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Metal Detectors
Minelab
Questions about prices and certain functions
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<blockquote data-quote="PhaseTech" data-source="post: 674467" data-attributes="member: 3149"><p>Visual vs Audio responses. </p><p></p><p>A visual response is easy on a coin machine (if you use conservative settings) because it is generally silent and goes beep when you go over a coin. </p><p></p><p>On a gold detector, unfortunately the days of 3 gram nuggets sitting on the surface are long gone. What we are looking for these days is smaller and deeper, and less responsive gold like reef gold or complex species. As a result detectors need to be more and more sensitive, and the audio needs to be less filtered in order to generate any kind of response on these pieces. What this means is that we are no longer presented with a nice stable threshold. (GPZ7000 in High Smoothing is an exception). </p><p></p><p>The threshold talks to you, and often a signal response is a little blip in amongst the chatter which is a very slight tone change, and only just repeatable. Sometimes it isn't even really a signal, it just peaks its head up enough to temporarily smooth the threshold out. Your ears are much more sensitive to these kind of subtle changes than your eyes. If you were only looking at the waveform coming out of your detector, I think you would walk over half the targets.</p></blockquote><p></p>
[QUOTE="PhaseTech, post: 674467, member: 3149"] Visual vs Audio responses. A visual response is easy on a coin machine (if you use conservative settings) because it is generally silent and goes beep when you go over a coin. On a gold detector, unfortunately the days of 3 gram nuggets sitting on the surface are long gone. What we are looking for these days is smaller and deeper, and less responsive gold like reef gold or complex species. As a result detectors need to be more and more sensitive, and the audio needs to be less filtered in order to generate any kind of response on these pieces. What this means is that we are no longer presented with a nice stable threshold. (GPZ7000 in High Smoothing is an exception). The threshold talks to you, and often a signal response is a little blip in amongst the chatter which is a very slight tone change, and only just repeatable. Sometimes it isn't even really a signal, it just peaks its head up enough to temporarily smooth the threshold out. Your ears are much more sensitive to these kind of subtle changes than your eyes. If you were only looking at the waveform coming out of your detector, I think you would walk over half the targets. [/QUOTE]
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Metal Detectors
Minelab
Questions about prices and certain functions
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