Coil size?

Is a bigger coil better and why?

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There is a practical limit, though, Homefire and Bassboy. You can't expand to the point where you have only a single wire in a loop nor can you drive a 1 meter coil with a standard detector. You have to boost the power or the thing won't detect metal deeper than 10 inches. Even then, it would have to be the size of an engine block. Even randomly wrapping 20 turns in a huge coil puts the impedance and resistance way over the specs of any hand held detector.

This is unfortunately a fool's quest. It always has been. If you want to use a large coil, you have to design your detector around the coil requirements, not the other way around.

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Coil size is very relative to the area being hunted and the type of hunting your doing. The dirt in some areas cause larger coils havoc sometimes and you are are forced to use smaller coils, also the type of detecting you are doing at the time beach hunting, relic and/or coin hunting plays a big part in coil size. Another factor is the amount of trash in the area. High trash might mean smaller coils for better target separation. This is why most of have more that two coils for each detector unless your detectors use the same coils.

Good Diggin................Randy 

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