The LAST Down Imaging Explanation You Will Ever Need | Fish Finder Sonar Instruction

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- Humminbird Helix 9 CHIRP G3: bit.ly/3QO02bM
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[@tentwo6350]

Bro I’ve been a professional IT instructor for over 30 years. I can say, having taught hundreds of classes, that you are a fantastic instructor/presenter.

[@BassTooMouth]

30 years deep and still says bro

[@MonkeM6]

@@BassTooMouth that’s what I said

[@fishflyexplorer]

Finally a very basic comprehensive explanation from a great teaching skilled angler. Thank you for the simple breakdown. Seriously!

[@scottankers6690]

This is the best explanation that I've seen.

[@alwaystinkering7710]

That's the most clear explanation I've seen. Very well done! One thing I'll add. The relative movement of the fish and boat are key to understanding the image. If that fish decided to hang out in that spot, you would see a very long fish because the unit would keep seeing and plotting it. That's the only time when you can be pretty sure where the fish is: when the boat is not moving and there's a long streak, it's parked directly under the transducer. And just like circling with the boat, one fish might appear as many if it's swimming around under your stationary boat. You're seeing the same fish repeatedly. That's a good clue that it's interested in your bait.

[@terrymcguirk7863]

Excellent - I have a Helix 7 and have been confused about some of the issues you address. You did a great job without extra info I don't need, but want to dig deeper into Humminbird capabilities. Fish rivers as well as lakes in Western PA/Eastern Ohio and Erie. I will keep watching and move on to other videos. Thanks again!

[@saultpancetta366]

Breaking it down so much that even an Auburn fan can understand it

[@540fishing]

I am a person that has felt I understood down image but I love to hear other Anglers points of view on how to use equipment rods and lures. Your videos are by far some of the most simplified yet spot on and informative videos on any platform

[@lauracoley108]

😂😂😂

[@mrdooley9974]

I resemble that remark

[@beanznwienaz]

You spelling Oklahoma wrong

[@LogicallyKnot]

No, you need a cow to explain it like this for an Auburn fan to understand it..... Mooooo

[@xshangheighx]

Never used a finder, and step dad just bought a new boat that came with one. This will help us learn so much! Thank you!

[@tonyjones9057]

So in general, when you locate a brush pile or some structure you wish to fish, you have to circle back to fish on that spot?

[@Jlen_inthewild]

Man I appreciate you and all the hard continuous work you put in for us knuckle heads trying to figure this out. Hands down you run the best channel on KZbin! Thanks again!

[@nicholasmusikoyo7609]

You're such a good teacher, thank you.

[@Ripp1n]

Finally videos for the North. Being from WI Johnny, you should do more videos on northern lakes, WI and MN lakes would be awesome.

[@HughButler-lb6zs]

By far the best explanation of down imaging I have seen. That explains why I find sonar more useful, because I am not getting the best image on my down imaging view. Since it is a series of pictures you must have the proper coordination between boat speed and scroll speed in order to get the best picture of what's below the boat. The question remains as to what the shape of the image field is. Sonar is a cone ( 3 dimensional). What about down imaging? In using a fish finder, you need to understand you are interpreting a 2 dimensional image on your screen in a 3 dimensional world. You have to have your mind right says the warden.

[@badatstuff3690]

By far the best explanation video for this topic. All the others I watched the person explaining assumed too much about how much I already knew.

[@KG-xf9ew]

Great video and well explained. There are too many crappy videos out there. This was excellent.

[@Jim-Stick]

I do salmon fishing with my Dad on west coast Canada. This has helped me a lot solidify my understanding. Your video is greatly appreciated!

[@jimmymeatwhistle4988]

Very thorough explanation of down imaging. Thanks so much.

[@haciendadad]

As usual, you did a top notch job explaining Down Imaging. I have that on my Garmin and I never use it, I will now. Thanks.

