Nice explanation. I just wanted to point out that the beam doesn't go to the bottom, and then kick out to the side. Sound waves don't move that way. It's actually using more than one beam, and combining the results.
This Incredible,your giving me information I've never understood before,I've already saved this and all your videos to my favorites, I'm kinda upset that companies don't explain "FINE DETAILS " like this to help fisherman to understand COMPLETELY what were looking at, thank you Jonny 👊👊👍
Think of it this way: The manufactures aren't in the business of education. It is the same with Chevrolet - they don't teach the buyer of a new truck how to operate ALL those features from one bumper to the other.
You really should have gotten a reward for this video.... It is so mis understood to guys with sidescan and structurescan .... that the range feet left and right are not considering the down depth. Great job.... 3 years later but still i go to this twice a year
Thank you, young man, for helping an old guy understand this side imaging. These electronics are not as natural and easy for us to understand. You are a gifted fisherman and teacher.
FINALLY! A video that concisely and in non-technical language, explains the side-scan sonar! I’d love to see one of actual fish... Seriously, the more of your videos I watch, the more I learn. Great job- you’ve got a natural talent for teaching and relating this information! This new subscriber is “hooked”!!!
Thanks for making this video. I sent it out to all the guys who bought units and didnt like them because they didnt fully understand them. This helped a lot.
Thank you for confirming what I thought about side distance. Most people just look at an object, compare to the scale, and say that's the distance, without taking into consideration the water depth that needs to be subtracted.
Great explanation! I have debated with so many on this and they think if their graph is set to 60 feet on each side, it is scanning 60 feet left and right but they don't understand that the depth of the water is also included in that and they aren't subtracting the depth of the water. I hope many others come across this video to better understand how this works!
If you are right this is the best video i have ever seen about how this works. I feel you know what you are talking about so i want to say thank you very much. Great job
Well done! While you may have beaten a few points to death, I can see how important they are and the concepts were clear when I finished the video. Good teaching, good focus on a single topic. Now headed over to look "What Bass Look Like on Side Imaging". Thank You!
Good video but a couple points to clarify. The center dark part is actually not just straight down, but a narrow cone (same as down imaging) which is why sometimes you will see items in the right dark area that aren't in the left part or at least not as bright in the left part. Second point is the side imaging doesn't ping straight to bottom and then shoot the right and left. It just aims the sensor at an angle, so it shoots from the transducer beam at a wide angle that ends up touching the entire bottom from below your boat to whatever range is specified. There is no technology that allows you to change the direction of sound waves once they leave the transducer. Also, even if they could shoot down and then to right, you wouldn't want that because you'd miss everything above the bottom to the left and right of the boat.
Actually; he is correct in a technical sense (Geometry and Science), Sound waves will hit and return from the closest point first, but due to the speed of the sound wave it makes no difference, as the screen will display it as it's algorithm is programed to interpret the returned signal. What does make a difference is in understanding what the image is representing with respect to the boats location, and he did a good job of illustrating the point.
Exactly. So his distance explanations are incorrect. Fishfinder doesn't measure surface distance to the object, but it measures the actual distance to the object (despite the depth).
Awesome, awesome video. On the follow up, can you please go over how to determine where the fish is position. As in, if they are in the dark area right under the boat or if they are to the side, could we determine their dept base off of side scan. Thank you!!!
Very good information very helpful as I just got a Garmin UHD 94sv with side imaging and your video gave me more confidence in using this feature. Thank You!
Thank you. You definitely taught me a thing or two! I’m from the “Showme” state and really understood you taking the time to stretch out that tape measure ! Well Done!
Thank you, just so I am sure that I get this. If my depth to the bottom of the lake is 20ft. and I have my range set at 40 ft. I am actually only scanning 20 ft laterally from the center of the image. So when you are trying to measure where the "basket" is that distance is measured from the center of the image and it has to be inside the 20 ft. lateral from center. Kort
Great video. You did a great job at explaining this and your illustrations and placing the objects in the parking lot really helped me get a better understanding of my side images.
