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Calabash made a video eight months ago called “Is It OK For A Forum To Use A Content Creator As A Punching Bag” complaining about this forum. He did not like some negative commentary that was made about him. I became aware and thought he had a good point, so within 48 hours I scrubbed this website of virtually all mentions of him and his videos. Eight months later his video is still up and his followers are still punching away. Turns out I don't like it any more than he did. The commentary makes it clear my efforts to offer a place where people can have a relatively drama free experience and get some good information are not appreciated by a large number of people, 140 and counting. In addition, I had a poor run of posts here where responses made me regret posting in the first place. Those posts are gone now but were the nails in the coffin. If participating online comes with this kind of drama I can live without it. The tone these days is decidedly different than it was when I first hit the forums in 1998 and not for the better. All the drama - over metal detecting! It’s mostly me that has changed however, my focus and priorities. I'm therefore withdrawing from posting any more than is necessary to keep the forum up and running for those who still value having it as a place to hang out. I really was only looking to be an answer guy to help people out, to share some of what I have learned in over 50 years in the industry and as a genuine user. Maybe I was getting my ego stroked at the same time. Probably. The kudos felt nice when they came. Fact is times have changed. When I started there was a real lack of good information and answers about metal detectors. There was a vacuum I filled, a big fish in a tiny bowl. Now, there is a wealth of information and answers available from a myriad of sources. YouTube in particular has supplanted forums as an information source, and what was once an honest sharing by real users has turned into a competitive landscape of influencers vying for eyeballs for profit. I don’t feel like what I do matters that much anymore, more like hanging on to a past that no longer exists, so I think it’s time for me to exit the stage. It's been a pleasure, and I do apologize to those I may have offended or upset over the years. I have made some bad calls moderating and may do so in the future, but I do try to do my best. It is never my intent to be on the wrong side of anyone, Calabash included. I wish him well in his endeavors, now and in the future. This post is not an invitation for people to go after Calabash and any posts mentioning him or discussing this on this website will be deleted, so don't bother. I'm not looking for sympathy or support, just explaining my absence. Again, I will keep the forum running but with minimal direct interaction. Off topic posts may be deleted or contentious threads locked without comment on my part. To those of you who do appreciate the effort and for all your kind comments, posts, and yes, for what you all have taught me in return... thank you. Edit - The Calabash video has now been marked as private so I guess this post got seen.
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This is my latest "Nugget Detector Guide", now published for over twenty years, updated November 2025 with some of the latest model information. Each model has a short description, followed by a very PERSONAL OPINION. Copyright 2002-2025 Steve Herschbach - Please do not reuse or repost without my express permission. This is offered as a simple guide for those wanting a comparison of the various nugget detectors available new with warranty, along with some kind of real opinion about them. That's all it is, folks, so take it or leave it for what it is worth. It's just that listing specs is of little help to people, and so I take my best stab at providing some guidance for those newer to detecting. These are only my opinions based on my experience with various detectors over the years. While I do have a lot of experience, I must throw in the caveat that I have not used all detectors under all conditions. What may be considered a good detector at one location may not be so good at another location due to differences in ground mineralization and the gold itself. Detector performance is site specific and so your mileage may vary. Never forget that when reading comparisons on the internet. Although many detectors sold today can potentially find gold nuggets, I've chosen to only list current models from major manufacturers that are sold and marketed primarily as prospecting detectors or that at least have a specific prospecting mode. I no longer list general purpose VLF