Five more nuggets from 1 gully Thursday 03/19/2015


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The GPZ7000 is amazing.

I found this virgin gully about 10 years ago. Absolutely no trash. I took 6 nuggets out of it the day I found it.

Ever since then I have been back with every detector and every coil that has come down the line with no success. I even tried the SDC2300 in it about 5 weeks ago. Nothing.

So Friday the 13th, it was towards the end of the day and I quickly went through the gully again and found two that I posted before.7 grams and .1 gram. I know I would not have heard the .7 gram with the SDC2300 and I know I ran the SDC2300 over the spot where I got the .1 gram nugget. So I either missed it or it did not hear it,

Wednesday I got out early, determined to work this gully really slow with the GPZ7000. Started at about 7am and by 11:20 am I had five more nuggets.

In all honesty I can say that 2 of the little ones were shallow enough that I think the SDC2300 would have got them. However, it was right at the beginning of the gully and slightly out of the gully and I had not gone up that far with the SDC2300. Little dinky .1 gram nuggets.

The most impressive of the 5 nuggets was another ,7 gram that I dug at a good 14 to 15 inches nestled down in the cracks of some quartz.

I took videos of all finds and I will post them soon.

Here are a few pictures.

Doc

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Hey DOC, looks like your success with the GPZ is continuing. A friend of mine is using his GPZ in NV near Winnemucca and having some issues on EMI and quieting it down, here are his words:

"I've read all the articles, seen all the videos. Done resets, restarts, redundant autotunes, manual tunes, tried every setting. The issue is EMI, not ground balancing, it's ground balancing fine. I can quiet it down by using audio smoothing but then the issue is that it's no deeper and barely more sensitive than my 4500 with a lot of audio smoothing applied to the GPZ. Which means that to make it a stable machine it's about equal to my old 4500 except twice as heavy so at this point kinda let down with it all."
Any thoughts and tips on how to help him out with EMI and audio noises? He likes the stable audio of the GPXs. I'm curious also, going to head out there soon. Thanks,
Bill
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What is he running his sensitivity at? He needs to take it down to 9. I have been using LOW SMOOTHING and with the depth I am getting I don't think the LOW setting is having that much of an effect on the depth.

However, that Winnemucca area has always been an EMI hotspot. I remember the times I have been at Rye Patch and it was always annoying.

I guess the only way to really get to the bottom of this would be if he had someone else up there that also has a GPZ7000 with whom he could compare the behavior of the detector, and the settings. If the other person has his set up and it is running smoothly and he uses the same settings and his still has issues then maybe we are looking at a funky GPZ7000??

Really hard to diagnose things from afar.

Sorry I don't think that is much help.

Doc

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Hey CoBill,

A bunch of my friends are up in that region now with the GPZ's they purchased from me and none of them are having issues. They are finding a bunch of gold, mostly smaller stuff at depth. A few piece near a 1/4 ounce, but all say the units are running really smooth and quiet.

Like Doc mentioned, keep the Gain down a bit if you can. Many believe by cranking the Sensitivity up to 20, they get the best performance. I'm hunting in the range of 8-11 and finding nuggets really deep, small and up to 1/3 ounce so far.

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Dang I can't justify spending this much for a metal detector! I have purchased every new Minelab super detector since the gp3000. If this detector was priced at any sort of reasonable price, I would buy one. I was prepared to spend up to 7k for this new beeper, but h@ly sh!t, 10K! No thanks. I truely hope that Minelab reduces the price for these in the near future.

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That's not going to happen, but think of how much more business Minelab could have made if they had priced it at around $7500.00. I think that they went for the international market and forgot about the locals. Africa, China, etc. will snap them up in droves right away but what about us. I think that they have made a big mistake in pricing, the market will fall off fast.

Old Tom

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Doc & Rob, apparently he was running his sensitivity too high...when he lowered it to the 8 - 11 range, the GPZ settled down to a reasonable level. I think he was expecting the quiet threshold of the GPXs....but the GPZ "hot detector" threshold in NV takes some time to get used to. :D

Matt- call around to the ML dealers, you can find a better price than $10K.

Bill

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Here is a tip to try ... as most hunters don't really understand sensitivity. Optimum sensitivity is not always maxed out and in fact is rarely maxed out. No matter your detector PI or VLF ... high dollar or low dollar try something new. Everyone says to max it out and work it down to where it smooths out. I do just the opposite ... I start at the lowest setting and while swinging the detector in a target free area I very slowly turn up the sensitivity letting the machine catch up to each change before I move higher. I continue until the threshold just starts to wobble a little bit. I generally leave it there ... but others that want a silky smooth threshold should then ratchet back down one step.You must do this slowly and wait a few seconds after each change for the machine to adjust. Try it ... You may like it! Mikey likes it! :)

Mike f

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I have had no issues with the GPZ with EMI and have quite a bit of time running it in the Winnemucca area. The GPZ is inherently noisier than the GPX, not as much as the SDC 2300 but still not smooth as butter like the GPX can be. I always run my GPZ with smoothing off. The machine is very hot - there is no need to get crazy with the Sensitivity. Keep it near default settings until you get used to the machine.

It appears to me experienced GPX users are having the harder time with the GPZ because they keep trying to make it run like a GPX. It is totally new technology, it is not a PI, and needs to be learned in its own right. I highly recommend anyone starting out use the default settings for awhile. I am fairly experienced using different detectors and I did exactly that initially. Do not be on too much rush to push the detector outside your comfort zone or you will have problems.

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Steve ... I have to agree with you on this ... not to say that I disagree with everything else you say! :) . I don't have many hours on my GPZ but I did find that I could not make it as smooth as I was used to with the GPX5000. However ,,, having said that I have had no trouble hearing targets through the little bit of 'noise' in the threshold. At first I was turning the gain up beyond the default like I do most times with the GPX but yesterday in a wash between two steep canyon walls I found that a little less was actually more ... and I don't use smoothing either. So far I am loving this machine. And the wireless speaker attached to the harness just below my right 'good' ear sure makes it a great setup.

Mike F

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