[@shogunn5065]

Incredible info! This is extremely helpful, but it still takes a trip to the water to really click in the brain. Thanks again

[@rowdybroomstick6394]

You can also use a throwable buoy marker to check the accuracy of the graph. As soon as you're making your second pass with the boat and are lined up to drive over the brush pile. As soon as you begin to see the brush pile coming onto the screen throw the marker just behind the motor a few feet. I mark my brush piles and structure this way as I feel it's more accurate than scrolling the screen back and asking the GPS to do it. Just hit the waypoint button the instant you begin to see the brush or structure your wanting to save. I do this usually on my second pass to make sure I'm not off to one side or the other. Although sometimes it may take several passes to get the best centered picture on the screen before I hit waypoint save. The gps method can work for bigger piles or if I have more obvious features on land I use to get my boat situated.

[@prynceal6762]

Good idea but if your in a body of water that has current (predominantly in Florida) that trick will be inaccurate.

[@SandmannOZ]

Doesn't work in the ocean... currents, winds, etc... unless you have a long rope and a weight on your bouy.

[@MrJohnB-qs6dp]

This was the best explanation on how Down Imaging I've seen!!👊🏻Great job Johnny!!!💪🏻 Stay Safe & God Bless!!!

[@kymora6203]

Glad you said the area below and not the area around your boat my deeper fish finder has a icon that looks like a diameter in a circle so I thought that meant it was the area around so now I know it's just a width of the beam and not some diameter of a cylindrical cone.

[@cornellbeard6905]

This is one of the best explanations I have found. I am brand new to fish finders, thank you very much you now have a new subscriber.

[@BritishBeachcomber]

All you need to know is that *the current boat position is always on the right hand side of the screen.*

[@boomchang1]

FANTASTIC VIDEO!!! I just got my first fish finder and small boat this takes so much guess work out. This link to your video should come in the box of EVERY FISH FINDER!!!! FRUSTRATION ENDED!!!! THANKS AGAIN!!!!

[@jimknowles5483]

So Johnny, of the three fish finders, which is the best at down imagining??

[@raykeogh1972]

Thanks a lot , as a guy who has not even been in the water yet that was great. Thanks for sharing RayK. UK. YNWA.

[@Brandywine-farm]

thank you sooo much. I bought one of these and I was so confused about all of it.

[@gwo8th211]

we used to sit over suspended deep fish and when they stayed under the boat which didnt always happen, it would echo streaks on the graph. We called it streaking. It was first done with a unit called a paper graph, maybe a Z15 or 16 model???? its been a while. I still like to DI with vertical fishing baits, I can get so entranced in it that you forget about the trolling motor and fishing line thing. The staring at screens all day didnt start with livescope by the way.

[@nelioma9242]

Why not putting that cam on front of the boat instead of the back

[@jsolo7576]

Most likely because the front of the boat comes up out of the water when moving. Plus, no where to mount it on the front

[@winstonrocco1981]

Always learn something new from this channel

[@bobnero19]

Outstanding treatment of this subject

[@SandmannOZ]

I think part of why it's confusing for many is because they don't really understand what they're looking at. The vertical scale IS a distance scale, but while the horizontal scale LOOKS like a distance scale it's not... it's a TIME scale, ie: what is under my boat now, what was under my boat five seconds ago, what was under my boat ten seconds ago, and so on. This is made more confusing because if you drive a straight line and a constant speed then the horizontal scale can be interpreted as a distance scale with the screen showing a "cross section" of the body of water, but relying on that to remain the case without accounting for variations in course and speed can lead to misinterpretation. Similarly your screen make show a bunch of fish across the horizontal, but if you're sitting still over a given point that could easily be the same one or two fish swimming around under your transducer repeatedly.

[@tommyhighhook3689]

Best Explanation yet!

[@lockbusters5672]

Very helpful! Thank you on behalf of us new to reading fish finders!

[@jgalicic]

Great info Jonny ! On my Simrad GO5 touch screen unit it will tell you how far away from an object that you marked on the graph until you clear the cursor. On my Helix 9 if you put the cursor on an object it will tell you how far away you from the object. If you have a trolling motor linked to your graph you can easily go back to the waypoint or cursor position that you marked.

[@vincentmerkel2632]

9:07 it can be described as a path alignment that creates an active profile. Your advice is to keep in mind any changes in your path. Of course, a linear path will be easier to read. Thanks for the tutorial. Cool stuff.

