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Thread: Spider Riggers

  1. #31
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    Default Spider Riggers


    Quote Originally Posted by Rees Guide View Post
    My bad, was just associaing he binos he spoke of with the Blue express, my bad.
    I watched everyone else fish and went another direction. Lol


    Big River Marine
    Bill Burnett
    870-635-0202
    Xpress, Excel, Alweld Boats. Yamaha, Evinrude, Nissan, and Mud Buddy Engines.
    We only sell the Best. Ranger, Xpress, Yamaha, Suzuki, Tohatsu.

  2. #32
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    Quote Originally Posted by feelay View Post
    Depth finders have an offset function to allow for the 'ducer being down in the water...learn to use it and you won't be trying to do the math.
    Thnx did not know this. Will have to check it out and see I can figure mine out. Maybe mine aint too ancient to have this feature. lol
    Member Of Team GetDaFeeshGrease

  3. #33
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    Quote Originally Posted by GitDaGrease View Post
    Thnx did not know this. Will have to check it out and see I can figure mine out. Maybe mine aint too ancient to have this feature. lol
    If you got a lowrance or eagle set the "keel offset" at distance of transducer under the water surface. Mine is set at 1.3 feet which is 16". It adds that number to the depth it reads to give you a true depth of water.

  4. #34
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    Default Re: Spider Riggers

    Quote Originally Posted by CatchumDeep View Post
    If you got a lowrance or eagle set the "keel offset" at distance of transducer under the water surface. Mine is set at 1.3 feet which is 16". It adds that number to the depth it reads to give you a true depth of water.
    Thnx. I have an Eagle up front. lowrance at the console.

    Sent from my dang phone
    Member Of Team GetDaFeeshGrease

  5. #35
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    Default Spider Riggers

    My two units are networked. 12" Touch at dash and a 9" Touch up front. I just set my front unit to read the ducer on the rear of the boat when trolling. It works great that way cause the fish you see on the TM ducer have already been fished anyway. When single poling brush, or trolling cover, I switch the source unit back to the front TM ducer and add 1.5.

    I thought the keel offset subtracted the offset number from the surface down to allow for the depth of your keel when running a sail boat, or a high draft boat like a loaded barge on the river etc. if it ADDED the depth of the offset to the water depth, you would run aground with your keel. Hmmmm.


    Big River Marine
    Bill Burnett
    870-635-0202
    Xpress, Excel, Alweld Boats. Yamaha, Evinrude, Nissan, and Mud Buddy Engines.
    Last edited by BigRiverMarine; 03-27-2013 at 08:28 AM.
    We only sell the Best. Ranger, Xpress, Yamaha, Suzuki, Tohatsu.

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