I have a complete Humminbird setup with three Helix units, Ultrex, and 360 Imaging and while I agree that Johnny did a superb job explaining all this (I did have a one-on-one Google Hangout session with him), I have to say that Humminbird has a loooong list of videos on various topics. I'm not sure about the others, but thought I should mention this out of fairness to HB. They also have phenomenal support.
Don’t tell them that... cause if they start making their own vids... they’ll charge more for products. Besides... I like watching this guys videos! Awesome job, sir! Did well explaining what I needed to learn!
I just watched this video and a lot of your other ones. I am I the process of refurbishing my 91 Kingfisher 19 6. All new carpet. New seats both light gray new pedestal seats and 2 new Garmin Striker Vivid 9sv s. And then a complete detail have all new tires and bearings on trailer. Should be fun I’m ret8red now and want to enjoy bass fishing 8 got hooked on back in 1998. So I will be listening on all the setup and reading electronics thanks.
Great video trying to share to my kayak club. Now I need to see the one which identifies fish. Also my side imaging doesn't disappear but under 4 ft both down and side scan goes pretty much blank.
Wish I had seen this years ago. Thank you SOOOOO much brother. I ran across you videos many times before but never watched on due to one word. "OFFSHORE" Not sure where you are from but Here in east Tx and West La, we have lakes, marshes and "offshore" is out in the Gulf, (Saltwater). Just my feed back. Now that I've found you, I'll dig through a lot more. Thanks again. DS
Thanks so much Jonny. Just came across your channel. Although I fish salt water, the theory is obviously still relevant and look forward to watching your other sounder videos. Your theory of how the sonar pings directly to the bottom (effectively giving you a downscan image in the black bars) and then spreads horizontally to each side of the transducer giving you a 'birds eye view' is what made the theory click with me. It took me a couple of times to get my head around the fact that the ruler at the bottom of the graph doesn't directly indicate horizontal distance from the transducer. Instead, you must subtract the indicated depth, shown on the black bar, from the ruler mark measurement that lines up for the object. I.e. at a sea/lake bed depth of 40', an object that shows on the ruler at 50' is actually 10' to the side of the transducer.
I think you’re totally awesome! You’re such a nice person for sharing all of your information and your time! It is such a big deal for you to share your information with us when you could be spending time on the water LOL! So thank you very much and I’m going to check out all of your videos because I’m going to be the owner of a new fishfinder peace be with you
No doubt he best explanation of side imaging I have seen. I am still a little confused about the distance sale at the bottom of the screen...to know if the actual brush pile in your images is 30 feet from the center-line of the boat, or only 10 feet, since the black area represents the water column DIRECTLY under the boat. Is the line between the black and amber DIRECTLY under the boat, or in 20 feet of water is it 20 feet to the side of the boat. Thanks again for trying to explain. I upgraded from an ONIX 10 to a SOLIX 12 and I still struggle with using the scale.
I dont think the distance from the transducer to the object is the sum of the depth and sideways distance, (1.5 ft + 23.5 ft = 25 ft.) Shouldnt it be the hypotenuse of the 2 distances? C2=A2+B2 or 23.548 ft. In this example the 2 calculations are very similar but a more realistic scenario such as 40 ft deep and 30 ft to the side would not be 40+30= 70 ft, it would be 46.9ft..
Awesome video Johnny. Definitely helped me. I’ve always had trouble understanding side imagining. Looking forward to seeing what fish look like on side imagining. Keep those electronic videos coming.
Very good question. I have spent several hours with Garmin support and they cant give me a straight answer. If I understood Johnny correctly, the first 20 feet will be taken by the water column so that brush shown at 30 is really at 10 (30 minus 20 feet of the water column). So in essence, the bottom is really zero feet to the side of the boat. Hopefully Johnny can step in and clarify. Great video.
