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Thread: New TM unit

  1. #1
    Join Date
    Mar 2006
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    Default New TM unit


    going to buy 858C or 858DI for the TM, just not sure if I need DI already have 998SI on rear
    If I go with the 858C would be able to use transducer already on my I-pilot. Could still share way points and link together
    Any thoughts as I am racking my brain
    Thanks

  2. #2
    Join Date
    May 2007
    Location
    Eufaula, AL.
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    DO NOT try using the US2 on the 858c DI or 858c HD DI units!
    Doing so could cause damage to the internal electronics of your DI unit.
    Greg Walters at Humminbird
    [email protected]
    I help because I can

  3. #3
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    Mar 2006
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    I could us it with the 858C can't I ?

  4. #4
    Join Date
    May 2007
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    Eufaula, AL.
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    Yes you can. The 858c unit will work fine on the US2 sonar.

    The problem with using the US2 with a DI model unit is that it leaves the transmit/receive lines for the DI sonar unloaded and this is where the damage can happen. Also, in shallower water the unit is using the DI sonar to determine water depth; so not having the DI sonar working would not allow a DI unit to work in shallow water.
    Greg Walters at Humminbird
    [email protected]
    I help because I can

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