Could I spot some can slaw using a metal detector vs a gold ring? Even if the 2 read identical ID in meter for ID when sweeping? Hmm

[tnsharpshooter]

I just might be able to. Or at least be able to determine such target heard has low to zero chance of being gold ring.
I put up a video few minutes ago showing Deus 2 hf2 coil.
Folks might want to watch.
I am not pimping my you tube channel by doing this.
Would take a lot of typing to show this in long land.
I try to help members out here. That’s all.

 

[tnsharpshooter]

I have done another night time video showing hf2 coil in action.
It will be up in few minutes.
Pull rings, gold ring, square tab, can slaw, even folded once and twice shown.

 

[Cherry Picker]

Is the HF2 available yet?

 

[tnsharpshooter]

Is the HF2 available yet?

Is has been released in USA for a while. Seems though available coils are lacking in USA. Some folks have been commenting on being on pre order lists for a long time. Some have also recently received their coils after being on preorder lists for long time.
I got my coil straight from France.
I didn’t pay for mine.
Been using some and testing.
And sharing stuff.
Takes a long time to look at some thing like this.
So I have a lot of time in this coil. More time likely than the coil is worth or cost.

 

[tnsharpshooter]

Preliminary in ground results using gold ring and folded up can slaw comparing show some promise.
Video showing will be up soon.

 

[Diga]

TNS,

We all know that parks, sports fields, etc, contain plenty of gold jewelry. Too bad it's just about impossible to get due to the far greater amounts of aluminum trash.

As many members here know, I'm obsessed with finding a way to get that gold and have often posted that I won't buy another detector unless it has the ability to distinguish between gold and aluminum. I've also tried to think of ways that current technology could perform such a valuable task.

One way I thought of, was comparing the ID spread on aluminum trash and gold rings when using a very low frequency such as 1khz to a very high frequency such as 100khz. I thought there would be a good chance that the ID spread when doing so would be different between gold and aluminum due to the different conductivity of those. In fact, about a year ago I wrote a post on this forum proposing said method. I ended that post by asking, "Would that work, or did I just inadvertently describe how SMF works? Metal detector developer Carl Moreland replied with something like, "Yes. You pretty much just described SMF". Based on Carl's reply, I didn't even test my theory.

I have no idea if you saw my post about the theory, but fast forward to now and I see your videos are testing that theory and the results look very promising. I'm now a little pissed that I didn't try that theory a year ago, but glad that you also thought of the theory and are testing it out.

When I have some time later tonight, I'll do similar tests as yours with my Legend. I'll test using all three SMF modes, as well as the lowest SF of 4khz and the highest of 40khz. Although that might not be enough of a frequency spread to expose a useable ID spread.

 

[Cherry Picker]

TNS,

We all know that parks, sports fields, etc, contain plenty of gold jewelry. Too bad it's just about impossible to get due to the far greater amounts of aluminum trash.

As many members here know, I'm obsessed with finding a way to get that gold and have often posted that I won't buy another detector unless it has the ability to distinguish between gold and aluminum. I've also tried to think of ways that current technology could perform such a valuable task.

One way I thought of, was comparing the ID spread on aluminum trash and gold rings when using a very low frequency such as 1khz to a very high frequency such as 100khz. I thought there would be a good chance that the ID spread when doing so would be different between gold and aluminum due to the different conductivity of those. In fact, about a year ago I wrote a post on this forum proposing said method. I ended that post by asking, "Would that work, or did I just inadvertently describe how SMF works? Metal detector developer Carl Moreland replied with something like, "Yes. You pretty much just described SMF". Based on Carl's reply, I didn't even test my theory.

I have no idea if you saw my post about the theory, but fast forward to know and I see your videos are testing that theory and the results look very promising. I'm now a little pissed that I didn't try that theory a year ago, but glad that you also thought of the theory and are testing it out.

When I have some time later tonight, I'll do similar tests as yours with my Legend. I'll test using all three SMF modes, as well as the lowest SF of 4khz and the highest of 40khz. Although that might not be enough of a frequency spread to expose a useable ID spread.

I like the theory Diga. Sounds possible.

Like I said, one of the reasons I like the Deus for tot lotting, schools and parks, is what seems like a much wider spread in the lower VDI spectrum. On both my Deus 1 & Deus 2 iron stays in the 01 to 05 range, and most foil stays in the 15 to 32 range, while gold, no matter the size, mostly is 35 and above. Doesn't eliminate aluminum, but it really cuts out a lot of trash.

Most other detectors give a low 05 or 08 type VDI on gold. Same as foil.

 

[Beachhunt1]

I just might be able to. Or at least be able to determine such target heard has low to zero chance of being gold ring.
I put up a video few minutes ago showing Deus 2 hf2 coil.

No, and VERY MUCH NO. Your test does not include black sand content or ocean salt content.

 

[Diga]

CP,

I once asked Carl if he was aware of any metal detector developers that have specifically looked into ways current technology can distinguish between gold and aluminum. He replied with, "Not that I know of".

I was taken aback by his reply, because just about every hunter I know would pay just about anything for a detector that can do that. Yet, the developers don't even seem to be thinking about it? Whaaa??

 

[tnsharpshooter]

No, and VERY MUCH NO. Your test does not include black sand content or ocean salt content.

