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poor hds 9 readings at high speed

  1. Cant get good high speed (25) mph walleye marks on hds 9 unit. I have tried all that you are suppos

    Lake Erie General Discussions
    Been running HDS 9's for two years on Erie. Have been to courses on how to set up these units and bougt videos on this type unit. I have adjusted the transom brackets and tilt of the tranducers probably 8 or so times with no success. Have adjusted the gain and sensitivity as taught at these...