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TDI Pulsescan modifications AND BIG coils
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<blockquote data-quote="AVXVA" data-source="post: 632673" data-attributes="member: 22410"><p>Another question, a little off topic, but I thought I would ask.</p><p></p><p>I've notice a HUGE DIFFERENCE with both the TDI and VLF (ETrac) detector when detecting old, large iron. With the ETrac big iron objects scream at extreme depth--it's incredible. And also, there is a detectable halo around long buried iron objects, you can be 4-feet off-target and still be getting a signal.</p><p></p><p>Question: How much different is gold and silver coins in detectability than iron. (I've only discovered a few silver coins and they were only an inch deep.)</p><p></p><p>If three (3) samples of metal: (1) 19th century iron, (2) gold coins, (3) silver coins, each sample the size of your fist, :fistpump: were buried at 30 cm increments (30, 60, 90, 120 cm) how would the detection differ (PI and VLF) at those depths? Iron = 1st, Silver = 2nd, Place Gold = 3rd? </p><p></p><p>How deep can you detect each of these, knowing iron is super easy.</p><p></p><p>Rob</p></blockquote><p></p>
[QUOTE="AVXVA, post: 632673, member: 22410"] Another question, a little off topic, but I thought I would ask. I've notice a HUGE DIFFERENCE with both the TDI and VLF (ETrac) detector when detecting old, large iron. With the ETrac big iron objects scream at extreme depth--it's incredible. And also, there is a detectable halo around long buried iron objects, you can be 4-feet off-target and still be getting a signal. Question: How much different is gold and silver coins in detectability than iron. (I've only discovered a few silver coins and they were only an inch deep.) If three (3) samples of metal: (1) 19th century iron, (2) gold coins, (3) silver coins, each sample the size of your fist, :fistpump: were buried at 30 cm increments (30, 60, 90, 120 cm) how would the detection differ (PI and VLF) at those depths? Iron = 1st, Silver = 2nd, Place Gold = 3rd? How deep can you detect each of these, knowing iron is super easy. Rob [/QUOTE]
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Metal Detectors
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TDI Pulsescan modifications AND BIG coils
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