GPZ 7000 Successor, March 9th boys…. Apply for those second mortgages…

[Carl-NC]

Even China isn't that fast. The photos shown are stock ML Photos. What I've seen them do in the past is to advertise a detector that they actually haven't copied yet, probably looking for a high-volume buyer (most likely from Dubai) that would justify the counterfeiting costs. I've sent them an RFQ to see if I can buy one, I'll bet not.

 

[Jennifer-007]

Episode 3 is out, GPZ 8000 Proseidon Diggers depth test?

In Part 3 of our GPZ8000 Gold Depth Supertest series, we’re finally testing what you’ve all been asking for… SMALL GOLD!

 

[geowizard]

Two issues. The first precipitates the second...

I have to keep politics out of the discussion. But, I have a long memory and I remember a world leader from a part of the world known for egg rolls coming to our Country at the invitation of a former movie star known for a chimpanzee and "Bedtime for "B***o". The foreign leader was spiriting a cowboy hat.

The second issue is history.

- Geowizard

 

[Jennifer-007]

Two issues. The first precipitates the second...

I have to keep politics out of the discussion. But, I have a long memory and I remember a world leader from a part of the world known for egg rolls coming to our Country at the invitation of a former movie star known for a chimpanzee and "Bedtime for "G***o". The foreign leader was spiriting a cowboy hat.

The second issue is history.

- Geowizard

WTH are you talking about? 🧐

 

[geowizard]

WTH are you talking about? 🧐

Jen,
I get that question all the time!

Aussie manufacturing (like ours) has been and still is going through a process of woke hiring practices and government over-reach that is driving them down the same drain Whites went down. Customer demand (the market) has reached an endpoint where regulation and the laws of physics make the product an impossibility. Add to that, supply chain problems in microelectronics that all originate from off-shore sources, manufacturing is finished.

The few aging designers that remain are demented and gen X, Y, and Z think it's funny. It ain't funny!

New designers have slept through $25 online PhD programs. Higher education has been driven to "cheaper and faster" driving students through paper mills and out the door.

With reference to Bonzo:

"Bonzo" is the name of the chimpanzee character (played by a chimp named Peggy) who co-starred with Ronald Reagan in the 1951 comedy film Bedtime for Bonzo. The film revolves around a professor trying to teach a chimp morality to prove environmental influence over heredity. Peggy the chimp reportedly nearly choked Reagan during filming.

Globalization in the interest of our fight against inflation and the resulting trade deficit has driven global economies to Net zero, Net zero deserves a separate thread.

- Geowizard

 

[Carl-NC]

Aussie manufacturing (like ours) has been and still is going through a process of woke hiring practices and government over-reach that is driving them down the same drain Whites went down. Customer demand (the market) has reached an endpoint where regulation and the laws of physics make the product an impossibility. Add to that, supply chain problems in microelectronics that all originate from off-shore sources, manufacturing is finished.

None of that had anything to do with White's demise. I was there, I saw it first-hand. It failed because of bad decisions made by management. Same is true with Compass, Tesoro, and (the original) Teknetics.

 

[geowizard]

How could Minelab miss the Target?

1. You need to define the target. The definition is "Deep", "Small gold" and "Conductive soils".

2. Did you "hit" or "miss" the Target?

A case in point:

I once had the privilege of attending a one week company sponsored seminar on the subject of "Six Sigma". It's fairly straight forward. At a company, we can call Business, Regional and General Aviation, they manufactured power supplies for an biz jet manufacturer. One of the specifications was on a five volt power supply. The Target was defined as 5 volts. The question was, "What is the "variation" in voltages of one thousand, five volt power supplies manufactured there?"

I had one thousand test reports of five volt power supplies taken as they rolled off of the assembly line. I added up the voltages and divided by 1000. The average was 5.00 volts. Done? No.

The question is: "What is the variation?"

Variation is also called deviation. The voltages could deviate from 0 to 10 volts and average out to 5 volts. Not good!

We can find out why Minelab "hit" or "missed" the target. Stick around and find out how!

- Geowizard

 

[geowizard]

Not "could", but, Did minelab "hit" or "miss" the Target??

Did the Poseidon Diggers miss the Target?

Definition of the Target? Is the Target is a moving Target?
Definition of "Deep": Your definition? My Definition? Minelab's definition? Who's definition?
Definition of "Conductive soil"? Almost every soil is conductive! Magnetic soil? Infinite possibilities.
Definition of ZVT? With ZVT, does magnetic soil matter? What is ZVT? How does ZVT affect sensitivity?
Definition of magnetic soil? What is diamagnetism and paramagnetism?