If scanning 80 ft, 20 ft is depth, which means 60 ft is scanned at the bottom to the left and right. If object on finder is located at 40 ft to the right. 40ft-20ft (depth). Does that mean object is 20 ft to the right?
Great video! I’m so jazzed and it’s cold here but I’m going to try it out on my local lake first thing tomorrow. So basically your adding your water depth to how far you are right or left correct?
Not that I want to confuse your subscribers but you only provided half the story. The distance on the side scan after the water column (after the black space) is only an accurate distance if the scanned item is on top of the water. The distance on the scanner is the distance between the transducer and the scanned item. I'm pretty sure the algorithms havent become sophisticated enough to take into account water depth when considering distance. For example if you are in 10 FOW and the imaging says the object is 20 feet after the black space... it is only 20 feet away if it on top of the water. Its is 17 feet away if it is on the bottom of the lake and 18.5 feet away if it is half way in the water column. This exaggerates as the water depth become greater or your distance to the object become greater. For example in 20 FOW and the item reads as 60 feet away after the black space. Then if it is on the bottom the item is 56.5 feet away and 60 feet away if it's on top of the water. In summary, assuming your measuring distance after the black space/after the water column, then the distance of the item is accurate if on top of the water and closer than you think if it's on the bottom.
I now understand more in your 15 minute video than I learned reading every article i could find in the past 5 days. Thank you for explaining this in the detail you did.
wow...in my expectance regarding measured distance the processor should correct the distance automatic to the correct number. So very surprised it is not doing that according to your story. I also had the conception that there are three signals coming from the transducer, one for left , one for right and one for down ? Because you can select them individually... So as i thought that`s where the black spots come from during side imaging because they shoot at an angle . So i was wrong all the time ? And i really studied instructions.... Also i wonder in general why putting the transducer on the back if in front give`s you much more reaction time. But i guess that`s a bass boat high speed only option. Would be great doing real live test with a sunken object on a buoy to confirm all this ? BTW am running Lowrance HDS gen.1 & LSS1 structure scan...
This is a fantastic explanation and illustration, exactly what I needed! This explains why my side imagining wasn't picking up known structure very well to the side while salmon fishing in 120 feet of water when my SI setting was at 100' left and right. I never knew that. Glad I watched this.
The best way the side scan was described to me was with a folded piece of paper, fold it like an upside-down T - so your peak is pointing upwards and it is flat across the bottom. Imagine your transducer is at the top of that peak, and the flat part is the lake bottom, and the vertical line is your water column. The down imaging image would be looking at this paper from the side, you see the shape of the lake bottom, and the water column. To understand the side scan, look at the paper from the top, and flatten it out. Now you see the water column on either side of the transducer, and the lake bottom outside of that. This also helps to wrap your head around the range. If the water column was 20', and the horizontal distance of the lake bottom was 80', then the total range (or distance on the flattened paper from transducer to the edge) would be 100'.
As long as your chart speed on your graph is matched with your boat speed, you should be able to pin point the brush pile you past.... correct? Or am I way off?
p1sc281 the “speed” on your sonar unit is not relative to MPH. In the same way that setting the volume on your TV to “30” isn’t the same as 30 decibels. It’s merely a numerical value for reference.
great video but still confused on the SI distance and depth. My question is this. If I have my SI distance set to 40ft on each side of the boat and the water depth is 10 ft so my actual SI distance is 30 ft each side?
So the basket being 14’ straight to the side of the boat would show on the graph as 15.5’ out to the side to account for the 1.5’ depth right? Because the distance scale at the bottom of the screen counts the depth too. Is that right? Brush being shown 30’ to the right when in 10’ of water is only 20’ out?