[@JohnPunch-h3m]

Man thank you so much. just wish I had found you sooner....... Could you do a video of how to find bluegill beds with down imaging my finder is a Garmin vivid 5cv and I'm having a hard time finding the bluegill beds.. thank you sir..

[@BassTooMouth]

This is my first explanation of this

[@phenglee6084]

Well done!!!! Keep these up.

[@GunHolsters]

Brilliant video. Broken down so even I can understand it.

[@MikaelWende]

Such a great presentation!

[@RexLake03]

This made is so easy to understand thank you

[@NasTimeAdventures]

Great format for helping people understand. Thanks heaps.

[@jamesoosterbaan556]

Good simple explanation

[@jamesadams1357]

We need more of these basic sonar videos Johnny! Thank you young man

[@michaeltrible3630]

Great lesson Jonny ,, A marker would help explain also. I'll use this video next time I go out, I know these videos have to take a lot of effort. Much appritated !!

[@davidtisch5237]

🔥video My son and I are learning together New to this stuff Valuable content plus I subscribe to the new channel I’m in ND

[@darrylstrand1953]

Awesome video Thanks I have a clear understanding now

[@jimmycleveland1373]

Excellent video Jonny. Thanks!

[@TheTaurus1988]

Subscribed to bass fishing declassified

[@justinhopkins5036]

You did a fantastic job. Thank you.

[@billtiritilli5271]

Just picked up a Nitro bass boat looking to update the electronics on a budget along with the trolling motor. Ultrex is my choice for motor but like to pair it up with something hummingbird suggestions.

[@tmyers4822]

Great information, I am new to this whole electronics and I appreciate it very much

[@hansselg1]

Thank you for making this video it was extremely helpful

[@brianswiger3374]

Just the video I needed. Thanks a million!

[@christianrobertadzic9321]

Hi! I really love the way you instruct the whole video. A great explanation. Thank you for your time to share. I'm using a Helix 12 unit exclusively for object searching, not for fishing. On my unit I have the option to record to the SD card the sonar data and I can load it to an app on y PC. but the recording is recording 2D and down imaging data. Most of time when I'm watching in real time, I use SI. Now, I'm interested, what are the yellowish area under the "river bottom" line? I mean, the area between the river bottom line and the real bottom of the screen? Thank you for any explanation, or maybe you have a vid for my question too.

[@davelerner8461]

Thanks Johnny, that really makes sense and you presented it very clearly, great video!

[@petercox7126]

Very helpful

[@chriswalls5831]

I gotta read these for some big cats or pay a guide put me on them but yes get this for my boat

[@shakeyhead0079]

Great video. I’m always learning on your channel. Thanks

[@casey2562]

you should check out some of Tom Boleys Walleye Snap jigging videos. Amazing jigging right under the transducer. Mind blowing stuff

[@shotbychristo]

This is a good video. Thanks for explaining this. It makes sense now 😊

[@danham3344]

Super cool video Jonny!

[@emilianobanzi9432]

Great job Jonny!

[@robertcook8187]

As always very good information on your video thanks and good fishing

[@brianharrington5593]

How close do you run the distance on your mapping? 20'. 50' 100' 200' 500' as this will make a difference on exactly where your WP is set to go back over and relocate the brush pile.

[@PCAPastorTrav]

This was super helpful. Would have loved the final step, how do I judge distance accurately when I go to use the waypoint from the mapping function?

[@BillDog_NC]

When you elect the waypoint you want to go to on your graph, it will show you the distance the waypoint is from your boat’s transducer.

[@PCAPastorTrav]

@@BillDog_NC Thanks!

[@markstebelton5953]

My transducer is angeled down under my boat. The beam is hitting the bottom nearly straight down from where I sit when driving and viewing my screen.

[@tonylawson8354]

Very well done

[@joeleade7622]

I thought the imaging transducers projected a cone rather than a straight line?

[@rudylallave4370]

How far can a transducer effectively take pictures at the bottom when not moving? From back to front and both sides, and how deep it can penetrate?

[@mitchellhelms7238]

Thank you for the information it's very helpful

[@BWOUTDOORS]

GREAT VIDEO TO WATCH THANKS,

[@0013619511]

Could you use a down imaging transducer for forward facing sonar on trolling motor

[@BassholeByNatureFishing]

If the fish would have stayed under the transducer for 3 mins what would that look like on the finder? Would it have been a long streak or a constant dot??