detectors running under 18 kHz because they are too common and that being the case they offer nothing special to the potential gold prospector. If you are interested in other general purpose detectors that might make good prospecting machine but are not listed here, look at my more comprehensive reviews list. Many discontinued prospecting detectors are also listed there. Various popular VLF gold nugget prospecting metal detectors Please, if you own one of these detectors, and I call it like I see it, don't take offense. Any nugget detector made will find gold in capable hands, and the owner is far more important than the detector model. I'll put a good operator with almost any detector on this list up against a novice with whatever is deemed "best" and bet on the experienced operator every time. The person using the detector finds the gold. The detector is actually one of the less important factors in nugget detecting success or failure. A quick note to those who know nothing about these machines. These are metal detectors. There is no such thing as a "gold only" detector. These detectors will also find lead, copper, aluminum, and other metals. These units are best used to look for relatively larger pieces of gold at relatively shallow depths. Concentrations of gold dust are not detectable. Some of these units can hit gold that weighs as little as a grain (480 grains per ounce) or less but only at an inch or two. Only the larger nuggets can be found at depths exceeding a foot. Only world class nuggets weighing many ounces can be detected at over two feet. The vast majority of nuggets found are found at inches, not feet. About Long Range Locators (LRLs) WARNING ON COUNTERFEIT DETECTORS - The market for nugget detectors far outsells coin and relic detectors worldwide, with huge sales in third world countries. This has made many of the models below very popular with counterfeiters. Here are some Fisher and Minelab examples. If you shop these models there are two simple rules. First, you are safe if you stick with approved dealers. Second, if the price seems too good to be true, beware! All legitimate dealers have a limit on how low they can advertise, the Minimum Advertised Price (MAP). Review prices at the approved dealer list, and if you find the detector advertised as new at a significantly lower price by somebody not on the list, the odds are very high you are looking at a counterfeit detector. Legitimate dealers are prohibited from advertising at those kind of prices, and a price too good to be true is your number one warning you are about to be ripped off. The detectors are listed in order based on the lowest price normally advertised on the internet as of the date below. Steve's Guide to Gold Nugget Detectors - Updated November 2025 Before I start, a quick note about recent events in the metal detector industry. A few years ago we lost a major manufacturer in the form of Tesoro. That lead to the Tesoro Lobo SuperTRAQ being dropped from this list. 2020 saw one of the true industry stalwarts fall by the wayside. White's Electronics was acquired by Garrett in October of that year. I am therefore dropping the White's nugget detectors from this list as no longer available new with warranty. For now, see my detailed reviews for information on White's models. Bounty Hunter Time Ranger Pro / Fisher F19 ($299, 19 kHz) - This detector is a later, more advanced version of the Fisher Gold Bug Pro (see below), with added features. There is an excellent threshold based all metal mode plus a dual tone discrimination mode. The F19 has both ground grab and manual ground balance, plus adjustable tone break, just like the Gold Bug Pro. Extra features are added to enhance the coin, relic, and jewelry capability, such as notch discrimination with adjustable notch width, volume control, separate ferrous tone volume, and a LCD meter backlight. These extra features may even find use while gold prospecting. The Fisher F19, and the Bounty Hunter Time Ranger Pro, can use any Gold Bug compatible coils plus those made for the Teknetics G2 series, providing for a huge number of possible accessory coils. This detector can be had with several stock coil options, including a 7" x 11" DD coil, or 5" x 10" DD coil. Weight including a single 9V battery is 2.6 lbs. Steve's Opinion - If you can afford it, look at other options below. If you want the lowest price detector worth even looking at for nugget detecting, you can look no farther than here at $399 (or less). First Texas, the manufacturer of Bounty Hunter, Fisher, and Teknetics metal detectors, sells quite a few identical or near identical metal detectors under different brand names and model names. Due to oddities in their marketing