Cherry Picker
Forum Supporter
Just my opinion, but I have yet to see any detector that can have multiple targets under the coil and still have an accurate VDI. Heck, they are lucky to get just one right LOL.
Vortex
- Thread starter daddyflea
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Carl-NC
Senior Member
As I said, when coins are stacked on top of one another, no, you can never ever separate them. Always a blended response. But if the coins are separated, they can appear under the coil "at the same time" (say, 2 coins 2" apart as a 10" coil sweeps over) and the detector can distinguish them. The ID you get for each depends on a lot of factors. The actual distance between the coins, their depths, their independent IDs, the speed of the detector's filters, size of the coil, for examples. Distance and depth are biggies, as 2 coins spaced 2" apart may be somewhat easy to pick apart if they are really shallow, but as they get deeper the signals will blend more. It's a geometry problem. If those coins are a nickel and a quarter then you are more likely to see 2 distinct ID blocks than if they are a cent and a dime. Even then, the nickel ID is likely to be pulled up by the quarter, and the quarter ID pulled down by the nickel. The point is, a number of detectors have the ability to indicate that you just swept over 2 very close targets. It's not perfect and it's subject to a lot of factors that affect the IDs but, in the spirit of what the OP was asking, it's possible.
Diga
Elite Member
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Yep. That was my point because of the blending.
Like Carl said, we're arguing semantics lol.
Cherry Picker
Forum Supporter
The Minelab E-Trac/CTX are the only detectors I've owned that could display more than one VDI. I used the ferrous (FE) more than I used the conductive (CO) in our city park. Why no one has pursued that option and improved on it is beyond me.
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beamwalker
Full Member
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Heres an idea, if it gives a nice clean signal, dig it, and check the hole for more targets
stetam
Elite Member
By George your a genius!!
Well canslaw pull-tabs aluminum rivets and a host of other things give clean signals when hunting in human garbage I prefer not to go home with a pouch of garbage and a sore hand . sube
Where I hunt this is impossible. I even cringe when I have a coin spill and ultimately tear up my plug.
Rock Jock
Elite Member
Here's a question. My AT Max is advertised as having a "knife edge" scan with its double "D" coil. Say you have two targets, one masking the other (directly atop the other). One is a copper coin and the other is a silver coin. One is an inch below the surface and the other is seven inches below the surface. With a "knife edge" scan would I be able to get two distinct signals, owing to the vertical separation, if I tilted the coil to scan obliquely to accentuate (side step?) the vertical separation, and would the two signals have differing readings on the VDI? Does the Vortex also have a "knife edge" scan?
I used to run an ETRAC and it was terrible about falseing on nails. I had to run the Ferrous pretty high to stop that.
chillforlife
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Antics with microsemantics.
StanTheManStan
Senior Member
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According to a new video that just came out, there may be more going on than that.
Tesoro Outlaw 1800's Silver Six Pence & Homosexual Eddy Currents
Yep. And you were the lead arguer.
Remember detector coil has to move to work.
Manticore can show nonferrous and iron in screen at the same time. While both are inside the field of the coil.
Yes but two targets displayed?