You still have total range, just the nadir region or water column will grow/shrink based on depth or altitude of transducer relative to the bottom. A easier understanding is to basically say that the first return (colored area) range is going to be equal to the water depth or altitude of the transducer relative to the bottom. With that said, the object of interest is still going to be the actual distance shown on the display. People also need to keep in mind when taking or marking waypoints/locating objects by waypoint or coordinate, the actual position is skewed if using the internal GPS due to the offset/lever-arm of the transducer to the GPS sensor. This is why I like to have an external puck mounted near the transducer. Great video! 👍
Nice job young man!! I learned some stuff I didnt know before...especially the dark space that u see initially. Also, looked like your left trailer brake light was out! ;)
Aren't the distances on screen representative of distance from the transducer to the object? As far as I've understood, something that's 10 m deep and 10 m to the right would show up around the 14 m mark as it's 14.14... m away from the transducer. I think the distance from transducer is called "slant range" and that's what's usually displayed on plotters.
You have so much information in your brain it is unbelievable. There's a big difference between you and me. I LOVE to fish...You LOVE to fish and KNOW how to do it!! Great Job!
So Johnny, if i'm on 20 feet depth of water and my sideview scale says the rock pile is at 30 feet to the right, then it's actually at 10 feet to the right of my boat?
CrappiElite Outdoors neither does most of the hummingbird staff and I would guess the Garmin staff also. My buddy called hummingbird and he had to be transferred to a lead engineer because no one else could confirm what this video is stating. Turns out the video is absolutely correct.
Searched for exactly this type of content when I bought my side imaging a few months ago and there was nothing out there. Thanks for your passion and clarity. Keep it up!
Nice explanation. I just wanted to point out that the beam doesn't go to the bottom, and then kick out to the side. Sound waves don't move that way. It's actually using more than one beam, and combining the results.
This Incredible,your giving me information I've never understood before,I've already saved this and all your videos to my favorites, I'm kinda upset that companies don't explain "FINE DETAILS " like this to help fisherman to understand COMPLETELY what were looking at, thank you Jonny 👊👊👍
Think of it this way: The manufactures aren't in the business of education. It is the same with Chevrolet - they don't teach the buyer of a new truck how to operate ALL those features from one bumper to the other.
@@steveking8548 great point Steve 👍👍
You really should have gotten a reward for this video.... It is so mis understood to guys with sidescan and structurescan .... that the range feet left and right are not considering the down depth. Great job.... 3 years later but still i go to this twice a year
Thank you, young man, for helping an old guy understand this side imaging. These electronics are not as natural and easy for us to understand. You are a gifted fisherman and teacher.
Steven Arden 7
Steven Arden Thank you for saying this.
Ditto!
I really appreciate your time teaching an old dog new tricks
totally agree
FINALLY! A video that concisely and in non-technical language, explains the side-scan sonar! I’d love to see one of actual fish... Seriously, the more of your videos I watch, the more I learn. Great job- you’ve got a natural talent for teaching and relating this information! This new subscriber is “hooked”!!!
Thanks for making this video. I sent it out to all the guys who bought units and didnt like them because they didnt fully understand them. This helped a lot.
Thank you for confirming what I thought about side distance. Most people just look at an object, compare to the scale, and say that's the distance, without taking into consideration the water depth that needs to be subtracted.
Thank you Jonny. Is there an Oscar for "Best Side-Scan Tutorial Video"? Well deserved, Sir!
Great explanation! I have debated with so many on this and they think if their graph is set to 60 feet on each side, it is scanning 60 feet left and right but they don't understand that the depth of the water is also included in that and they aren't subtracting the depth of the water. I hope many others come across this video to better understand how this works!
If you are right this is the best video i have ever seen about how this works. I feel you know what you are talking about so i want to say thank you very much. Great job
Really good info. I had no idea that the range to the side is affected by the water depth. Thanks.
no need for a fancy fishfinder if i don't 100% understand what it means. you helped me a lot,thanks for that very much
Outstanding video on a complicated often misinterpreted aspect of these fishfinders. Thank you!
