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New Detech 80cm Concentric Coil for PI detectors
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<blockquote data-quote="Candigger" data-source="post: 511586" data-attributes="member: 14328"><p>I find it peculiar that 18" CC coil will show the same and even better results as 19" NF Mono coil, considering that the GPX input design limits this from happening no mater what. As long as there is any type of RX in any given coil that coil can never show the same depth as same size Mono, because of the GPX input hardware.</p><p>Other factors are the coil cables. The NF coil cables are as good as one can dream about while the Detech cables are not on the same level. The cables play vital part in the coil self resonant frequency, which in the Detech coils is quite low as opposed to NF, Coiltek and ML. Low self resonant frequency will define relatively slow time constant of the coil, which in turn will limit the depth.</p><p>Aside from all this Detech, NF, Coiltek and ML are using the same Litz wire of 40 strands x 0.2mm enamelled copper wire. From that point there is no basis of any coil to be for real any better than the others.</p><p></p><p>There can be many arguments on how detectors and coils can be tested, plenty of personal opinions there, but before all of that are the engineering facts of how all these things are designed and work and the mentioned above results are in conflict with the scientific rules.</p></blockquote><p></p>
[QUOTE="Candigger, post: 511586, member: 14328"] I find it peculiar that 18" CC coil will show the same and even better results as 19" NF Mono coil, considering that the GPX input design limits this from happening no mater what. As long as there is any type of RX in any given coil that coil can never show the same depth as same size Mono, because of the GPX input hardware. Other factors are the coil cables. The NF coil cables are as good as one can dream about while the Detech cables are not on the same level. The cables play vital part in the coil self resonant frequency, which in the Detech coils is quite low as opposed to NF, Coiltek and ML. Low self resonant frequency will define relatively slow time constant of the coil, which in turn will limit the depth. Aside from all this Detech, NF, Coiltek and ML are using the same Litz wire of 40 strands x 0.2mm enamelled copper wire. From that point there is no basis of any coil to be for real any better than the others. There can be many arguments on how detectors and coils can be tested, plenty of personal opinions there, but before all of that are the engineering facts of how all these things are designed and work and the mentioned above results are in conflict with the scientific rules. [/QUOTE]
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Metal Detectors
Detector Accessories
New Detech 80cm Concentric Coil for PI detectors
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