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  | THE MINELAB EXPLORER II  | 
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Discrimination | •  | The horizontal dimension (or axis) rates the extent of the  | 
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  | object’s resemblance to ferrous characteristics.  | 
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Discrimination is the ability of a  | •  | The object’s   | 
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  | ‘target crosshair’ inside the rectangular display area.  | 
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metal detector to identify the user’s  | 
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desired target (e.g. jewelry) and  | 
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eliminate signals from unwanted  | 
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material (e.g. nails).  | Interpreting target responses | 
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The Explorer II can be programmed  | Conductivity | 
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in a number of ways to discriminate  | •  | Objects with high conductivity (e.g. large silver coins, copper  | 
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against unwanted targets in different  | 
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  | items) will cause the target crosshair to appear at the top of | 
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types of ground.  | 
  | the Smartfind screen.  | 
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  | •  | Objects with low conductivity (e.g. small alloy coins, foil) will  | 
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  | cause the target crosshair to appear at the bottom of the  | 
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  | Smartfind screen.  | 
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  | Along with the type of metal, the size of objects will have some  | 
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  | effect on the conductivity rating for targets. Generally, the larger  | 
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  | the target, the higher the corresponding conductivity rating (and  | 
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  | proximity of the target crosshair to the top of the screen).  | 5  | ||
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  | to appear on the left of the screen unless its rating would  | QUICKSTART  | |
  | Ferrous content | 
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  | •  | Objects with high ferrous content cause the target crosshair  | 
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  | situate the object in the dark area of the discrimination pattern  | 
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  | (see page 44).  | 
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  | •  | Objects with low ferrous content (e.g. jewelry, coins) cause  | 
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  | the target crosshair to appear on the right of the screen.  | 
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  | The preset discrimination setting is designed to search for Coins.  | 
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  | NOTE  | Both ferrous and   | 
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  | degrees of inductive response to electromagnetic waves.  | 
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  | This characteristic – in addition to conductivity – allows for  | 
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  | more accurate identification of targets.  | 
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  | 43  | 
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  | QUICKSTART’S SMARTFIND DISPLAY  | 
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