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GTP 1350 users, what's the smallest gold you can detect?

A

Anonymous

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I'm kinda curious about what the limit is for small gold with the GTP & various coils. For example, the MXT can get down to roughly a grain in all metal & running at full boost. Some of that capability is due to post processing in the DSP (it has one too). I'm wondering if the GTP also does something along those lines. It also has relevance re. beach hunting and diamond earring studs. I suppose this also applies to the GTI 1500. ..Willy.
 
Suppose it all depends on your settings and ground conditions. Have used Garretts GTA 500 thru GTI 2500 can say they do a good job even on small gold rings.
Remember MXT is actually a multi faceted gold nugget machine and Jimmy Sierra had a lot to do with its makeup.Personally if I was to hunt for gold nuggets would buy a unit make esecially for gold nuggets myself. All in all a Garrett will do as well or better as any other land coin and jewelry machine and in air tests and backyard test will only give you a ballpark figure..
 
Actually, I already have a couple of gold detectors. I'm just curious about the capabilities of the GTP. In regards to coin vs. gold machines, the first year up in Alaska I had no choice but to prospect with a CZ6a. I did incredibly well & found tiny nuggets with it using the 10.5" coil. This is from a machine that isn't used for prospecting, just coins. When it comes to air tests & sensitivity to small objects, a detector generally won't find a smaller object in the ground than in the air. It might not even get a somewhat larger one, but the airtest establishes a baseline lower limit. ..Willy.
 
The reason I ask is that the smallest gold object that can be detected establishes a baseline. I already have a couple of nugget machines, just curious about the capabilities of the GTP. I've also prospected with "coin" machines & did surprisingly well; the latest being a CZ6a w. 10.5" coil up in Alaska. It was finding pretty tiny nuggets in heavily mineralized ground (had to be run in salt mode). ...Willy.
 
Strange things happening here. Posted my message, returned 30 min. later to find nothing posted. Type up another one & when I post it I find both up on the screen. go figure. ..Willy.
 
I gotta agree with Dan-Pa. If youre gonna hunt for nuggets, then a detector set up to do that should be had.
However, the relevance to this line of thought, IMHO, is when it comes to small gold jewelry. I suggest that is what should be used to determine the limits of the 1350 - as it most likely to be employed in the seach for such things.
Since jewelry grade gold is alloyed with other metals, mostly copper, won't it behave differently than pure naturally occurring gold nuggets, anyway?
What will the 1350 do on small 10K stud earrings and little filligree gold doodads or <FONT COLOR="#ff0000">CHAINS</FONT>, as are so often lost (Im gonna discount rings for the moment as they are inherently inductive and create a greater response by virtue of that factor)?
I have just received a new-to-me 1350 <img src="/metal/html/biggrin.gif" border=0 width=15 height=15 alt=":D"> and all this and any talk of it's performance is of great interest to me.
Thanks for all the great commentary and opinion.
david
 
I just prospect so much that it becomes natural for me to rate detector sensitivity by how small of a nugget it can find. Also, whatever detector I get usually ends up in the goldfields doing double duty. There are a number of "coin" machines that do a respectable job of nugget shooting, wondering if the GTI/GTP detectors fit in that category. As to how nuggets nuggets behave compared to jewelry grade gold, it depends on the makeup. I've hunted in places where the gold ran to .99 fine & others where it was around .60. There is a wide overlap. Take, for example, my 1 grain tester nugget. It's composed of a real low quality gold & the MXT I had could barely pick it up. Up in AK, on the other hand, I was getting signals off 1/3 grainers. ..Willy.
 
I'm extremely familiar with the affects mineralization has & coil selection. ..Willy.
 
And, quite often, lying on TOP of the ground. I'm talking gold based items, not ones that leave a "halo".
 
That or something like it. Don't know how many times I've heard about a huge chunk of gold being found, only to see it later sitting in the bottom of a sample vial. 3 grains become 3 oz. And people say that iron is tricky re. perceived size. ..Willy.
 
Kinda like fishing ain't it. <img src="/metal/html/smile.gif" border=0 width=15 height=15 alt=":)">
Bill
 
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