings aren't covered but see how to fine-tune your unit for maximum clarity and detail.
Frequencies Explained
The difference between low, medium, high, and CHIRP frequencies and when to use each.
Boat Speed & Chart Speed
Learn to match your speed to sonar scroll for accurate readings.
Identifying Fish & Structure
Learn to recognize fish as arches or dots, separate bait from gamefish, and pinpoint brush, timber, and bottom hardness.
Wish I had watched this a while ago
See More Reviews From Real PeopleBefore this course, I honestly couldn’t tell the difference between a fish and a rock on my 2D sonar. Everything just looked like random blobs and arches and I kind of guessed at what I was looking at.
When he said how he looks for fish and what they look like, it clicked for me.
The on-the-water sections were probably the most helpful part for me, seeing him actually scroll over fish and explain it in real time clicked way harder than just screenshots.
The graphics and little animations he added showing where the fish are in the cone helped a ton too. I had been using the wrong frequency.
I went out last weekend after finishing the course and I was picking fish out so much easier. I wish I had something like this when I first got my unit.
an investment
Average Fishfinder Costs $1000+
Why spend thousands on equipment that isn't reaching its capabilities. Our 2D Sonar Video Course will make your investment work for you.
If You're Skeptical - Read This First
If your electronics were dialed in and you were happy with what you’re seeing,
you wouldn’t still be searching for answers.
I know how this goes. You’ve already:
- Spent serious money on your fishfinder
- Tried tweaking settings but you’re still not confident
- Watched YouTube after YouTube and every “expert” says something different
- Seen perfect demo screenshots online but your screen doesn’t look like that on the water
That’s exactly why Fishfinder Coach exists.
I’m on the water every week, guiding and testing on Garmin, Lowrance, and Humminbird units in real conditions, not factory defaults.
If you're skeptical, good. You should be.
Just know this, every single review on this site came from someone who felt exactly like you do right now.
When your screen finally makes sense, that skepticism turns into confidence real quick.
How to Watch This Course
Once you check out, log into your account using the same email you used at checkout.
The course will be available to watch directly on the website, no downloads needed.
Follow the full step-by-step guide here:
How to View Courses
Frequently Asked Questions
Don't see your question answered? Let us know at the bottom of the page.
Video Courses
These courses are viewed on the website.
All courses are viewed directly on the site.
Follow the step-by-step video here: How to View Courses
You can log in two ways:
- With your email (you’ll get a one-time password)
- Or with your Shop Pay credentials if you used Shop Pay at checkout
No — once you purchase a course, you have lifetime access.
PDF Settings Guide
How do I receive my settings guide?
You’ll get it in three ways:
- On the Thank You page after checkout
- In a follow-up email
- From your account dashboard when you log in
If you download it to your iPhone, it will show up in the "Files" app.
They are downloadable PDFs that show you exactly how to set up your fishfinder for the clearest, most effective sonar image possible — tailored for your specific brand and model.
Yes — as long as you use the same email you checked out with, your files will always be available in your account.
Absolutely. You can print the PDF at home for quick reference on the boat.
No— if you purchase the manual, you’ll already get the settings guide as part of it.
If you just want the settings section and not all the extra content, you can purchase thesettings guide by itself.
When you download a file on an iPhone, it usually saves to your Files app, not your Photos or Safari.
Here’s how to find it:
- Open the Files app
- Tap “Browse” at the bottom
- Go to “Downloads” or tap “Recents”
- Your PDF should be there and can be opened, saved, or shared from that location
Tip: You can also use the search bar in the Files app to look for the name of the file (e.g., “Humminbird Settings Guide”).