I never said anything about black sand.
Actually if you will the videos I make reference to this process I am showing likely restricted when used in high mineral dirt environment.
Could what I am showing have some use on fresh water beach….hmmm. Maybe
How about dry sand on salt beach? Maybe.
I’m just a hick from the sticks showing folks the detector tendency with hf2 coil v3.10

Cheers

 

[tnsharpshooter]

I’m no engineer. Just a hick from the sticks.
Who happens to be a crack shot with a rifle.
And shows metal detector tendency.
That foam and those 2x4s are bad azz ain’t they.
Don’t none of you critics use what I am showing here with this coil. Surely you wouldn’t, right? I wonder….

 

[Diga]

TNS,

I only skimmed through your videos, but it looks like you just tested in SFs. Did you check if there was a similar ID spread difference going from a low to high SMF mode?

If the method works, here's a neat way it could be incorporated into a metal detector:

The detector pulses at 1khz and gets an ID on the target (A).

The detector then pulses at 100khz and gets an ID on the target (B).

The difference between A and B is calculated as C. Based on C, the detector then shows the probability of the target being gold. Of course, it's never going to be 100%, but I'd be happy with even 10% accurate, because that would mean 1 in 10 targets I dig would be gold.

 

[tnsharpshooter]

TNS,

I only skimmed through your videos, but it looks like you just tested in SFs. Did you check if there was a similar ID spread difference going from a low to high SMF mode?

If the method works, here's a neat way it could be incorporated into a metal detector:

The detector pulses at 1khz and gets an ID on the target (A).

The detector then pulses at 100khz and gets an ID on the target (B).

The difference between A and B is calculated as C. Based on C, the detector then shows the probability of the target being gold. Of course, it's never going to be 100%, but I'd be happy with even 10% accurate, because that would mean 1 in 10 targets I dig would be gold.

Comparing 29 kHz MF band to 89 kHz MF band won’t yield the ID disparity vs using the 29khz band and 88.3 kHz frequency will. Just looking at the gold rings I have tells me this.

Bet ole Minelab will see this. Reckon..
I did send email to Xp owner and his software guru with 3 video links with explanation of what I was seeing. To share with them.
To my knowledge noone else has showed what I have here.
I have seen no videos, comments made by other folks, nor has anyone relayed to me this behavior I have noted.

 

[Diga]

Comparing 29 kHz MF band to 89 kHz MF band won’t yield the ID disparity vs using the 29khz band and 88.3 kHz frequency will. Just looking at the gold rings I have tells me this.

I figured as much, because even though MF is weighted to a particular frequency, it doesn't behave the same as a particular SF.

Is that the lowest and highest SF that the D2 allows? If not, what is, and did you try the lowest and highest?

 

[tnsharpshooter]

I figured as much, because even though MF is weighted to a particular frequency, it doesn't behave the same as a particular SF.

Is that the lowest and highest SF that the D2 allows? If not, what is, and did you try the lowest and highest?

I am using lowest MF band of 29 kHz, and comparing to mono single freq 88.3.
Deus 2 allows for single freq to be run as high as 120 kHz.
If one uses say 63,5 kHz I don’t think the ID spread is as pronounced.
There are freqs between 63.5 snd 88.5 kHz though for use.
I am not 100 percent sure 88.3 kHz is best single freq to use, so far I like what it is doing though. I have looked at with 111 kHz.

 

[tnsharpshooter]

Video is up showing ID tendency looking a various configurations of Reynold wrap foil.
Gold ring snd nickel also shown.

 

[Cherry Picker]

Those are some big A$$ pieces of foil. I can't say I've ever dug'em that big. I'd put them under pieces of aluminum. The foil I find, in the 15 to 32 VDI range, is like a piece of gum, or a candy kiss size.

Aluminum = canslaw or pull tab types.
Foil = Piece of gum or candy wrapper types.

 

[tnsharpshooter]

Those are some big A$$ pieces of foil. I can't say I've ever dug'em that big. I'd put them under pieces of aluminum. The foil I find, in the 15 to 32 VDI range, is like a piece of gum, or a candy kiss size.

Aluminum = canslaw or pull tab types.
Foil = Piece of gum or candy wrapper types.

Yes. But they read in gold ring range. Yet ID behaved differently. That one piece read 42 MF. Likely getting close to bottom of gold ring range. Yet notice its behavior id wise checking with 88,3 kHz. Smart money says to pass on that thing. Instead of digging hoping. Like most folks do with other model detectors and coils.

My intent is focused on gold rings.
Not other possible desirables made of gold p, etc that may read low and be smaller than smaller gold rings.

Btw there’s a park about 12 miles from me. It is eat up with foil off of grillls, bigger, medium sized and smaller.
I may take this coil there soon and play around some.
Really practically wall to wall in places I suspect.

 

[Diga]

The ID spread may also depend on the coil size. It may also depend on the frequency range itself, and not just the amount of difference in the frequencies used. For example, there may be little to no ID spread using 5khz and 40khz, and a lot of ID spread using 30khz and 65khz, even though there is 35khz difference between both those examples.

 

[stetam]

It’s impossible to distinguish just dig it all. Don’t believe the hype. XP does not make a miracle detector .