Xtrem Hunter

[ivconic]

Carl...
One of the things you won't understand from the Russian video is that that detector also has absolutely accurate metal discrimination!
Isn't that a real engineering challenge?

[ivconic]

The guys from Ebinger tried (with little success) to copy the Russians.
This is how the EBINGER TREX 150 was born.

[ivconic]

We could go on like this for another 10 pages. But I don't think there is any need, the point is made.
What brings us together and interests us is the technology behind such devices.
Is it about the well-known 2box principle?
I would not say.
This is a step beyond that.

[Orbit]

The story I heard, etc. is not serious!
TM808 tried it, it's stupid for me personally,the so-called Bulgarian detector "Kantar" two box i also tried even bigger crap than tm 808! As for the mentioned Russian detector or Ebinger 150 I have no idea about EBINGER, and according to some sources, the Russian one comes from an older model that is based on the principle of pi technology so it was produced under the name Anker pulse! And Eclipse can tell you more about that ,although I think Eclipse mentioned somewhere that that Anker is nothing special either.

[Orbit]

https://youtu.be/rY-veK7gDUY?feature=share.
This is a Two box that, in my opinion, works much better than what I have seen so far.

[moodz]

Carl here are some achieved depths:

Maximum detection depth 5 m
Depth of detection of the OFAB-250 aviation bomb 3.1 m
Depth of detection of an artillery shell of 100 mm caliber 1.8 m
Depth of detection of an artillery shell of caliber 152 mm 2.2 m



This is older model.
The one I posted earlier is latest model and with depths up to 10 meters.
And price is 12 000 euros.
Now... we don't talk here about diy made by any of us; we talk here about a device produced by Russian military technology. Top of the world technology.

Got to laugh at a munitions / mine detector where the operator has to actually walk over the target must have been by the same design engineers that gave us the T series tanks with rotary magazine autoloader in the crew compartment.

The quoted targets are relatively massive lumps of steel ... a good PI with a single large coil would easily detect them. A two box PI could provide a Ferrous / non Ferrous indication ( for largish targets ).


moodz.

[ivconic]

The story I heard, etc. is not serious!
TM808 tried it, it's stupid for me personally,the so-called Bulgarian detector "Kantar" two box i also tried even bigger crap than tm 808! As for the mentioned Russian detector or Ebinger 150 I have no idea about EBINGER, and according to some sources, the Russian one comes from an older model that is based on the principle of pi technology so it was produced under the name Anker pulse! And Eclipse can tell you more about that ,although I think Eclipse mentioned somewhere that that Anker is nothing special either.

I know about such stories, colleagues from the Russian forum told me.
I have to correct you; no, it's not an Anker-based detector.
It is a purely military project developed over decades by military engineers.
And of course, as is usually the case; newer models are always based on the experiences and principles of older previous models.
Much later, hobbyists tried to make such a detector based on Anker.
Otherwise, a larger number of detectors that we have made so far and that we know; can easily be modified to work in the 2box variant.
Anker is suitable because of the very strong TX and high voltage in the TX signal.
Proof of that is the video you posted, Golden Mask 4 modified to work as a 2box.
I assume that the TX "booster" was added in that Golden Mask. I have seen some GM models with the added "booster" before.
It all makes sense.
But I'm not interested in converting the existing model into a 2 box variant.
As you said yourself; most of the famous 2 boxes didn't turn out to be very good on the fields.
I am also quite disappointed with the TM808 as well as the Fisher Gemini III.
This new Russian military device is something completely different.
It relies on previous experience with older models.
But something new was done there, something revolutionary good.
Because the performances have never been seen before.

[ivconic]

Got to laugh at a munitions / mine detector where the operator has to actually walk over the target must have been by the same design engineers that gave us the T series tanks with rotary magazine autoloader in the crew compartment.

The quoted targets are relatively massive lumps of steel ... a good PI with a single large coil would easily detect them. A two box PI could provide a Ferrous / non Ferrous indication ( for largish targets ).


moodz.