Once again...there is no one else out there producing this kind of content. Thank you Professor.
Well done! While you may have beaten a few points to death, I can see how important they are and the concepts were clear when I finished the video. Good teaching, good focus on a single topic. Now headed over to look "What Bass Look Like on Side Imaging". Thank You!
Thx u for a great teaching video. 55yo getting back into kayaking and fishing. Grateful for you.
Good video but a couple points to clarify. The center dark part is actually not just straight down, but a narrow cone (same as down imaging) which is why sometimes you will see items in the right dark area that aren't in the left part or at least not as bright in the left part. Second point is the side imaging doesn't ping straight to bottom and then shoot the right and left. It just aims the sensor at an angle, so it shoots from the transducer beam at a wide angle that ends up touching the entire bottom from below your boat to whatever range is specified. There is no technology that allows you to change the direction of sound waves once they leave the transducer. Also, even if they could shoot down and then to right, you wouldn't want that because you'd miss everything above the bottom to the left and right of the boat.
I was just going to comment the same thing then I read yours but I did make a comment to add to yours
Actually; he is correct in a technical sense (Geometry and Science), Sound waves will hit and return from the closest point first, but due to the speed of the sound wave it makes no difference, as the screen will display it as it's algorithm is programed to interpret the returned signal. What does make a difference is in understanding what the image is representing with respect to the boats location, and he did a good job of illustrating the point.
Exactly. So his distance explanations are incorrect. Fishfinder doesn't measure surface distance to the object, but it measures the actual distance to the object (despite the depth).
Awesome, awesome video. On the follow up, can you please go over how to determine where the fish is position. As in, if they are in the dark area right under the boat or if they are to the side, could we determine their dept base off of side scan. Thank you!!!
well done thank u for making it so clear and simple this old man appreciates it!
Very good information very helpful as I just got a Garmin UHD 94sv with side imaging and your video gave me more confidence in using this feature. Thank You!
Thank you. You definitely taught me a thing or two! I’m from the “Showme” state and really understood you taking the time to stretch out that tape measure !
Well Done!
Thank you, just so I am sure that I get this. If my depth to the bottom of the lake is 20ft. and I have my range set at 40 ft. I am actually only scanning 20 ft laterally from the center of the image. So when you are trying to measure where the "basket" is that distance is measured from the center of the image and it has to be inside the 20 ft. lateral from center.
Kort
Thank you for uploading this instructional video. I look forward to finding your video explaining how fish show on the screens.
Great video. You did a great job at explaining this and your illustrations and placing the objects in the parking lot really helped me get a better understanding of my side images.
Attention Lowrance, Humminbird, and Garmin: This video should come with every unit y’all sell!!
I second that🇺🇸
I have a complete Humminbird setup with three Helix units, Ultrex, and 360 Imaging and while I agree that Johnny did a superb job explaining all this (I did have a one-on-one Google Hangout session with him), I have to say that Humminbird has a loooong list of videos on various topics. I'm not sure about the others, but thought I should mention this out of fairness to HB. They also have phenomenal support.
Great information! I'm going to watch more of your videos on th sonar.
Don’t tell them that... cause if they start making their own vids... they’ll charge more for products.
Besides... I like watching this guys videos!
Awesome job, sir! Did well explaining what I needed to learn!
I just watched this video and a lot of your other ones. I am I the process of refurbishing my 91 Kingfisher 19 6. All new carpet. New seats both light gray new pedestal seats and 2 new Garmin Striker Vivid 9sv s. And then a complete detail have all new tires and bearings on trailer. Should be fun I’m ret8red now and want to enjoy bass fishing 8 got hooked on back in 1998. So I will be listening on all the setup and reading electronics thanks.
Excellent description. Best I’ve seen. Especially good info on distance vs speed
Great video trying to share to my kayak club. Now I need to see the one which identifies fish. Also my side imaging doesn't disappear but under 4 ft both down and side scan goes pretty much blank.
