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Thread: Humminbird 688

  1. #1
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    Default Humminbird 688

    Took this picture trying to learn how to find fish with this thing, any ideal what is going on. Something shows up on 2 d but nothing on down images
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  2. #2
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    I can see s faint signal return on the DI screen. It looks like a beaver hut to me, or bait fish swimming around.

    Sent from my SM-G965U using Tapatalk
    dave
    in currituck

  3. #3
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    It's all about the "shape" of the 2d Sonar beam vs the DI Sonar beam ...


    Rickie
    Last edited by rnvinc; 07-08-2019 at 09:08 PM.
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  4. #4
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    Any ideal what it is in the 2 d screen?

  5. #5
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    Cray is offline Crappie.com Legend and Moderator of the Mechanics Forum * Crappie.com Supporter
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    It’s huge balls of bait with a few fish mixed in.
    Proud Member of Team Geezer
    Charlie Weaver USN/ENC 1965-1979




  6. #6
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    Looks like a bug hatch to me.

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