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  1. For background, relative novice here -- I've messed around lightly with an Ace 400 for a few years, and escalated the hobby with the Equinox 800 and Nokta Legend a few months ago. Tons of fun so far, and I'm ramping up my game finding coins, relics, and [knock on wood] tiny gold. I've also discovered I like comparing detectors and exploring their relative performance/outcomes and features. Anyways, question for the detecting veterans in this fine forum: What have been revolutionary detectors for you, and why? What changed the game after it hit the market? Best/worst quirks? What kind of history do you have detecting, etc.?
  2. When user requests make operation a nightmare.
  3. Maybe a stupid question but I do need an answer as I have been mostly nugget hunting and been away form coin hunting for many years. I may have an opportunity to hunt a part of Europe with great potential of finding some nice roman coins. If one was going to hunt coins, and jewelry would you bring a vlf detector or a pulse induction like lets say a sdc 2300 for more depth. I know all about vlf disc and benefits of p.i. in mineralized soils and all the stuff. What I an interested in is depth and not so much avoiding iron junk, I was thinking sdc because its compact and water proof. Does the sdc 2300 go deeper then lets say a Minelab 800 on a small coin ?
  4. While browsing some of my archived files I found some service information for vintage Whites metal detectors, geiger counters and other instruments. Unfortunately I could not fine the source information so I can not give due credit to the source but these documents were originally produced by Whites Electronics. Because Whites is now closed I could not contact them for permission to publish. Steve H: if it is inappropriate for this information to be posted, please feel free to remove it. I thought this information might be useful for those who collect vintage Whites equipment and would like to have some service information. I suspect that, within limits, the information can be projected forward a few years too. Enjoy. 🙂 1946-1971 25 years of metal detector service.pdf add on 25 years.pdf
  5. Hello everyone, Of all the metal mods you've ever used, which was the best metal detector?
  6. I am a late comer to the hobby, and sound quality has become a primary interest. There are areas where headphones are not feasible and in those conditions we are relegated to listening to tones that are moving away from us and subjected to reflections before reaching the ear. That is the farthest thing from sound quality that I can think of. Furthermore the volume has to be elevated because the speaker is not facing us. Where metal detecting is tonal and in many cases tone is or should be a higher priority than a VDI I am at a loss in 2022 to understand this design flaw, or lack of it being an option. Weight? No. Space? No. Electronic Capability? No. What gives? Thanks.
  7. This subject comes up so often it is time to get it into its own thread so I can just link to it in the future. It is best to think of metal detectors made for prospecting as "nugget detectors" as that is the truth of the matter. Nuggets have some size to them. Metal detectors are electromagnetic devices, and as such can detect items that are conductive and non-magnetic, like gold, or non-conductive but magnetic, like magnetite. Or both, like metallic iron. When dealing with gold you are dealing only with conductivity. The more conductive the mass, the easier it is to detect. In general what this means is bigger is better. Any detector has a limit to how small an item it can detect. Here is the kicker. Multiple undetectable targets do not add up to create a detectable target. I do not know how many times I've seen or been told of people throwing a vial of small gold on the ground and running a detector over it and declaring the detector will not find gold because it does not pick up the vial of gold. Or people thinking the detector has a problem. Let us say that on a scale of 0 - 10 zero represents an undetectable piece of gold, and 10 one that really beeps. 0 + 0 + 0 + 0 + 0 still equals zero. So lots of tiny gold is just as undetectable as a single piece of tiny gold. You need a single conductive mass. Fine gold usually has a coating, and putting a bunch of fine gold in a vial still results in little or no signal. If the gold is super clean and packed tightly you will get a weak signal. Melt it all together, and now it goes beep. Another way to look at it is take some fine gold and pour it in a pile. Get a multimeter and test your little pile of gold for conductivity. It is hard to get much current if any through a loose pile of gold. So bottom line is you might have 5 ounces of fine gold right under your feet, and you will walk right over it with your metal detector. Rich gold ore where the gold is finely dispersed in the rock will be hard to detect or undetectable. Wiry or spongy masses of gold are hard to detect. Jewelry hunters run into this when trying to detect lost necklaces. A fine chain is very hard to detect as each link is undetectable and the connection between the links is poor enough the signals does not add up to much. Often all you can detect is the clasp. Rings even display this issue if the weld breaks. A complete ring really gives a great signal. Break the ring, it will be very hard to detect. Now once an item is detectable, it does add up. 10 + 10 = 20 so two large nuggets in the same spot are easier to detect than each by itself. If each link in the gold chain can be detected, then it will add up into a more detectable target. A fun trick with target id detectors is to tape 5 nickels together and run them under the coil. They will read as 25 cents! It's hard enough to detect loose items in air tests. It becomes impossible in saltwater.
