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The SI ducer has DI, but no 2D. In my case, with a 70DV, I have to keep the 2D/DI transducer in order to have 2D sonar, if I install the black box and SI/DI Chirp.
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The SI ducer has DI, but no 2D. In my case, with a 70DV, I have to keep the 2D/DI transducer in order to have 2D sonar, if I install the black box and SI/DI Chirp.
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