Wish I had seen this years ago. Thank you SOOOOO much brother. I ran across you videos many times before but never watched on due to one word. "OFFSHORE" Not sure where you are from but Here in east Tx and West La, we have lakes, marshes and "offshore" is out in the Gulf, (Saltwater). Just my feed back. Now that I've found you, I'll dig through a lot more. Thanks again. DS
Thanks so much Jonny. Just came across your channel. Although I fish salt water, the theory is obviously still relevant and look forward to watching your other sounder videos.
Your theory of how the sonar pings directly to the bottom (effectively giving you a downscan image in the black bars) and then spreads horizontally to each side of the transducer giving you a 'birds eye view' is what made the theory click with me.
It took me a couple of times to get my head around the fact that the ruler at the bottom of the graph doesn't directly indicate horizontal distance from the transducer. Instead, you must subtract the indicated depth, shown on the black bar, from the ruler mark measurement that lines up for the object.
I.e. at a sea/lake bed depth of 40', an object that shows on the ruler at 50' is actually 10' to the side of the transducer.
Very well explained. That helped me to understand what I am seeing and how to interpret!
I think you’re totally awesome! You’re such a nice person for sharing all of your information and your time! It is such a big deal for you to share your information with us when you could be spending time on the water LOL! So thank you very much and I’m going to check out all of your videos because I’m going to be the owner of a new fishfinder peace be with you
Thanks , One if the best explaination of side imaging I have seen ,
No doubt he best explanation of side imaging I have seen. I am still a little confused about the distance sale at the bottom of the screen...to know if the actual brush pile in your images is 30 feet from the center-line of the boat, or only 10 feet, since the black area represents the water column DIRECTLY under the boat. Is the line between the black and amber DIRECTLY under the boat, or in 20 feet of water is it 20 feet to the side of the boat. Thanks again for trying to explain. I upgraded from an ONIX 10 to a SOLIX 12 and I still struggle with using the scale.
Very good tech explained for us old heads keep up the good teachings
You do an awesome job helping me understand fully what's going on. Thank you. I'm new to using electronics and boats.
WHAT AN EXCELLENT VIDEO!!!!!! THANK YOU SO MUCH. WELL DONE!!
Can't explain it any better! Thanks
i just use waypoints and makes cast to the way points. much easier. good video btw.
Great presentation, I had no idea before I watched it. Well Done!
Nice job! Very clearly to show the side image
Very helpful, I've been waiting for this very video thanks.
High quality, top notch video. Covered everything I needed to know. Thank you
Great explanation of side imaging. Really helped me to understand, thanks
I dont think the distance from the transducer to the object is the sum of the depth and sideways distance, (1.5 ft + 23.5 ft = 25 ft.) Shouldnt it be the hypotenuse of the 2 distances? C2=A2+B2 or 23.548 ft. In this example the 2 calculations are very similar but a more realistic scenario such as 40 ft deep and 30 ft to the side would not be 40+30= 70 ft, it would be 46.9ft..
I believe you.
BOOM! All my questions answered about side scan. Thanks Johnny!!
Brand new to this and learned a great deal. Nice work!!
Incredibly helpful. I really appreciate the info.
Very well done. Cant wait to put it to the test. Thanks!!
Awesome information now i understand my side imaging better. Makes alot of sense thanks
very clear explanation and easy to understand.... from BTS country... :)
Awesome video Johnny. Definitely helped me. I’ve always had trouble understanding side imagining. Looking forward to seeing what fish look like on side imagining. Keep those electronic videos coming.
The explanation is absolutely spot on but do you still get this on a kayak
You are a very good teacher
Great content. Question: If i am in 20 feet of water and the brush is 10 off the boat, is the brush 10 feet or 30 off the side of the boat?