  8. I see some folks lamenting the lack of concrete ML "official" video and written documentation on M-core. Many of these folks also state they are already on the various dealer waiting lists (which implies they have already made their "buy" decisions regardless of not having that additional information in hand). I too would like to have that information, but I have also not jumped on the dealer waiting list bandwagon and don't intend to actually make the buy decision until I have that concrete information and also hands-on feedback from users I trust. I have no idea what the waiting lists look like for M-core. But presuming they are anything like Equinox (despite M-core being primarily a refined Equinox with some bells and whistles and, hopefully, apparently addressing the design/manufacturing faults of the original Nox (with the requisite price increase) then ML would likely be less motivated to get that additional info out there any sooner than necessary because folks have apparently already made their buy decision, regardless. Think timing for the user guide and instructional videos being closer to, or just in time for, detector release later this year rather than the recent September marketing "launch" (which some are confusing with "release"). This approach, though not uncommon for ML, is consistent with what many view as a pattern of behavior that places the user as a secondary consideration to profit. Why do more than you have to, to make that sale. Yes, not uncommon for businesses, especially successful businesses. But this is in stark contrast to the direct competition like Nokta, Garrett, and even XP who are listening and mostly reacting to customer feedback, in a timely manner. Imagine having to cajole Nokta, et al into admitting, much less addressing, fixing coil ears/coil issues, leaking control pods, speaker problems (GPX 6000), wobbly shafts, enabling cross platform compatibility of accessory coils and audio accessories, releasing manuals well before product release, etc. In some cases there are direct correlations for the competition quickly addressing and fixing these things (even outside of warranty periods) to keep its loyal customers, loyal. And while its true all these players are in business to make profit, ML seems to be too big to worry about these "little" things that users notice and, as many successful businesses do, keeps them under the radar, blame shifts and then quietly addresses them as "improvements" rather than the "fixes" to defects in previous products. ML's ability to outpace the competition in the raw performance and sophistication of its product line (and M-core will surely keep up that tradition and will be a legitimate detecting power tool) is both a blessing and a curse to the customer base, in this respect. The competition has to keep up. It's not enough to keep the customer #1, the product needs to at least be competitive as well. The three competitors mentioned earlier have done a lot in the past year to keep pace. They need to keep pressing to force ML to pay attention to these little things too. Yeah, sitting out the early adopter phase waiting lists on this one. Maybe I'll get lucky and be able to snag a like-new unit off the market after release that was dumped by an inexperienced/delusional purchaser who mistakenly bought the YouTube influencer hype and polished marketing and thought was going to be Harry Potter's magic deep keeper magnet and pull tab rejector. These are the impulsive/impatient folks who mistakenly think that detectors make treasure vs. research, site selection, experience, and putting the hundreds of hours in to learn the ins and outs of your new detecting toy. I ought to know, because that was me when I first started out. A little more jaded and experienced now. Been burned (hello MX Sport) and burned again. But even though M-core is not overly compelling compared to what I have right now (that wasn't the case when the game changer Equinox arrived on the scene), I can also still get excited about a new product that even provides marginal improvements and upgrades to what I have now. I'm certainly eyeing M-core. Unless there is some fatal flaw we don't know about, M-core will likely eventually make it to my arsenal, but it will have prove itself BEFORE I wait in line and hand over my cash (this time). But I am hoping these other manufacturers prove something to ML in the near future. Having multiple, competitive manufacturers in the hobby/business is just a good thing for all of us who are passionate about the detecting.
