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Gold Prospecting STF 9,5"x12,5" (3,5 kHz + 30 kHz) DD Coil for Intronik STF

Discussion in 'Coils Fitting Multi-Frequency AKA Metal Detectors' started by SuchMuch, Mar 7, 2018.

  1. SuchMuch

    SuchMuch Administrator Staff Member

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    ***qte***
    News from AKA Labs...

    Today I have tested new gold prospecting STF 9,5"x12,5" DD coil with doubled frequency bundle: 3,5 kHz + 30 kHz. I'm quite surprised with sensitivity INK being equipped with subject coil is able to produce in air

    Target: Air Detection Distance (Gain on 25%) / Air Detection Distance (Gain on 100%):

    Gold Nugget, 1 gram: 20 cms / 25 cms
    Russian Hammered Coin, diameter 6 mm: 26 cms / 32 cms
    1 Kopeck USSR: 41 cms / 51 cms
    Russian Hammered Coin, dims 11 mm x 14 mm: 42 cms / 53 cms :Shok:
    5 Kopecks USSR: 55 cms / 69 cms
    Coin "Denga": 52 cms / 60 cms
    5 Kopecks Ekaterina 2: 54 cms / 67 cms
    Aluminium Beer Can 0,5l: 120 cms / 150 cms

    To sum all, air "depth" on low conductors has increased by 30%-40% and has not changed on high conductors
    ***unqte***
     
  2. Ringmoney

    Ringmoney AKA Veteran

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  3. TS
    TS
    SuchMuch

    SuchMuch Administrator Staff Member

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  4. bandicoot

    bandicoot AKA Sectarian

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    SuchMuch

    SuchMuch Administrator Staff Member

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