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Metal Detectors
Minelab
GPX5000 Setting Variations Between Coils?
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<blockquote data-quote="PhaseTech" data-source="post: 472327" data-attributes="member: 3149"><p>It really depends on the ground. Big coils are less sensitive to surface mineralisation, so in an area with zippy hot rocks, the smaller coil will always run noisier. But if the ground is mineralised at depth, particularly deep clays, wet ground etc. then the larger coil is seeing more ground per sweep, so may struggle with dealing with it all. A smaller coil will usually run better in this instance as it is seeing a smaller "chunk" of dirt. To make the larger coil happy, reducing the Gain is the first step, but also a faster motion setting can help to reduce broad ground signals. </p><p></p><p>As Pat said, conditions change all the time, so listen to what your detector is telling you and make small changes as required.</p></blockquote><p></p>
[QUOTE="PhaseTech, post: 472327, member: 3149"] It really depends on the ground. Big coils are less sensitive to surface mineralisation, so in an area with zippy hot rocks, the smaller coil will always run noisier. But if the ground is mineralised at depth, particularly deep clays, wet ground etc. then the larger coil is seeing more ground per sweep, so may struggle with dealing with it all. A smaller coil will usually run better in this instance as it is seeing a smaller "chunk" of dirt. To make the larger coil happy, reducing the Gain is the first step, but also a faster motion setting can help to reduce broad ground signals. As Pat said, conditions change all the time, so listen to what your detector is telling you and make small changes as required. [/QUOTE]
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Metal Detectors
Minelab
GPX5000 Setting Variations Between Coils?
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