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Gold Prospecting
Gold Maps & Resources
Gold, Gem and Treasure (GG&T) Magazine - Interesting articles & other info
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<blockquote data-quote="BigWave" data-source="post: 229769" data-attributes="member: 6786"><p>I've pondered how to build a GPR for years, but have gotten no closer - figured I was dreaming. Did play with similar at Davis Base in the Antarctica (on the ice cap) in 1980 for measuring ice depth over bedrock. Never got permission to operate whilst flying, so its operation was limited.</p><p></p><p><img src="https://www.prospectingaustralia.com/forum/img/member-images/6786/1455425625_ice_radar.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>The main issue (apart from price) is that you have to go very high in frequency to get the resolution, and with higher frequency comes less penetration. I've done my own SWAGs for small nuggets 1~2cm, and figured I'd be better off with my 4500.</p><p></p><p>Best get Tim on here to invent one.</p></blockquote><p></p>
[QUOTE="BigWave, post: 229769, member: 6786"] I've pondered how to build a GPR for years, but have gotten no closer - figured I was dreaming. Did play with similar at Davis Base in the Antarctica (on the ice cap) in 1980 for measuring ice depth over bedrock. Never got permission to operate whilst flying, so its operation was limited. [img]https://www.prospectingaustralia.com/forum/img/member-images/6786/1455425625_ice_radar.jpg[/img] The main issue (apart from price) is that you have to go very high in frequency to get the resolution, and with higher frequency comes less penetration. I've done my own SWAGs for small nuggets 1~2cm, and figured I'd be better off with my 4500. Best get Tim on here to invent one. [/QUOTE]
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Gold Prospecting
Gold Maps & Resources
Gold, Gem and Treasure (GG&T) Magazine - Interesting articles & other info
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