Who knows?


- Geowizard

 

[geowizard]

Adding to our knowledge base;

From the preceding, there is more we don't know than what we do know! Marketing hype isn't information we can add to our knowledge base. Testing done by others may or may not be done in a manner that has any basis in fact. Observations made by others detecting nuggets "in the field" have too many unknown variables.

How do I "know"?

In 2012, I gained access to data from an Electromagnetic Survey done in the Iditarod mining district in Alaska. I interpreted magnetic data from a calibrated cesium magnetometer with a fixed base reference magnetometer to compensate for diurnal variation that measures magnetic mineralization and structure. I interpreted calibrated electromagnetic data in the form of coaxial and coplanar I/Q responses in parts per million on five different frequencies and two different coil configurations covering over 3000 miles with a foot print 60 feet wide in the Iditarod. The data was compiled in a database and measured conductivity in the form of resistivity every 12 feet, sampling at 10 times per second travelling 90 miles per hour over the course of more than 3000 miles. Using the same discrimination method used by FDEM metal detectors, I learned how to discriminate between copper silver gold, iron and everything in-between. Depending on the frequency and other variables, the detector could measure 400 feet into the ground. I discovered gold at existing gold mines and I discovered lode gold near where placer operations were mining. Lode gold discoveries correlated to their placer deposits based on placer mining ops within the most probable erosion models! Every winter over 12 years, I interpreted data on the 16 remaining mining districts in Alaska.

Metal Detectors are sensitive geophysical instruments. They deserve respect and understanding. To be a reliable tool, the GPZ 8000 requires more than a scant, piecemeal, random test.

Stick around, there's more!

- Geowizard

 

[geowizard]

We gain knowledge from experience and experiments:

Experience can come from personal experience or the experience of others. In both cases, the result is different for everyone. Experimentation can be pseudo-random as with the Poseidon Diggers. Note: We should give credit to every attempt to quantify the detection capabilities of a new detector like the GPZ 8000.

The testing should be complete. To be complete, the testing (experiments) should be done on a variety (not two) targets at numerous, (not two) depths and at numerous (not one) conductive test sites with known conductivity. The process is called a Design of Experiments (DOE).

- Geowizard

 

[geowizard]

Here's an example I just found:

My notes from use and personal testing of Rutus Alter 71 detector

Overall weight and feel of unit is IMO nice,,not heavy feeling. Both coils. Btw. Concentric measures 8.125" outside to outside diameter. Supposed 11" dd measures 11". I even with little time I have run this unit,,this unit designed to be a Deus killer for the $$$. Question is, is it?? Using...

www.treasurenet.com

- Geowizard

 

[geowizard]

Coils need the same DOE as the Detector:

It's a better DOE to include the same tests with different coils. Minelab undoubtedly did this testing on the GPZ 8000. The data shouldn't be proprietary. If it's GOOD, then show me! Don't just talk the talk! Walking the walk is a matter of demonstrating the capabilities and producing the data. Without that, its all marketing hype.

- Geowizard

 

[geowizard]

Experimenting with the GPZ 8000:

J.D McNeill of Geonics fame wrote technical notes that provide a foundation for those of us curious to know more about the fine art and science of metal detecting with an emphasis on the GPZ 8000.

Geonics:

Geonics Limited - Electromagnetic Geophysical Instrumentation

Geonics Limited is a world leader in the design and manufacture of electromagnetic geophysical instrumentation for geological, environmental, geotechnical, and UXO applications.

www.geonics.com

Geonics Limited Publications

Geonics publications related to applications of electromagnetic instruments in geophysical studies (conductivity meters, time domain, metal detectors).

www.geonics.com

Geonics TN-5

https://www.geonics.com/pdfs/technicalnotes/tn5.pdf

- Geowizard

 

[Jennifer-007]

Experimenting with the GPZ 8000:

J.D McNeil of Geonics fame wrote technical notes that provide a foundation for those of us curious to know more about the fine art and science of metal detecting with an emphasis on the GPZ 8000.