[@steveparker7240]

Long streak. Constant dot only if using Livescope-type sonar in the down mode.

[@BassholeByNatureFishing]

@@steveparker7240 that makes so much sense!!!

[@victordankanych]

Great explanation 🤝 thanks

[@rpeek]

Helpful. Thank You

[@nbcguitar]

Thank you very much sir.

[@csmith0921]

Your tutorial is straightforward, but no one has been able to explain to me how down imaging interprets an image directly overhead as a side image. If I am looking down, I would see a stump or tree as a round(ish) image, but the DI return shows me an image as if it were taken from the right side somewhere in the distance.

[@shaneball1002]

He definitely has videos on this

[@csmith0921]

@@shaneball1002 link?

[@randycooper2046]

The sonar beam is a upside-down cone. That gives it a slight angle as the stump first appears inside the beam. As the boat moves it does get directly over the stump and eventually a little ahead of the stump before exiting the beam. This will create a limited but still a definite 3D-ish looking image on the screen.

[@intexxi]

How wide is the area under the boat being scanned? For example. If one of those brush piles was 10feet to the left of the boat and you didn’t drive directly over it, would it appear differently on the screen? Or would it not appear at all?

[@felixsupreme22]

I have this question as well. Did you get an answer?

[@WeedsePoentah]

So the sonar only looks to the center down or backwards then?

[@nicholastarantino5567]

great explenation

[@badneed]

What speed creates the best “picture”. If I scan a dropoff, what speed should I strive to go?

[@N1ghtR1der666]

honestly as these devices can give you a waypoint for a particular slice of the image, they should also be able to put a simple heading and distance reading when you click a place on the screen

[@Sam-mx2pi]

your navigate to Waypoint feature does that. I use it often.

[@KevinMacW]

Awesome video, thanks!

[@mahaze55]

Question, once you create your waypoint am I correct in thinking that providing where your gps puck is on the boat, (mine is at the rear of the boat) using the casting ring feature and the length of the boat, mine is 18 feet long. setting the casting ring to 70 feet will put the brush pile roughly 50 away in front of the boat? Also my trolling motor is linked to the Humminbird

[@markgalezo8587]

I have a home fishing kayak and am using a portable Hummingbird unit. If I mount the transducer with the suction cup on the side of the boat and the flat end of the transducer is facing down instead of horizontally, what happens to the imaging? Will it still work?

[@MosesFishing]

FtM: heres how to use down imaging Randy Blaukat: down imaging sucks and heres why!!

[@greglee2785]

Great job.

[@pppaulie73]

Could you throw a marker buoy as soon as you see the image? Probably no one does this. If you threw it slightly behind and out to either side as to not throw it right on top of the object you"re going to fish. I realize that's not very modern but it would also give you a visual as to where to cast.

[@garymeierhenry3223]

A companion video may be then comparing the down scan with the 2D and the 'active target' type.

[@alexkoski5158]

Can you use a fish finder for anchor boat fishing?

[@jeffreyanderson2650]

thank you, very helpful!

[@jamieshay4995]

Do you think di would pick up an image of a boat motor laying on bottom of the lake at about 20 ft??some people lost a 15hp 4 stroke Johnson

[@kenestra123]

Dumb newby question here, so once I see fish on my graph I would want to throw out a lure to the front of the boat or anywhere around it? My buddy said he can see his crankbait enter the water when he cast it out and let it drop down to the level to where the fish are suspended.

[@DonnaGreen-hg1wt]

Very helpful video

[@fishermanstales8946]

When the sonar takes a picture from above to the bottom of lake. How come the picture you see on the screen is from the side?? A brush image from the top is not the same as a brush from the side. But we do see the watercolom from the side on the screen??? How do you explain that??

[@markgalezo8587]

Great video

[@jakeroberts7302]

Yes Johnny hello. Question. Why do I lose all my a-rigs on the same wp? I don't like brush, its expensive to fish there

[@swimstud5151]

Thank you for this! Much needed explanations for me here!