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Humminbird Down imaging vs Lowrance DownScan? #8310584 12/07/12 11:05 PM
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horton5303 Offline OP
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From what i see on here Lowrance blows humminbird out of the water on Brushpile detail. What are your thought's? I have a Hbird 581i HD DI and im not impressed at all with the down imaging at all..


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Re: Humminbird Down imaging vs Lowrance DownScan? [Re: horton5303] #8310597 12/07/12 11:10 PM
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From what I have seen, they are equal. It's the operator that determines the image quality.

Actually your Humminbird does a little better since it has a higher resolution display.

Last edited by Wayne P.; 12/07/12 11:22 PM.

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Re: Humminbird Down imaging vs Lowrance DownScan? [Re: horton5303] #8310600 12/07/12 11:11 PM
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This is another ford vs chevy type of deal. I have a buddy that has an 1198 and I have hds-8's. I choose lowrance for di, I can dang near count the crappie on a brushpile.

Re: Humminbird Down imaging vs Lowrance DownScan? [Re: Chris Borden] #8310623 12/07/12 11:20 PM
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Originally Posted By: cborden
This is another ford vs chevy type of deal. I have a buddy that has an 1198 and I have hds-8's. I choose lowrance for di, I can dang near count the crappie on a brushpile.


The Humminbird Side Imaging units don't have a dedicated Down Imaging crystal, BUT an experienced owner can get very good images.
You can see the individual weed stems in this thick weedbed of Egeria which is similar to Hydrilla.
This is from a Humminbird 798ci SI.


Last edited by Wayne P.; 12/07/12 11:20 PM.

Helix 12 CHIRP MEGA SI+ GPS G3N and G4N, 1198c SI, SOLIX 10 SI G3,
Helix 8 MEGA SI+ GPS G4N, SOLIX 12 SI and G3, MEGA 360, MEGA LIVE TL, RC-1
Re: Humminbird Down imaging vs Lowrance DownScan? [Re: horton5303] #8310624 12/07/12 11:20 PM
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horton5303 Offline OP
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See Brushpiles on mine you cant hardly tell if its a huge baitball on the bottom or a Brushpile..?


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Re: Humminbird Down imaging vs Lowrance DownScan? [Re: horton5303] #8310628 12/07/12 11:21 PM
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horton5303 Offline OP
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I think if i had color it would help.


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Re: Humminbird Down imaging vs Lowrance DownScan? [Re: horton5303] #8310634 12/07/12 11:23 PM
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horton5303 Offline OP
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You would also think that these companies would give you accurate images and instruction on what you are actually seeing instead of us having to quess at it as far as proper settings etc..


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Re: Humminbird Down imaging vs Lowrance DownScan? [Re: Chris Borden] #8310641 12/07/12 11:24 PM
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horton5303 Offline OP
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Originally Posted By: cborden
This is another ford vs chevy type of deal. I have a buddy that has an 1198 and I have hds-8's. I choose lowrance for di, I can dang near count the crappie on a brushpile.


I agree i have seen images like that but they are usually on side imaging where you can actually see the fish.


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Re: Humminbird Down imaging vs Lowrance DownScan? [Re: horton5303] #8310647 12/07/12 11:26 PM
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I have put the back of the boat over Standing timber in deep water and it just shows a bunch of Clutter.. Nothing like the image on the screen when you look at them online for sale.


DriftAway Charters Fishing Trips. South Padre Island, Texas. Bay fishing at it's finest! Call 956-505-9500 to book your trip. https://southpadrefishingtrips.com/
Re: Humminbird Down imaging vs Lowrance DownScan? [Re: horton5303] #8310665 12/07/12 11:29 PM
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horton5303 Offline OP
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Nothing like this..



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Re: Humminbird Down imaging vs Lowrance DownScan? [Re: horton5303] #8310746 12/07/12 11:54 PM
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can you post some images that you have ? and present settings?
Also keep in mind you have a 297.00 fishfinder.. dont expect 1800.00 images.








Last edited by leanin post; 12/07/12 11:57 PM.

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Re: Humminbird Down imaging vs Lowrance DownScan? [Re: leanin post] #8310773 12/08/12 12:05 AM
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Originally Posted By: leanin post
can you post some images that you have ? and present settings?
Also keep in mind you have a 297.00 fishfinder.. dont expect 1800.00 images.

I agree. I just can't pony up that kind of cash right now. But if i paid 1800.00 would the down imaging be the same?









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Re: Humminbird Down imaging vs Lowrance DownScan? [Re: horton5303] #8310778 12/08/12 12:07 AM
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Sensitivity usually around 8 for the sonar. DI i have maxed out. Generally use auto on the depth but sometimes i will adjust it to about 5 feet deeper than the area that i am fishing. Scroll speed is always on Ultra.


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Re: Humminbird Down imaging vs Lowrance DownScan? [Re: horton5303] #8310791 12/08/12 12:11 AM
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What I see is inexperienced owners not understanding the imaging technology.
The sonar pulse is very thin front to back and is wide to the sides.
For the unit to "draw" the images on the display, it takes movement so the sonar pulse can scan and the image recorded.
It isn't a camera and video monitor and it is not traditional sonar with a cone shaped pulse.
It is similar to a CAT scan that hospitals use.
To put it simply, "if you ain't moving, you ain't scanning" so you will have no decernable image.

That posted 581i image shows the speed of the boat as 4.5 mph, not 0.


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Re: Humminbird Down imaging vs Lowrance DownScan? [Re: horton5303] #8310861 12/08/12 12:31 AM
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This is a screen capture from a Humminbird 597ci HD DI of a bridge support. Copied from another post:



Helix 12 CHIRP MEGA SI+ GPS G3N and G4N, 1198c SI, SOLIX 10 SI G3,
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