  9. I was in a Treasure Hunting Club meeting one night and someone asked “What’s the Purpose or Advantages of (Simultaneous) Multi-Frequency?”. I went on to explain how different metal objects react to a specific frequency better than others. Some (lower) go deeper and handle mineralized ground better, while others (higher) like small lower conductive targets such as gold. He owned a Nokta Makro Anfibio MF, but can only choose one at a time. So far, my experience hasn’t always been good. In areas with a high concentration of Iron of various sizes and stages of degradation, which can ring anywhere on the VDI Scale, a single frequency Metal Detector excels. I found the same thing in a trashy park, recently. There were too many signals with so much noise, I had to run in a single frequency to quiet everything down. Even then, I had to wiggle the coil and PULL a target out from the various tones around it. Now, I’m not talking about the tried and true, Minelab BBS (17) and FBS (27) technologies. They don’t seem to be plagued by these problems possibly due to the fact that the frequencies are more plentiful and closer together. Neither have I had a problem, with Dual Frequency machines like the DFX and CZs. Most likely because they have fewer frequencies that are farther apart. These are just my educated guesses and not based on any technical data as I’m not “That Guy”. I’m just a Dealer and end user. The ones I’m in reference to are the Equinox, Legend, and Apex where the majority of their frequencies vary by 5kHz. Walt
  10. Hi, I am looking for a way to get a digitised data feed of a metal detector so I can write my own metal detecting system. Any experience with this? A recording of numbers that I can feed in to a programming tool on my laptop is where I would like to be. I assume developers of commercial systems have tools for such. can I buy or make simple powerful diy detector with some coils, amplifiers and a digitiser? There are some diy guides that mention multimeters. Perhaps I could find a usb connected multimeter or a Bluetooth multimeter that connects to a streaming api on the laptop? would these diy multimeters be comparable to commercial systems? Is what makes commercial systems good their special software sauce or are there hardware differences that can’t be acquired by normal people?
  11. Welcome, I was wondering if anyone if using any form of artificial intelligence in their gold detectors? I'm an artificial intelligence (AI) programmer. Last night I was watching Aduk gold on Netflix and suddenly wondered if anyone was using AI? A quick google didn't return much. I'm not sure how familiar everyone is with AI, but essentially since around 2015 it's blowing away peoples expectations year upon year. Simply put, traditional computer programs require humans to code in rules that then lead to a result. AI does that backward, it takes the results and creates its own rules to get to that. To do this with gold would require the creation of training data to feed into the AI. I don't know anything about gold detecting but I imagine you'd bury some pieces of gold and go over it with the detector, then save the waveforms (or equivalent) onto a computer. These become the gold samples. Then also bury things that most often give the most false positives compared to gold, and save those waveforms. The exciting thing compared to a few years ago is that not a huge amount of training data is needed. It's possible to take huge AIs trained by Google and then teach them the new gold samples far quicker with a lot higher accuracy. The process of training is basically the AI guessing 'gold vs not gold', and over millions of iterations it starts to learn. It then can be saved and used in the field to give a percentage estimation of how likely it thinks something is gold. I don't know anything about gold detecting but this is how I would see it used practically. Am I right in thinking that a fair amount of time is spent digging up false leads? If it's not and most of the time is spent surveying the area then the AI isn't very useful. But if there is a lot of time digging up false leads, then if the AI could save someone digging up 90% of the false leads would this create a lot of value? I'm really interested in any thoughts that any of you have regarding this. Cheers Ben
  12. Not really, at least not yet, but the look sure is getting similar. https://www.amazon.com/F50-MTK6735-4000mAh-Android-Smartphone/dp/B081DTQHMP
  13. Is this the future of detecting? I think so. Take a set of data points and process them (just as we do with our brains) and voila! It doesn't have to be magic when you have good science to make it repeatable. Watch out missed nuggets! Currently, a type of software based on a machine-learning algorithm called deep learning has been shown to be effective at removing the blurriness or noise in images. These algorithms can be visualized as consisting of many interconnected layers or processing steps that take in a low-resolution input image and generate a high-resolution output image. https://scienceblog.com/520757/smart-algorithm-cleans-up-images-by-searching-for-clues-buried-in-noise/?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+scienceblogrssfeed+(ScienceBlog.com)
  14. Steve's post on the merging of metal detectors and smart phones inspired this extremely witty response.. I can see why someone could easily mistake their smart phone for a control box.. 😁 I guess for people glued to their phones all day, nothing much will change when a 'control box app' on our phones becomes a reality.. Can't say I'm looking forward to that day..
  15. Hi I see this software in some one's laptop and I don't know what was that? Can you please tell me where can I purchase it?