scheme, some more powerful models are often available at lower prices than other less capable models. Currently the 19 kHz Gold Bug name carries a premium price, while other identical or more capable models, sold under other names, can often be had for less money. That is currently the case with the 19 kHz Fisher F19 models, and the identical Bounty Hunter Time Ranger Pro model. The bottom line is this. If you can find a BHTRP/Fisher F19 with 5" x 10" elliptical coil for under $500 at a legitimate dealer (see counterfeit note above) it is easily my current recommendation for an extremely capable, entry level, VLF nugget detector with general purpose capabilities. I recommend this detector over the Fisher Gold Bug and Gold Bug Pro models below, not only because of the extra capability, but because it can be had stock with the 5" x 10" DD coil, the best general nugget hunting coil for the FT 19 kHz series. It can only be had as an accessory coil on the Gold Bug models, driving their out of pocket cost even higher. Fisher Gold Bug Pro ($339, 19 kHz) - The same detector as the Time Ranger / F19 above but with a more limited set of controls. This unit normally comes with a 5" round DD coil to enhance the sensitivity to small gold but other standard coil packages are available. Weight including a single 9V battery is 2.5 lbs. Many accessory coils are available for the Gold Bug Pro. Steve's Opinion - The Pro is the final version in this series which saw several early variations including the basic Gold Bug (now discontinued). It is a excellent choice for prospecting, relic, or jewelry detecting and does fine as a coin detector also. However, you are now paying a premium for the Gold Bug name, and the more capable Fisher F19 at the top of this list can be had in a better configuration at a much lower price. The Nokta. Unless you just want the name, or maybe just prefer a minimal control set, pass. Nokta Gold Kruzer ($559, 61 kHz) - Nokta/Makro started shipping the new Gold Kruzer model in June 2018 and with a change in the company name is now simply the Nokta Gold Kruzer. The Gold Kruzer is a variant of the old Makro Gold Racer that has been boosted to 61 kHz from 56 kHz and put in a waterproof housing good to 5 meters (16.4 ft). The Gold Kruzer comes with a 10" x 5" concentric coil and a 4" x 7.5" DD coil. The weight including LiPo batteries is 3.0 lbs. There are four coils available for the Gold Kruzer. Steve's Opinion - The Makro Gold Racer was one of my favorite detectors because until recently there was nothing running in this frequency class that had full target id and other options normally seen only in coin detectors. The Gold Kruzer takes it all to the next step by being waterproof in excess of ten feet. There are no other detectors running at a frequency this high that are fully submersible with built in wireless capability and therefore this detector may find favor with freshwater jewelry hunters as well as prospectors. The Gold Kruzer is worth keeping an eye on, and is a better value than it appears at first glance due to the dual coil packaging. 2024 Note: The Gold Kruzer has been reduced in price from over $600 to only $549 which seriously upsets the cart. This is an incredible value for what you get and well worth consideration. XP ORX ($549, 14, 28, 56, 80 kHz) - The XP ORX emphasizes gold prospecting and coin detecting in the promotional material. The XP ORX appears to be a version of the "Africa only" Depar DPR 600 made for sales in Europe, the U.S., and elsewhere. The ORX has been refined from that early effort by the addition of the ability to use the new X35 coils. Steve's Opinion - The XP ORX went through some teething pains with coils before settling into its final role as XPs gold nugget detector. I think the ORX is a great little nugget hunter personally (I love the compact design), but it seems to be overlooked my most serious prospectors, and getting more attention as a low cost alternative to the XP Deus for coin and relic detecting. The new lower price makes the ORX a serious contender, a big step up in capability from the Fisher 19 kHz models above, and a little less money than the Garrett 24K below for a more full featured detector. Garrett AT Gold ($639, 18 kHz) - The AT Gold was a totally new concept in metal detecting from Garrett Electronics when it was introduced. This full featured detector has everything you would expect from a dry land detector - LCD display, full control set and functions, speaker, interchangeable coils, and lightweight. But it is submersible to 10 feet! Even the speaker is waterproof. Note that the unit itself may be submerged but if you want to put your head underwater you will need optional submersible