Very good question. I have spent several hours with Garmin support and they cant give me a straight answer. If I understood Johnny correctly, the first 20 feet will be taken by the water column so that brush shown at 30 is really at 10 (30 minus 20 feet of the water column). So in essence, the bottom is really zero feet to the side of the boat. Hopefully Johnny can step in and clarify. Great video.
Very knowledgeabe information. Thank you
Thank you this video make me understand more easier
If scanning 80 ft, 20 ft is depth, which means 60 ft is scanned at the bottom to the left and right. If object on finder is located at 40 ft to the right. 40ft-20ft (depth). Does that mean object is 20 ft to the right?
Yes. Subtract the depth from the distance shown on the fishfinder to get the correct distance.
Don't think so
Great video! I’m so jazzed and it’s cold here but I’m going to try it out on my local lake first thing tomorrow. So basically your adding your water depth to how far you are right or left correct?
Thanks man the best video on RUclips for sure.
this was the best explanation i’ve seen. it’s so simple but nobody was able to explain it was well
Not that I want to confuse your subscribers but you only provided half the story. The distance on the side scan after the water column (after the black space) is only an accurate distance if the scanned item is on top of the water. The distance on the scanner is the distance between the transducer and the scanned item. I'm pretty sure the algorithms havent become sophisticated enough to take into account water depth when considering distance. For example if you are in 10 FOW and the imaging says the object is 20 feet after the black space... it is only 20 feet away if it on top of the water. Its is 17 feet away if it is on the bottom of the lake and 18.5 feet away if it is half way in the water column. This exaggerates as the water depth become greater or your distance to the object become greater. For example in 20 FOW and the item reads as 60 feet away after the black space. Then if it is on the bottom the item is 56.5 feet away and 60 feet away if it's on top of the water.
In summary, assuming your measuring distance after the black space/after the water column, then the distance of the item is accurate if on top of the water and closer than you think if it's on the bottom.
This channel is absolutely amazing. I'd like to see more of this info applied on the water though.
By far the best fishing tutorials on the Internet. Easy to understand, concise, detailed. Thank you for sharing your knowledge...
I now understand more in your 15 minute video than I learned reading every article i could find in the past 5 days. Thank you for explaining this in the detail you did.
Good video. I appreciate the knowledge.
wow...in my expectance regarding measured distance the processor should correct the distance automatic to the correct number. So very surprised it is not doing that according to your story. I also had the conception that there are three signals coming from the transducer, one for left , one for right and one for down ? Because you can select them individually...
So as i thought that`s where the black spots come from during side imaging because they shoot at an angle . So i was wrong all the time ? And i really studied instructions....
Also i wonder in general why putting the transducer on the back if in front give`s you much more reaction time. But i guess that`s a bass boat high speed only option.
Would be great doing real live test with a sunken object on a buoy to confirm all this ?
BTW am running Lowrance HDS gen.1 & LSS1 structure scan...
I don't even have side imaging and this was still a great video. I had no idea that was how the image distances were calculated.
Nice Work!! That was a great way to explain it.
This is a fantastic explanation and illustration, exactly what I needed! This explains why my side imagining wasn't picking up known structure very well to the side while salmon fishing in 120 feet of water when my SI setting was at 100' left and right. I never knew that. Glad I watched this.
The best way the side scan was described to me was with a folded piece of paper, fold it like an upside-down T - so your peak is pointing upwards and it is flat across the bottom. Imagine your transducer is at the top of that peak, and the flat part is the lake bottom, and the vertical line is your water column. The down imaging image would be looking at this paper from the side, you see the shape of the lake bottom, and the water column. To understand the side scan, look at the paper from the top, and flatten it out. Now you see the water column on either side of the transducer, and the lake bottom outside of that. This also helps to wrap your head around the range. If the water column was 20', and the horizontal distance of the lake bottom was 80', then the total range (or distance on the flattened paper from transducer to the edge) would be 100'.
Thanks Jonny, that cleared things up perfectly!
