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GPZ7000 19" coil GPZ19 information and questions
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<blockquote data-quote="BigWave" data-source="post: 294267" data-attributes="member: 6786"><p>I'd rather detect (or procreate) than fight any day. I don't own a Zed (just a 5 yo 4500 - bloody brilliant machine), but am planning to, so I read a lot about it on numerous forums and love the passion and opinions.</p><p>I realise that an air test has its limitations and is only a rough guide, however where I understand that air testing really falls over is in comparing the 14" & 19" GPZ coils with larger targets.</p><p>In heavily mineralised grounds (viz the GT), I'm hearing that the 19" is way more tolerant to the point that you can generally change back from Difficult (with the 14") to Normal (with the 19"); keep a higher sensitivity and punch significantly deeper. This seems to be where it shines and makes air testing invalid.</p><p>I was amazed that the 19" Zed doubled my 4500 with 14*9 Evo running hot on a 0.6g target!</p><p>I also hear that the Vic GT has some of the most highly mineralised ground in Australia, so the 19" Zed would shine there if anywhere.</p><p>Also in air testing, EMI is worse for the larger coil above the ground due to its size, but this EMI generally drops off when moved closer to the ground (ground shielding).</p><p>I'll continue to avidly read this thread (less the bashings), and if proven wrong, will thank the contributors and will not invest in the 19" when I finally save enough to buy a Zed.</p><p>I'll also remind you all that we are discussing the <strong><u>World's</u></strong> best hobbyist gold detector - proudly Australian designed.</p></blockquote><p></p>
[QUOTE="BigWave, post: 294267, member: 6786"] I'd rather detect (or procreate) than fight any day. I don't own a Zed (just a 5 yo 4500 - bloody brilliant machine), but am planning to, so I read a lot about it on numerous forums and love the passion and opinions. I realise that an air test has its limitations and is only a rough guide, however where I understand that air testing really falls over is in comparing the 14" & 19" GPZ coils with larger targets. In heavily mineralised grounds (viz the GT), I'm hearing that the 19" is way more tolerant to the point that you can generally change back from Difficult (with the 14") to Normal (with the 19"); keep a higher sensitivity and punch significantly deeper. This seems to be where it shines and makes air testing invalid. I was amazed that the 19" Zed doubled my 4500 with 14*9 Evo running hot on a 0.6g target! I also hear that the Vic GT has some of the most highly mineralised ground in Australia, so the 19" Zed would shine there if anywhere. Also in air testing, EMI is worse for the larger coil above the ground due to its size, but this EMI generally drops off when moved closer to the ground (ground shielding). I'll continue to avidly read this thread (less the bashings), and if proven wrong, will thank the contributors and will not invest in the 19" when I finally save enough to buy a Zed. I'll also remind you all that we are discussing the [b][u]World's[/u][/b] best hobbyist gold detector - proudly Australian designed. [/QUOTE]
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GPZ7000 19" coil GPZ19 information and questions
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