  16. I can't but help notice how poor quality metal detectors have become, for such expensive electronic devices the quality is frankly pitiful. I like everybody buy a lot of stuff, from TV's to Vehicles and everything in between and the products I have the most trouble with are metal detectors. Most things I buy last fine, I never really cared about warranty and rarely kept receipts until I started detecting, I'd never needed to use it. Almost everything other than detecting gear I've bought in the last 20 years has lasted well beyond it's warranty period trouble free and most things I've bought in that time I've still got now are working fine or I got rid of them while still in a working state because they were simply replaced with newer stuff. I have a LCD TV that's 15 years old and never had a glitch, it's now just used by my daughter as I couldn't bring myself to throw it out, I had a very large rear projection TV from about 10 years before that and it still works fine but I gave it away and the people are still using it, . I have an original Atari game console from 1983 that I had as a kid that still works, and my original Sega Master System from 1986 still works like it was new yet a lot of the detectors I buy screw up in the first year or two and it's not just me, I see it happening to lots of people. I still have my first ever metal detector from when I was about 8 years of age and the thing still works! I've only been detecting a few years so wasn't overly aware of the history of detectors and their failures but looking around seeing people using old whites metal box machines and people still using Gold Bug 2's from the 90's gave me the impression detectors were built to last. I thought the poor reliability was just a Minelab problem with recent machines like the known build quality issues with the Nox and now the GPX 6000 but if I look back the CTX had it's share of issues too and I would guess other models. The GPX 6000 is dismal, worst quality detector I've seen in my time with a crazy failure rate although some are in denial of this until theirs joins the long line of failures at some point. Nokta come out fighting saying their detectors are far superior build quality than the Nox indicating their Legend would be built tough and reliable and it's turned out anything but, with countless people complaining of problems with some examples being the speaker failing which seems to happen all too often, faulty PCB's, updating issues and an abnormal number of faulty coils, to me from what I've seen their failures are just as bad as any Nox ones, if not more so as they've happened so close to the release date and the problems extending into a range of parts on the detector where as the Nox was mostly leaking which may or may not be a valid warranty as who knows if anyone with a leak used it within it's limits. Yes I know the Nox had other issues like wobbly shafts and I'm certainly not saying the Nox was good build quality, neither of the two are. Fisher came out with the Impulse which was a shambles and had endless faults, although at least it was a beta detector, albeit one people paid for the privilege of testing for them. XP have had their share of problems with the Deus 2. It seems no brand is immune to making rubbish, I haven't had any problems with Garrett personally but their Apex certainly had its issues. I have an original early model Gold Bug 2, my antique and it works a treat, solid as a rock! I have an early Aussie Built GPX 4500 and it purrs along like the day it left the factory, in AUSTRALIA. Whatever happened to detecting companies building good quality products, they used to be able to do it.
  17. Greetings to all! My name is Alexander, I am from Ukraine (Eastern Europe). I represent myself and my friends, we developed a portable type GPR many years ago and gave it the name EasyRad. We have developed a georadar and software for it. We would like to get in touch (get contact) with those people or organizations who need to search for gold in the United States and Alaska. To my regret, on forums of gold prospectors and forums of archaeologists there are no sections "georadars", there are only metal detectors. I would like to convey to the searchers the information that GPR is not expensive and it allows you to explore underground spaces quickly and with great interest 🙂 We produce this GPR equipment, so we can answer all your questions. Our radar has a very affordable price for individual use, unlike other radars. See the web link below for examples. EasyRad GPR is a portable multi-purpose scanning ground penetrating radar of sub-surface probing for the problems of engineering geology, hydrogeology, archeology, ecology, field engineering as well as for search and rescue operations. https://www.easyrad.com.ua/index.php?r=index_en
  18. I had read in Bruce Candy's autobiography that some of the amplifier circuits he developed before coming to Halcro measured interference in the millionths of a part. Does anyone know if these super fast new detectors are approaching that level of efficiency? I'm trying to figure out how they do what they do... ...probably a dumb question...not my first...nor last...😆 cjc
  19. Here is a question for people who have had years of experience with using, selling, or engineering detectors. Has anyone ever heard if strong magnetic fields, say from a rare earth magnet on a pick head, bumping into contact with the control box have any potential for altering a detector’s performance? I didn’t think of this until I was scratching my head trying to figure out why I kept hearing lightning spikes on an otherwise on a crystal clear day. 😅
  20. Winter will be starting to set in soon, and cabin fever will soon be running rampant , time to think about the next dream machine from Minelab. What improvements would you like to see over the Nox 800? Preformance is always a biggie. More depth, more Stable ID at that depth. Wider numerical ID system, 0-100. Better selection of optional size coils. Or, maybe an etrac or explorer features in the nox liteweight style? Adjustable handgrip pod. EMI elimination system. If you request it, maybe they will build it. 😁
  21. Can someone explain how one nail can blind a person from seeing lets say a silver dime in test situation yet I have found coins with nails in the plug or in the hole close to the coin often in the wild. Actually the first silver I ever found with the Equinox was a almost slick SLQ. I got 30-32 signal and there were nails in the plug and hole. The quarter was still in the hole. This was 6"-8" deep. I even found another decent size nail in the hole before I found the quarter. The guy standing over me said it's just a falsing nail when I pulled it out. I said no the numbers were solid quarter, and then sure enough found the quarter. It has messed with my head that I can ever find anything when I see test that apparently blind a detector so easily. That's one reason I don't have much faith in any made up test.