headphones. Weight including a four AA batteries is 3 lbs. The stock coil is a 5" x 8" DD elliptical. Many accessory coils are available for the AT Gold. Steve's Opinion - The Garrett AT Gold was an innovative concept when it was introduced, and was the only waterproof nugget detector option at the time. The nugget hunting world has moved past the AT Gold now, and unless it comes down in price it's hard to recommend for somebody interested primarily in a nugget detecting VLF. Only for Garrett fans really, and even then more for the relic hunting crowd. For a much better option, see the Garrett Goldmaster 24K below or one of several less expensive models above, like the Nokta Gold Kruzer. ads by Amazon... Minelab SDC 2300 ($3699, Pulse) - This model is unique as Minelabs first waterproof pulse induction metal detector. A key feature is that the detector is physically packaged in the proven F3 Compact military housing that is waterproof to ten feet and folds down into an incredibly compact package only 15.7" long and weighing 5.7 pounds including four C cell batteries. Steve's Opinion - I have used the Minelab SDC 2300 and I must say I was impressed. The waterproof compact design is perfect for hardcore backpack style prospecting. The main thing however is that the SDC 2300 comes as close to VLF type performance on small gold as you can get while being almost impervious to the ground mineralization, and hot rock issues, that plague said VLF detectors. In fact, the SDC 2300 will find gold nuggets smaller than most good VLF detectors can detect in mineralized ground. The SDC 2300 is also one of the simplest detectors to use and master on the market. The main caveat is that the detector is optimized for small gold with the hardwired coil, and so other ground balancing PI detectors are a better option for large nuggets at depth. It is also nearly twice the price of the Garrett ATX above, and so you are paying quite a premium for a little better performance on small gold. Still, the SDC 2300 is almost impossible to beat for the price, if the goal is just to go find some gold, any gold at all. If the budget allows, however, at this point I would pass, and go to the new Garrett Axiom below, which offers a much more sensible design, with many more coil options, and better capability for larger gold at depth. Coming Soon - Nokta PI Gold Minelab GPX 5000 ($4299, Pulse) - 2025 Note: The GPX 5000 is in the process of being discontinued but may still be available at some retail outlets. The GPX 5000 Pulse Induction (PI) unit has settings that essentially ignores nearly all ground mineralization and hot rocks you might encounter. The GPX 5000 has many adjustments for mineralized ground not available on other PI detectors including the latest and greatest, making it the most versatile PI detector ever made. The GPX weighs 5.3 lbs. not including the harness mounted battery, which weighs another 1.7 lbs. The detector comes with both an 11" round mono coil and 11" round DD coil. Over 100 accessory coils are available for the GPX 5000 (Minelab, Coiltek, Nugget Finder)! And more coils are being released every year. Steve's Opinion - The Minelab GPX 5000 can at this point be considered the reliable, well proven option, for just about any pulse induction task a person wants to consider. It has found a wide audience not just with nugget hunters, but with beach and relic hunters. This is in large part due to the incredible coil selection. For general nugget hunting however, the GPX 5000 faces new competition in the form of the Garrett Axiom above, for half the price. The Axiom is a better package from a physical perspective and more capable than the GPX 5000 on bread and butter small gold nuggets. However for 1/2 ounce and larger nuggets the GPX 5000 still has the edge due to it's superior large coil selection. Personally I lean Axiom for the ergonomics but a case can be made for either machine depending on the user. Minelab GPX 6000 ($6999, Pulse) - The Minelab GPX 6000 is a new pulse induction model that is just now getting into end user hands. The GPX 6000 is exceptionally light and well balanced compared to previous Minelab models, and promises to set new standards for ease of operation. The GPX 6000 weighs 4.6 lbs. and has three coils available at launch, an 11" round mono, 14" round DD, and 17" elliptical mono. The detector has built in Bluetooth wireless headphone capability and quick release Li-Ion batteries. Steve's Opinion - Minelab beat Garrett to the punch in making a very ergonomic metal detector for the 21st century. The GPX 6000 is an excellent choice for gold prospectors, with out of box sensitivity on smaller gold that exceeds the Minelab GPZ 7000. Sadly, what