Geonics:

Geonics Limited - Electromagnetic Geophysical Instrumentation

Geonics Limited is a world leader in the design and manufacture of electromagnetic geophysical instrumentation for geological, environmental, geotechnical, and UXO applications.

www.geonics.com

Geonics Limited Publications

Geonics publications related to applications of electromagnetic instruments in geophysical studies (conductivity meters, time domain, metal detectors).

www.geonics.com

Geonics TN-5

https://www.geonics.com/pdfs/technicalnotes/tn5.pdf

- Geowizard

Great content Wizard, very interesting, thanks for taking the time to add it. 👍

Jen

 

[geowizard]

Reviews;

Product reviews are super important! Here's why...

Readers can be and often are guided by opinions of their peers. Let us say hypothetically, 90 percent of NEW users give the GPZ 8000 a thumbs down! We naturally "assume" there's a problem or problems and that reflex action results in a "don't buy" decision.

If there is a problem, ask: What's the problem? Who owns the problem? Let's drill deeper!

Operation of the machine involves the "operator (a noun, no pronouns here)", the "machine" and the "operator-machine interface".

The Operator:

Is the operator intellectually gifted, challenged, or some where in-between? We must again, "assume" a degree of familiarity but operators may be experts or green as grass newbees. The operator must be diligent enough to download the user manual, read it thoroughly and have enough capacity to move into that new realm of a new machine, new feel, new look, new buttons, and an experience different from their prior experience. If anything has changed and it probably has, the operator has a problem. If it's deeper, it's heavier and bigger. Without writing a book, we can agree, the operator could be part of the problem.

The Machine:

We read and listen to marketing hype and try to get specifications on the machine. Argh... The manufacturer, in this case, Minelab, has an obligation to spill the beans and provide a specification on more than weight of the machine, it's color and alphabet soup sales bologna! No spec's, no deal IMHO. Consumers have rights. We should at least, have a specification on "deep" and a measured spec on "difficult soil". How small is a "small nugget"? Our expectations should be based on a specification, not nebulous BS. People with money usually have money because they are successful. Success is most often the result of having a good BS filter. Generalities, yes, but this is a major investment of after-tax income for most. The machine should have an anticipated "increased" and measurable level of performance over all other predecessors and brands called a cost/performance ratio aka "bang for the buck"!

Coils? The GPZ-8000 doesn't have a 25 inch double-d option. It sports an 18" torroid. Torroids have been known for most of the past century to be more efficient. It's an air-core torroid without getting a Dremel tool out and doing a potentially very expensive deep-dive. Are air-core torroids more powerful on the transmit side? Are they more sensitive on the receiver side? The coil(s) is/are where the so called "rubber meets the road"! The coils are co-planar air-core torroids. The torroids are not wound on ferrite (iron) cores. Curious? Let's get out a Dremel tool and find out! Better yet, Minelab should disclose what's up! Off shore designers and probably as many on-shore designers have Dremel tools for one purpose. Satisfaction of curiousities!

The Operator - Machine Interface:

Operators (mostly) all have six things in common. Their five senses and one brain! Stick around for more on the Operator-Machine interface.

- Geowizard

 

[Carl-NC]

The coils are co-planar air-core torroids.

Are you sure they're toroidal? Are you sure they're coplanar?

 

[DizzyDigger]

Operators (mostly) all have six things in common. Their five senses and one brain! Stick around for more on the Operator-Machine interface.

So let's have Jennifer test one so we know we're getting the straight poop.

Problem solved..

 

[geowizard]

So let's have Jennifer test one so we know we're getting the straight poop.

Problem solved..

Mike,

I agree! If you buy it, Jen tests it and I keep the Gold, we can do this!

- Geowizard

 

[geowizard]

I have a test site!

The Test Site: Permitted mining claims with inferred Gold. The Gold is inferred by State of Alaska em survey data that defines a deposit 2000 feet long using a 10 ohm-meter resistivity cutoff. The core of the deposit is the highest possible grade, having a resistivity of less than 0.5 ohm-meters. The data includes precision GPS coordinates of where shallow Gold Nuggets exist. I am coordinating a mission to detect and recover nuggets this coming season. This deposit is the most probable location of the relatives of the Alaska Centennial Nugget as seen previously in this thread. Inferred is the lowest probability. It's the same as the signal you get from any em metal detector!

- Geowizard

 

[Jennifer-007]

Mike,

I agree! If you buy it, Jen tests it and I keep the Gold, we can do this!

- Geowizard

Appreciate it, but I’ll be too busy reading your encyclopedia size posts to test anything. lol 😉