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Thread: Finding fish with side imaging

  1. #11
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    Quote Originally Posted by rnvinc View Post
    Sometimes fish are difficult to discern in SI for the simple fact that the image ratio is so much smaller in the SI image...

    This is largely determined by the SI range setting....scanning farther out to the sides requires the the unit to "squash" more data into the same size screen ....making individual echo returns even smaller...

    This can be overcome to a certain degree by scanning shorter ranges or scanning 1 side only ...which, in effect, allows the unit to "spread" the data out across the display more ...making individual echo returns larger ...and easier to pick out...

    One idea is to find structure using the SI and set a waypoint on it...then reposition the boat to effectively fish the structure with the 2d sonar or the DI sonar...

    Another idea is to recognise recent success in similar structure...if fish have been found successfully in brush in 15ft of water...finding a "new" piece of brush with the SI in similar 15ft water depth would indicate a good possibility that fish "should" be present in the "new" found structure...(so maybe a little more time should be spent probing this new found structure just because they "should" be there...even tho the fish echoes may not be evident in the image...)

    Rickie
    Good job, Rickie...
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  2. #12
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    Cane Pole is offline Crappie.com 2011 Man of the Year * Crappie.com Supporter
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    Rite on Rickie.
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  3. #13
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    Quote Originally Posted by rnvinc View Post
    One idea is to find structure using the SI and set a waypoint on it...then reposition the boat to effectively fish the structure with the 2d sonar or the DI sonar...
    Rickie
    This is how I use mine. IMO setting the range to 150+' looks good on screen shots but is not much punkin' while actually on the lake even on the larger screen units.

  4. #14
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    Or you can not worry so much about actual fish but use your si on 100 to 150± to locate fish holding areas such as humps, points,turns in a creek followed by large flats and such. By doing this and leaving other less appealing areas to fish later.you save a lot of time doing this and for the most part will be the best or most productive areas anyhow.(there's just some structure that no matter how good it looks it will never hold fish just because of its location in relation to the areas that i mentioned above.)if your already familiar with an area then i would say that to scan no more than 60ft. In water lets Say maybe twenty ft.or less would work great.also something else that is helpful,once your done scanning at long range using the 455 if you'll change to the 800 while scanning the closer range that i mentioned,the 800 will make fishes stand out better than 455 would.see how these fish stand out using the 800khz

  5. #15
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    Here's another using 800.see how bright it makes the fish returns look. the fish on the left side are the most obvious, but look on the right side out close tothe edge.there's fish showing out there

  6. #16
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    Kosmo.....were you going 5mph when you did those?

  7. #17
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    I tried using si for seeing fish in brush today, short range, one side, absolutely no good at all

  8. #18
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    rnvinc is offline Crappie.com 2016 Man of the Year * Member Sponsor
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    Quote Originally Posted by brettw View Post
    I tried using si for seeing fish in brush today, short range, one side, absolutely no good at all
    That's where that fantastic DI Lowrance has comes in play...

    Set a waypoint on it and scan with the DI...

    Rickie
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  9. #19
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    Quote Originally Posted by BobB View Post
    Kosmo.....were you going 5mph when you did those?
    no i proberlly was idlling .that second picture is in ky. Dam marinia. You can tell by how much turbulence that can be seen at the top of the water column in my shots.in this picture Im going fast enough that my boat is starting to rise


  10. #20
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    Quote Originally Posted by rnvinc View Post
    That's where that fantastic DI Lowrance has comes in play...

    Set a waypoint on it and scan with the DI...

    Rickie
    I agree, I was attempting to scan into brush via si to avoid going directly over them. I wouldn't mind so much if I was using the TM but I can't easily do it that way

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