As long as your chart speed on your graph is matched with your boat speed, you should be able to pin point the brush pile you past.... correct? Or am I way off?
p1sc281 the “speed” on your sonar unit is not relative to MPH. In the same way that setting the volume on your TV to “30” isn’t the same as 30 decibels. It’s merely a numerical value for reference.
@@OriginOutfittersMaine good analogy .. you said what I was thinking.
Some fish finders make this easy. You drop a point on the SI , then magically the waypoint on the map is exactly where the brush pile is.
Good Stuff....I never knew, thanks!!!
Thank you for helping me understand!
Good information...thank you for the detail brake down...
It is very easy to operate and also to install on kayak
Great videos!!! Clarified alot thx!!!
Excellent explanation, thank you!
Dude. Cant thank you enough. Fantastic stuff!
great video but still confused on the SI distance and depth. My question is this. If I have my SI distance set to 40ft on each side of the boat and the water depth is 10 ft so my actual SI distance is 30 ft each side?
Would you show on a video how to mark a brushpile or rockpile
And how you do it and fish it .
Thanks brother
Could you show standing timber. Like a live cypress tree.
Thanks
Best explanation I’ve been able to find. The manufacturers could learn a lesson from you on how to explain to simple guys like me. Thank you
You definitely have been the most helpful person on youtube at explaining this stuff man. Appreciate all the work youve put in. WPS
So you need to subtract the depth from the width you have set?
So the basket being 14’ straight to the side of the boat would show on the graph as 15.5’ out to the side to account for the 1.5’ depth right? Because the distance scale at the bottom of the screen counts the depth too. Is that right?
Brush being shown 30’ to the right when in 10’ of water is only 20’ out?
You still have total range, just the nadir region or water column will grow/shrink based on depth or altitude of transducer relative to the bottom. A easier understanding is to basically say that the first return (colored area) range is going to be equal to the water depth or altitude of the transducer relative to the bottom. With that said, the object of interest is still going to be the actual distance shown on the display. People also need to keep in mind when taking or marking waypoints/locating objects by waypoint or coordinate, the actual position is skewed if using the internal GPS due to the offset/lever-arm of the transducer to the GPS sensor. This is why I like to have an external puck mounted near the transducer. Great video! 👍
Funny how dumb we are lol I'm going to name my fishfinder Johnny the best advice since Carolina rig explain
Nice job young man!! I learned some stuff I didnt know before...especially the dark space that u see initially. Also, looked like your left trailer brake light was out! ;)
Tom13GN I noticed that too🤣
Had his tag covered up with a towel also
This is the best explanation for side imaging I have ever seen. I can finally take advantage of this feature. thank you
Aren't the distances on screen representative of distance from the transducer to the object? As far as I've understood, something that's 10 m deep and 10 m to the right would show up around the 14 m mark as it's 14.14... m away from the transducer. I think the distance from transducer is called "slant range" and that's what's usually displayed on plotters.
I’ve always had trouble understanding side imaging, now I understand it like 123 ABC😂 Thank you so much! Keep up the great work!👍💯💯
You have so much information in your brain it is unbelievable. There's a big difference between you and me. I LOVE to fish...You LOVE to fish and KNOW how to do it!! Great Job!
So Johnny, if i'm on 20 feet depth of water and my sideview scale says the rock pile is at 30 feet to the right, then it's actually at 10 feet to the right of my boat?
Thanks!! Great vid. Never knew that the space down also accounted for the total distance my side imaging was giving me.
CrappiElite Outdoors neither does most of the hummingbird staff and I would guess the Garmin staff also. My buddy called hummingbird and he had to be transferred to a lead engineer because no one else could confirm what this video is stating. Turns out the video is absolutely correct.
Very well done!!!
Thanks, great info video
Searched for exactly this type of content when I bought my side imaging a few months ago and there was nothing out there. Thanks for your passion and clarity. Keep it up!