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Gold Prospecting
Metal Detecting for Gold
GPX Audio Question (Limited English).
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<blockquote data-quote="steelPHASE" data-source="post: 530458" data-attributes="member: 13488"><p>Unfortunately the GPX does not put out different frequencies to indicate different materials.</p><p></p><p>It uses a VCO to generate audio. The voltage supplied to the oscillator varies depending on the depth/size/and to a small degree, composition. The issue is that a small round bit of gold will sound like a small piece of lead. A shallow screamer of a nugget will sound like a shallow ferrous target. Porous, reefy gold can sound like bits of brass or thin wire. </p><p></p><p>With a PI detector there is NO way of accurately differentiating targets. The first manufacturer able to achieve this will make a fortune.</p></blockquote><p></p>
[QUOTE="steelPHASE, post: 530458, member: 13488"] Unfortunately the GPX does not put out different frequencies to indicate different materials. It uses a VCO to generate audio. The voltage supplied to the oscillator varies depending on the depth/size/and to a small degree, composition. The issue is that a small round bit of gold will sound like a small piece of lead. A shallow screamer of a nugget will sound like a shallow ferrous target. Porous, reefy gold can sound like bits of brass or thin wire. With a PI detector there is NO way of accurately differentiating targets. The first manufacturer able to achieve this will make a fortune. [/QUOTE]
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Gold Prospecting
Metal Detecting for Gold
GPX Audio Question (Limited English).
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