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what to buy for the metal detector coil, small or big

Many people ask the question, what to buy for the metal detector coil, small or big, and why do I need a small coil because it is smaller detection depth?

Complete with metal detectors comes 10 or 11 coil universal inches for most used search terms. But such universal coil does not always provide 100% efficiency of the detector; Sometimes it is necessary to examine carefully the search area or look deeper; for this purpose, and apply other coils sizes and configurations (DD) or Mono.

Small coils are designed for a thorough search when searching on attics, basements or in strong mineralization of soil or in thick grass, among the bushes. The smaller the coil, the less interference from soil mineralization and close lying iron objects. Accordingly, less interference, more detection depth, better recognized by metals. Increases sensitivity metal detector for small targets. Fairly frequent misconception regarding the size of the detector coil. Many novice hunters believe that big coil 10.5 “will ensure a rapid survey of the site search, maximum depth and reduce the risk of missing the target. (A) the use of a small coil entails running a fidgety and only a cursory search. Fundamentally wrong!

The figure shows a problem facing treasure-hunters, searching a large coil of where items are located close to each other. The signal from the coins is blocked signals from nails. In this case the target is skipped, because the metal detector are unable to discern simultaneously two subjects: can you hear the odd and erratic signal, and if the iron object larger than a coin, clearly indicates that the discriminator is the iron, and the coin will be skipped. In such circumstances, obviously, the smaller the diameter of the search coil, the more you will finds and less passes because debris blocked a nonbinding goals.

How to choose a metal detector coil

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