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Optimize your coilcable-plugs for body-weared detectors!

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  • Optimize your coilcable-plugs for body-weared detectors!

    If you use a detector where the detection-device hangs over your chest, its very important
    that the plug sticks in the jack really as tight as possible and that the coil-cable at this region
    is "fading-out"-flexible.

    Because the cable is moving all the time while sweeping the coil which creates much more
    stress and tension for the involved parts compared with usual "fixed" coil cables.


    Check out the pix - I have used a little piece of sheet-metal, cutted out from an alu beer-can.
    Such sheet is ca. 0,1 mm thin and works very good. First the plastic part of the plug has to be
    made a bit rougher by some sharp metal object like a knife, so the super-glue gets more grip.

    A (small) knife also should be used to make the edges of the sheet-metal less sharp.


    This improvement is especially important for detectors with pretty small coil-cable connectors,
    because if there is too much wear and tear coming from the coil-cable, such "weak-point" parts
    can receive serious damage after some months or the coil-cable even can break directly there !!!

    That's why it's also very important to secure this region additionally with (black) duct tape
    to make the coil-cable successively more flexible - ca. 5-15cm. That's also recommended for
    the area where the cable leaves the coil - where it can get touched by all kind of ground-stuff.


    The attached pix explain everything pretty good. Have fun and long living coil-cables!
    Attached Files

  • #2
    Together with improving the coil-cable at the connectors and coils region its also good to enhance
    it where it leaves the pole (see picture). Because from here it hangs down in a half loop and the
    motion energy caused by the sweeping concentrates at this area and those of the coil-connector.
    So without any safety-measures those would be the weak-points where the coil-cable can break
    after some months or years, depending how often its used - especially if the wires are copper!

    Preventing such hassle is very simple:
    Check out at what region the cable of your chest-weared detector comes from the stem,
    use a roll of duct-tape and add some windings there with enough lenght (30-50cm)
    Its also useful to fix the coil-cable with some removable strap at that region.



    Wireless detectors are not that useful because if those should be
    really deep and powerful, they have to provide at least a larger lipo-accu
    built into the arm-rest incl. transmitter, which could raises the weight up
    to 0,5 kg.

    And building a powerful accu directly into the coil is a stupid solution,
    especially because of the huge weight multiplication.
    So a real useful wireless detector still needs some small coilcable
    leading to the armrest where everything is much better to handle.


    So far a chest-weared detector with improved coil-cable is the most stable, lightweight
    and reliable solution - especially for real strong deep-detectors with reasonable coilsizes!

    Good luck.

    Click image for larger version

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    • #3
      The following pic shows very good how the complete thing should look like -
      this is the most easy-weight solution for a big coil and yesterday I searched
      10 hours with it (DeepHunter & 45cm motion coil).

      Especially if its get more cold outside, its very important that the plug and
      connector closes up really tight, because lower temperatures makes the
      coil-cables more stiff which can lead to alot more wear and tear at the
      coil-connectors region.

      Click image for larger version

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      • #4
        Funfinder, What material did you use? Duct tape you buy at the hardware store?
        Not electrical tape?
        Also what and why the aluminum piece in the male part of the cable connector?

        Comment


        • #5
          Thx for your interest because securing the connector is really an important precaution-measure.

          It doesn't matter where you buy the tape as long as it is soft or flexible enough
          so you can regulate this by more or less layers.

          The thin alu-sheet makes the plug sits real tight inside the connector, before this was not the case,
          still not good enough at all after turning the plugs fixed rotary-screw maximum to its halt.

          The plug itself wasn't tight enough with its micro-screw
          so I had to change this - by some drops of super-glue.

          Usually plugs for such detectors should have a 90° angle so the cable shows directly downwards
          while the box hangs over the chest and they better should use cables like old phones have for
          much better flexibilty. Or micro-double-helix-wires like those of better headphone cables.

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