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Treasure Hunting
Treasure, Coin and Relic
what detector to take to Scotland?
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<blockquote data-quote="grubstake" data-source="post: 642127" data-attributes="member: 4012"><p>Firstly, PI machines are NOT "better at finding targets than any VLF machine", in fact the reverse is true, as noted by Bruce Candy himself when the VLF-based GPZ7000 was released. What PI machines are good at is avoiding the loss of depth which mineralisation causes for other VLFs and since gold in Australia is usually associated with high iron mineral levels in the soil, that feature gave PI's a big advantage here.</p><p></p><p>Secondly, from videos I've seen of British treasure hunting, a major problem is the proliferation of metal targets. Civilisations using metal have been living and hunting and fighting there for thousands of years since the Bronze Age. Their conflicts have raged all over the UK, hence the numerous hill forts, castles, abandoned townsites, etc. The best of these locations for relics, will often present multiple signals for each coil swing, so effective discrimination is essential. Multi-frequency VLFs in particular shine in these conditions, as they provide not just discrimination but also a means of target identification that can help lessen needless digging.</p></blockquote><p></p>
[QUOTE="grubstake, post: 642127, member: 4012"] Firstly, PI machines are NOT "better at finding targets than any VLF machine", in fact the reverse is true, as noted by Bruce Candy himself when the VLF-based GPZ7000 was released. What PI machines are good at is avoiding the loss of depth which mineralisation causes for other VLFs and since gold in Australia is usually associated with high iron mineral levels in the soil, that feature gave PI's a big advantage here. Secondly, from videos I've seen of British treasure hunting, a major problem is the proliferation of metal targets. Civilisations using metal have been living and hunting and fighting there for thousands of years since the Bronze Age. Their conflicts have raged all over the UK, hence the numerous hill forts, castles, abandoned townsites, etc. The best of these locations for relics, will often present multiple signals for each coil swing, so effective discrimination is essential. Multi-frequency VLFs in particular shine in these conditions, as they provide not just discrimination but also a means of target identification that can help lessen needless digging. [/QUOTE]
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Treasure Hunting
Treasure, Coin and Relic
what detector to take to Scotland?
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