  22. To be clear here I am talking genuine multifrequency. Not selectable frequency misleadingly labeled as multifrequency, so we are now supposed to say “simultaneous multifrequency” or SMF, to differentiate. Sorry, I’m calling BS on all that. Selectable frequency machines are still running in a single frequency. Just because you can pick the frequency is not new. Been around for decades! When I say multifrequency detector I mean multifrequency detector, a detector comparing two or more frequencies to get a desired result. I don’t need to change my thinking. Marketers need to stop calling selectable frequency machines multifrequency. It’s misleading, I’m not playing along any more, and handing out thumbs down to those that continue to do it. Machines are either single frequency or multifrequency. If you want to your your single frequency detector as being able to select frequencies, fine. But quit calling it multifrequency. Even Minelab never stooped that low, and they had single frequency detectors that allowed you to select frequencies, far before most did. So what was the promise? Or more accurately, the hype, of multifrequency? It has been that multifrequency detects all targets, large or small, high conductor or low, all at the same time. As opposed to single frequency, where each frequency is strong in one way, but weak in another. To this day I see this said in marketing, and I constantly see users repeating it as some kind of fact. More BS. As anyone who follows this should know by now, the underlying frequency mix still rules. Minelab calls it “weightings,” where each mix is weighted higher or lower frequency, depending on the desired end result. So we have high frequency weighting for gold prospectors, and low frequency weighting for saltwater, as the most obvious divide. Multifrequency does have an inherent strength over single frequency. Comparing at least two diverse frequencies gives more ground and target information to the system. This, in particular, generally results in better target id capability. There also is a very real ground handling advantage on mineralized saltwater beaches. But you can’t make multifrequency detector that runs in all frequencies at once, that will do the best on everything everywhere. If so we would not have all these different modes, Park, Field, Beach, and Gold. The end result is not much different than a selectable frequency detector. You have high frequency mixes, or medium, or low. Each serves a purpose. I still have to choose frequency modes, and it hardly matters if I am saying high single frequency for nuggets, or high frequency weighted mix for nuggets. If people were not told different, they would not actually know it is any different, except for the extra target id and ground handling capability. So stop with the “multifrequency finds all targets across the entire range” nonsense. There is no multifrequency detector made that runs in one mode, and hits tiny gold nuggets, while also working perfectly well at the beach. That’s what we are being sold, and it’s simply not true. This is from an old post of mine about Equinox, and it’s what we really have: Hottest (more sensitive to small targets, hot ground/rocks, and saltwater) 1. Gold Mode 2. Park Mode 2 and Field Mode 2 3. Park Mode 1 and Field Mode 1 4. Beach Mode 1 5. Beach Mode 2 Least Hot (less sensitive to small targets, hot ground/rocks, and saltwater) Now seriously, just how different is that from a range of selectable single frequency, high to low? What I’d to see is all this incorporated into a simple variable control. Instead of discrete modes and complicated explanations, give me a single control. Setting higher sets for progressively higher frequency mixes, setting lower goes to lower mixes. You simply set the control as high as your ground allows, which is basically they way we pick between the modes above anyway. Simplistically using my little chart above the control would have 5 - 7 levels. I think attaching names to the modes misleads people anyway. There is no reason not to use Gold Mode to Relic hunt, or Beach Mode to hunt silver coins, but people get locked into thinking those mode names mean way more than they do, and I think some peoples detecting suffers as a result. Get rid of the names, and it frees your mind to a more open approach as to which modes work best under and given circumstance.
  23. Yesterday while detecting in mostly dirt, I got at least 5 good repeatable signals and just couldn't find the nuggets. My brother was with me with his GB 2, so I had him go over one of the signals and sure enough it was a small pellet sized nugget. I'm pretty sure now, that I was experiencing the well-known "Halo Effect" and after disturbing the soil, the nugget was just too small for me to pinpoint it. My Garrett Pro-Pointer wouldn't pick it up either. This is good to know and another way to keep getting those nuggets. The 6000 is amazing and despite its "turn on and go" reputation, I'm learning a lot with each outing. Will be interested in seeing any new coils that are coming down the pike.
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