...
Depth of detection of an artillery shell of 100 mm caliber 1.8 m (it is a 1.8 meters depth of detection, not size of the object)
Depth of detection of an artillery shell of caliber 152 mm 2.2 m (it is a 2.2 meters depth of detection, not size of the object)
...

Either you really don't know anything about it or you pretend not to.
But the shells are not made of steel but of some alloy of brass and copper.
Absolutely "colored" metals.
Without 1/2 gram of steel.
I don't know of any PI detector that will detect such a metal/alloy at those depths.
And I have a Pulse Star II and a few other strong PI detectors and I'm constantly doing various tests.
Another important thing, that detector has a discrimination that works perfectly.
That is precisely the point of its purpose. To separate metals.
So you're a bit hasty in making fun of something you don't know or understand well.
...
The purpose of that detector is to search for very deep explosive objects that for one reason or another remained in the ground.
The purpose of that detector is not to look for surface anti-personnel mines.
For that purpose, there is a much more advanced detector from the same factory, which is held in one hand,
resembles a small directional microphone and successfully locates surface mines at distances up to 10 meters from the place where the mine is.
It's just a technology that you can't even dream of.

[Orbit]

The aforementioned detector has nothing to do with golden mask 4 at all! Only the golden mask box was used for the prototype! Otherwise, the pulse detector in question is at a low frequency,there is no iron discrimination on this prototype,but discrimination can be upgraded.This prototype evolved into the HF100 ALSO WITHOUT DISCRIMINATION.I know the project 100 percent and I think the evolution in hf is 100,went a good prototype to a bad sales model. The prototype runs perfectly quietly and has good depth for a two box ,the tonal part can also be upgraded as desired.

[Orbit]

https://youtu.be/Yf_cYiDw-sg?si=53qDoQBcr5RAk_gK. HF1000

[moodz]

...
Depth of detection of an artillery shell of 100 mm caliber 1.8 m (it is a 1.8 meters depth of detection, not size of the object)
Depth of detection of an artillery shell of caliber 152 mm 2.2 m (it is a 2.2 meters depth of detection, not size of the object)
...

Either you really don't know anything about it or you pretend not to.
But the shells are not made of steel but of some alloy of brass and copper.
Absolutely "colored" metals.
Without 1/2 gram of steel.
I don't know of any PI detector that will detect such a metal/alloy at those depths.
And I have a Pulse Star II and a few other strong PI detectors and I'm constantly doing various tests.
Another important thing, that detector has a discrimination that works perfectly.
That is precisely the point of its purpose. To separate metals.
So you're a bit hasty in making fun of something you don't know or understand well.
...
The purpose of that detector is to search for very deep explosive objects that for one reason or another remained in the ground.
The purpose of that detector is not to look for surface anti-personnel mines.
For that purpose, there is a much more advanced detector from the same factory, which is held in one hand,
resembles a small directional microphone and successfully locates surface mines at distances up to 10 meters from the place where the mine is.
It's just a technology that you can't even dream of.

... I am sure there would be many happy soldiers if artillery shells only contained half a gram of steel.



Description

The Russian 152mm OF540 (ОФ540), a High-Explosive Fragmentation (HE-Frag), spin-stabilised projectile. The OF540 projectile (actual calibre 152.4mm) is the successor to the earlier OF530 projectile. The OF540B projectile is of two-piece construction and is part of a separate-loading round of ammunition that consists of a cartridge case, fragmentation HE projectile and PD fuze. The round is used against personnel, weapons and fortifications. The projectile consists of the adapter and body. The adapter has a threaded fuze well at the forward end and is externally threaded to meet with the body. It has two spanner holes and a setscrew hole and contains the forward end of the explosive charge. The body has an ogival forward end that has four setscrews, two bourrelets, a copper rotating band that is press-fitted into the knurled groove in the body and a boattail base. Additional images and technical information are available to CAT-UXO members.

The 152 mm howitzer shell weighs 96 pounds of which %14 percent by weight is High Explosive. That is mostly steel with a copper driving band.


