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  1. #1
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    What wire to extend Humminbird power cable ???

    Going to mount a798 CI SI unit at trolling motor on a 98 Xpress H-56 & wondered what wire to use to extend the power cable that will be ran directly to the starting battery & what you reccomend to do for the best way to install for the least amount of noise interference ??? Thanks

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  3. Member Especial Bryanmc57's Avatar
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    #2

    Re: What wire to extend Humminbird power cable ??? (Les Young)

    12 or 14 gauge wire with the splices soldered and heat shrinked. Use a spade type fuse and run the wires down the opposite side of the boat from the TM wires if possible.

  4. Member J-Stro's Avatar
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    #3
    Do you put the fuse closer to the unit or the battery?

  5. Member Especial Bryanmc57's Avatar
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    Re: (J-Stro)

    I prefer the fuse close to the battery so the entire circuit is protected.

  6. Member J-Stro's Avatar
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    #5
    What amp fuse should I use? Can you post a link? Thanks again.

  7. Member Especial Bryanmc57's Avatar
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    Re: (J-Stro)

    Humminbird recommends a 3 amp fuse. The spade type fuses and holders are available at any auto parts store.

    http://www.autozone.com/autozo..._0_0_

  8. Member J-Stro's Avatar
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    #7
    Gents,
    Went to home depot and lowes...... closest either of them have is low voltage landscaping wire for lighting.

    I called the local marina and they use regular wire instead of /2 wire. They just run one red one and one black one.

    Is something wrong with going this route?

    Also, do I put a fuse on each wire? Thanks.

  9. Member Especial Bryanmc57's Avatar
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    #8

    Re: (J-Stro)

    Nothing wrong with running 2 wires, it's just a pain. The landscape wire would work, you're only dealing with 12 volts and it's a 14 gauge conductor. The fuse goes in the positive wire.

  10. Moderator Doug Vahrenberg's Avatar
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    #9

    Re: (Bryanmc57)

    Take an extension cord and and use it to extend the power cables works easy.

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    http://www.dougvahrenberg.com/

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    #10

    Re: (Doug Vahrenberg)

    If I were running new wire, I would make sure I was using twisted pair wire. This will GREATLY reduce the possibility of interference.

    You can even twist the wire together yourself if using idividual wires....about 6 twists per foot. Some of the outdoor extension cords have twisted wiring. If you use an extension cord, ground the extra wire on one end only, otherwise the extra wire can act like an antenna for noise.

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  12. Moderator
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    #11

    Re: What wire to extend Humminbird power cable ??? (Les Young)

    Les, I use this. IT is perfect for extending your power cord. Cheap, easy and effective.

    http://fayettevillehvac.com/wp...e.jpg



    Atlanta, GA Bass Fishing Guide/Swimbait Mfg
    http://www.TritonMike.com

  13. Member
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    #12

    Re: What wire to extend Humminbird power cable ??? (T Mike)

    Thanks guys.

  14. Member
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    #13

    Re: What wire to extend Humminbird power cable ??? (Bryanmc57)

    Bryan, thanks & yes I will be running them down the oppisite side away from the trolling motor wires. It will be a whole lot easier that way anyhow.

  15. Moderator Doug Vahrenberg's Avatar
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    #14

    Re: (Bob B)

    <table width="90%" cellspacing=0 cellpadding=0 align=center><tr><td>Quote, originally posted by Bob B &raquo;</td></tr><tr><td class="quote">If I were running new wire, I would make sure I was using twisted pair wire. This will GREATLY reduce the possibility of interference.

    You can even twist the wire together yourself if using idividual wires....about 6 twists per foot. Some of the outdoor extension cords have twisted wiring. If you use an extension cord, ground the extra wire on one end only, otherwise the extra wire can act like an antenna for noise.

    </td></tr></table>

    Excellent tip Bob! Anything you can do to keep wires from creating an antenna effect like figure twisting the wire helps and instead of neatly coiling any excess cables make them in a figure 8 pattern will also reduce the odds of creating antennas that can receive RF Noise.

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    http://www.dougvahrenberg.com/

    BASS Central Open- Competitive Bass Angler and Humminbird Guru
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    #15

    Re: (Doug Vahrenberg)

    Thanks Doug....If a person is changing out the power wire to the trolling motor, it should be twisted wire also. This would greatly reduce the transmitted noise.

    I would think boat manufacturers would be using twisted pair wiring standard for all boat power.

    I work with commercial building controls, and we don't run ANY power, I/O, or communication wiring without it being twisted pair wiring. For communications, we use twisted pair shielded wire with a choke at each device for even greater noise reduction. When using shielded wire, the shield should only be grounded at one end to prevent ground loops.

    P.S. A quick way to create your own twited wire is to lay the pair of wires out, connect one end to a solid object and chuck it into a drill on the other end.
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