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Pinpointing/ Target Tracing


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Hey everyone, I've been swinging the equinox since I got it in February, moved up from simplex, and been loving it since, despite a rocky start

I've found a small bit of gold, and been killing it on silver.  I bought a couple of Clive James clinick's books. Skill building, and gold jewelry hunters handbook. I found both to be helpful. 

I am running into a bit of trouble understanding target tracing/pinpointing. 

When I first get a target I can tell if it's huge by the sound, but for regular targets, in pinpoint, I'm getting better at telling the size, but still having trouble. Everything still sounds largeish. 

Clive talks about tracing the outline of a target in pinpoint to ",see the shape" but I'm stuck there. Everything is just blob shaped, with no real definition.

I've noticed on some YouTube videos when they are showing the response to a target, the sound is super quiet.

I'm wondering if I'm just running the volume too high (21 on the machine, and a couple down from Max on headphones. I'm using the equinox ones). Or too high sensitivity (average of 18 in my parks)

Could someone make a YouTube demo on target tracing?

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No Video But it not complicated --

The pinpointing on the Nox just basically has a Zero point set when you push the pinpoint button,

SO, put the coil a few inches away from where you think the target is, move slowly in whatever directing it takes to increase the signal, as you get closer hit the button again to Re-Zero it at that point, repeat as you get closer until you are centered over the target, at this point you have De-Sensitized to a point where the signal is only heard directly over the target. BE SURE to keep the same height as you are pinpointing.

As for Size -- I often just lift the coil to see how high up the signal can be detected with the same settings, the bigger target the greater depth from the coil it can be detected, this gives you a general idea of size, widening a swing around the target will give you an idea of shape, especially if it's long and narrow, such as a buried pipe.

You can also use the pinpoint to trace edges of larger targets using same basic techniques as pinpointing, just pay attention to when you get a signal near the edges of the target, De-sensitize as needed if too jumpy.

 

 

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Ok, so it sounds like I've been pinpointing without desensitizing, and this makes the target sound bigger. Are you guys Able to use this tracing to tell a strange shape like can slaw from say a pull tab rectangle, or a ring?

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16 minutes ago, Mr Swing king said:

are you guys Able to use this tracing to tell a strange shape like can slaw from say a pull tab rectangle, or a ring?

The signal is too processed on an Equinox to tell these differences.  I am speaking for myself. I find the pinpoint mode on the Equinox one of the worst features. For many reasons. I do all my pinpointing for removal in the horseshoe mode. 

 

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I should have said that doing the things I mentioned are best done in All Metal, And Gold Modes.

BTW, Gold Mode will By Far get you the best depth in nearly all situations, sadly it has only one tone, but the I.D readout works well in all but the worst ground.

No detector will really give you the shape of targets like pull tabs and can slaw.

But, the Nox with small coil is good at cherry picking in iron in gold mode with No Discrimination, IF you pay Close attention to the number readout, if at different angles of swing you get mostly Negative Numbers BUT one or more Consistent Positive Number popping up, there is a Good Chance there is a Non Ferris target in with that iron trash.

The exception is if the plus and minus numbers wildly jump all over well into both positive and negative numbers, in those cases it is almost always an odd shaped iron target such as Can Slaw.

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I'm not in great position to answer your question. However, after 1000+ hours of Minelab Equinox operation, including using the pinpoint function with more than half of the targets investigated, I still find it puzzling and even occasionally frustrating.  I'm glad you brought this up and I'm going to sit back and read replies before chiming it.  (I'm talking about replies which directly address the question; less interested in those that argue for other pinpoint methods even though those are 'tools' that should be in everyone's 'toolbox'.)

 

 

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I think the perception that the pinpoint function does not work well on the Nox is both Right and Wrong.

As I understand it the De-Sensitizing or Re-Zeroing during pinpointing is suppose to be automatic at least to a degree, However that Automatic Resetting works slowly and poorly. But Re-Pushing the pinpoint button as needed manually works just fine. Just remember to move towards the target slow as you repeat the Zero Point, AND be careful to kept the same height, the system essentially does not know the difference between being closer to the target side to side and up and down.  Overall manually Re-Zeroing is much like most separate pinpointers, you re-zero as you get closer to the target.

As a side note. -- that new 5x10 Coiltek coil has unusually sensitive pointed ends, by that I mean it will detect even small targets with the tips of the small ends ( just not as far away as being in the center of the coil ). SO you can often turn your coil 90 degs and use the very end of the coil as a pinpointer.!  Just keep in mind doing that will have limited depth. But that can also tell you that the target is not very deep. 

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12 hours ago, Knomad said:

As a side note. -- that new 5x10 Coiltek coil has unusually sensitive pointed ends, by that I mean it will detect even small targets with the tips of the small ends ( just not as far away as being in the center of the coil ). SO you can often turn your coil 90 degs and use the very end of the coil as a pinpointer.!  Just keep in mind doing that will have limited depth. But that can also tell you that the target is not very deep. 

Thanks for that tip. I hadn't noticed that before, but saw it happen in a sand volleyball court this week. The 10x5 picked out a tiny target in the sand that I couldn't find with my handheld pinponter. So while trying to re-pinpoint the target with the Nox, I inadvertently found it with the tip of the coil. It was a little push-on earring back for a stud earring. I tested it on my pinpointer and could only detect it if it was touching the side of the tip, and only if the flat part was touching it. The 10x5 picked it up with no problem regardless of the earring back's orientation. 

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On 10/21/2021 at 9:20 PM, Mr Swing king said:

I also remember Clive mentioned the equinox has ratcheting pinpoint? Could someone demonstrate how to do that?

I know diddly-squat about electronics, so here is my best explanation of ratchet pinpointing. This was also called (and electronically controlled by) VCO i.e. Voltage Controlled Oscillation. So this basically means the electronics are tuned to push voltage to an oscillator device (internal to the detector) --- the closer to target, the more electronic feedback (signal strength) being received drives the oscillator higher and higher in pulses. The White's XLT I used back when had a function setting that would turn off the ratcheting of VCO, but still allowed the pitch and volume to get higher when you were directly over target. I use the EQ 800 and cannot hear any 'ratcheting' but I definitely can hear the gain in volume and pitch when in pinpoint mode and I have center just in front of stem; using the 6" coil. I understand that different sized coils and designs will change the performance a bit from coil to coil. The 11" coil was and still is a mother-bear for me to pinpoint with in dense trash parks and when detecting parking strips too. Wiggle is the word with Double-D coils, so you advance forward and back, move around 20 degrees or so and repeat and where the coil comes off the sound from 2 or 3 angles, this will be the sweet spot for center. I hope this helps rather than confuses you. Happy Hunting

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