History / Summary
The OF-540 fragmentation high explosive projectile is used in the 152 millimeter D 20 Gun Howitzer. This artillery piece is employed by Russia, Iraq and Afghanistan as a heavy field howitzer and has been encountered by coalition forces serving in Iraq and Afghanistan.

The Casing is made of brass .... however that is not what you look for in the ground typically.

[ivconic]

However, any slow motion and motion detector can easily be transformed into a 2box type of detector.
There have been ideas on the forum in the past. I vaguely remember something.
I'm not sure that such detectors can be called "PI" just because the TX works on a similar principle.
In the specific case when we talk about that Golden Mask; I don't have any knowledge because I don't follow Golden Mask from model 4 onwards.
Because many years ago I myself made some attempts to make a 2box variant out of an ordinary detector. None of it was good enough.
Carl suggested a strong TX in a previous post. And there is an essential difference between the modification of the ordinary VLF I/B in 2box and such attempts as that Golden Mask.
Of course, the TX must be very robust in order to achieve greater depths. PI TX is always preferred for such performances.
But let's also remember Anker. Anker 50... a very old project. I remember making it. TX was really strong.
If I remember correctly, I measured about 200Vpp on the TX on the oscilloscope.
It was impossible to make a well-balanced coils under such conditions, so I eventually gave up.
That Anker was hypersensitive and kept reacting and giving false signals.
At that time it didn't occur to me to try to make a 2box out of it.

[Orbit]

I'm glad you know everything, I only write when I know one hundred percent what I'm talking about.And I say this again, it has absolutely nothing to do with vlf detectors!

[ivconic]

... I am sure there would be many happy soldiers if artillery shells only contained half a gram of steel.



Description

The Russian 152mm OF540 (ОФ540), a High-Explosive Fragmentation (HE-Frag), spin-stabilised projectile. The OF540 projectile (actual calibre 152.4mm) is the successor to the earlier OF530 projectile. The OF540B projectile is of two-piece construction and is part of a separate-loading round of ammunition that consists of a cartridge case, fragmentation HE projectile and PD fuze. The round is used against personnel, weapons and fortifications. The projectile consists of the adapter and body. The adapter has a threaded fuze well at the forward end and is externally threaded to meet with the body. It has two spanner holes and a setscrew hole and contains the forward end of the explosive charge. The body has an ogival forward end that has four setscrews, two bourrelets, a copper rotating band that is press-fitted into the knurled groove in the body and a boattail base. Additional images and technical information are available to CAT-UXO members.

The 152 mm howitzer shell weighs 96 pounds of which %14 percent by weight is High Explosive. That is mostly steel with a copper driving band.


History / Summary
The OF-540 fragmentation high explosive projectile is used in the 152 millimeter D 20 Gun Howitzer. This artillery piece is employed by Russia, Iraq and Afghanistan as a heavy field howitzer and has been encountered by coalition forces serving in Iraq and Afghanistan.

The Casing is made of brass .... however that is not what you look for in the ground typically.

It seems my English is not good enough.
I apologize for that.
But I will repeat the statements from the advertisement for that detector:
...
Depth of detection of an artillery shell of 100 mm caliber 1.8 m (it is a 1.8 meters depth of detection, not size of the object)
Depth of detection of an artillery shell of caliber 152 mm 2.2 m (it is a 2.2 meters depth of detection, not size of the object)
...

"Shell"... it is a SHELL they are talking about when showing depth results. The SHELLS is what was the target at tests performed in such tests.
So the SHELL it is.
How can I spell it more clearly?
It is the shiny brass/copper lower part of the mine, containing usually some explosive material.
So they took such shell with 100mm diammeter and performed a bed testing on it.
Also did the same with 152mm diammeter shell too.
That's the only thing I wanted to point out.
Name me at least one other existing detector that can achieve at least similar performances. (rhetorical)

[ivconic]

I'm glad you know everything, I only write when I know one hundred percent what I'm talking about.And I say this again, it has absolutely nothing to do with vlf detectors!

Today is not my day. No one understands what I want to say.
Orbit I don't know everything.
Nor do I deny what you wrote.
You didn't understand what I wrote.