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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: 530437" data-attributes="member: 13488"><p>There is no need to mix each channel as the signals are mono - they are split in the GPX battery audio circuitry to form a "stereo" signal. </p><p></p><p>Using the oscilloscope you will not be able to tell the difference between metals ( I have done this many, many times lol). Being a PI machine, the audio output does not have differing signals for metal types. The audio is generated by a VCO. The voltages used to drive the VCO do not vary due to metal type. In basic terms a PI machine is a time based circuit. Hard to describe without going into full detail on how a PI machine works.</p></blockquote><p></p>
[QUOTE="steelPHASE, post: 530437, member: 13488"] There is no need to mix each channel as the signals are mono - they are split in the GPX battery audio circuitry to form a "stereo" signal. Using the oscilloscope you will not be able to tell the difference between metals ( I have done this many, many times lol). Being a PI machine, the audio output does not have differing signals for metal types. The audio is generated by a VCO. The voltages used to drive the VCO do not vary due to metal type. In basic terms a PI machine is a time based circuit. Hard to describe without going into full detail on how a PI machine works. [/QUOTE]
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Gold Prospecting
Metal Detecting for Gold
GPX Audio Question (Limited English).
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