should have been rave reviews by users, has been muted by persistent issues regarding bad coils and hardware based electrical interference. I admit I feel like I have a little egg on my face, as I raved about the GPX 6000 a lot when it came out since mine had none of the problems that far too many people have been experiencing. Regardless of that, I still think when it is running like it should, the GPX 6000 is a superb detector. The closest competitor is the Garrett Axiom for $4000 less. I do think the GPX 6000 retains a small performance edge over the Axiom but whether it is worth three times the price will depend on the user. With gold pushing $3000 pros tend to want an edge, no matter how small, no matter the price. Minelab GPZ 7000 ($9499, ZVT) - The new Zero Voltage Transmission technology from Minelab takes gold prospecting to the next level. The new platform represents a break from the past SD/GP/GPX series in more ways than one, with a new weatherproof housing design based on the Minelab CTX 3030. The GPZ 7000 weighs 7.32 lbs. and comes with a waterproof 14" x 13" coil. There is one official accessory coil available at this time, plus one officially sanctioned aftermarket coil, but more are coming as I type. Brave souls can check out numerous hacked Russian coil options. Steve's Opinion - It's pretty simple. If you want the most powerful metal detector made for finding gold nuggets, get a Minelab GPZ 7000. The GPX 6000, Garrett Axiom, and even SDC 2300 can beat it out of box on the tiniest gold nuggets. But the 7000 will hit stuff plenty small, and more importantly, deliver the goods on the bread and butter gold that matter most to genuine prospectors who want to put weight in their pocket. The difference in small gold capability can be made up with options aftermarket coils, meeting or exceeding what the other models mentioned can do. Yes, it is heavy, and it is expensive, but most really serious gold prospectors are using the GPZ 7000 for a reason - when it comes to sheer performance, it's the best machine for the job. A Steve's Opinion summary - So maybe all the above is still too much information, too many choices. And you want to ask "what would you do Steve?" Well, I'm not trying to speak for anyone but myself, but here is my current thought on the situation. If you want a really great VLF nugget detector in 2025 at a great price the Fisher F19 is a standout value at under $300. The Minelab Gold Monster is however the best seller by far due to its superb sensitivity to small gold and an almost 100% automatic design, a big plus for beginners. As far as PI goes for me it's either GPX 6000 or Garrett Axiom. If money is no object and you only ever intend to use the machine for nugget detecting, then the 6000 wins the day. For me I do more than just nugget hunt so I find the Axiom to be a better general purpose PI for my uses, even though I am giving up a small edge on small gold nuggets. The Axiom is by far the best bang for the buck. Finally, if sheer power is all it's about, weight, price, nothing else matters, just performance, I still think a person has to go GPZ 7000. Yeah, for specific situations other machines might be better, but if I had to pay my bills with gold found fact is I'd be using a GPZ 7000. If I can offer one final word of advice, it would be to pay particular attention to what experienced nugget hunters are using in any particular region. Do not assume you are going to outsmart them, and find some model they have not already tried, and set aside, as less than optimum. Serious prospectors in any particular location will end up focusing on certain units that do the job. In areas of extreme mineralization this is usually a PI detector. In areas with less mineralization and lots of ferrous trash VLF units often are preferred. If you can discover what models the locals prefer, it will give you a head start in knowing what to use yourself. Above all, whatever detector you finally choose, dedicate yourself to mastering it. It takes at least 100 hours of detecting to become proficient with a detector model. Any less, and you are still practicing. Knowing your detector well is more important than what particular model of nugget detector you own. So there you are. Hopefully this helps some people out. I can be found daily on the Detector Prospector Forums and would be pleased to answer any questions you have on metal detecting and prospecting. Also check out Steve's Guide to Metal Detecting for Gold Nuggets. Sincerely, ~ Steve Herschbach Steve's Mining Journal Copyright © 2002 - 2025 Steve Herschbach - Please do not reuse or repost without my express permission.
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Garrett Axioms Maiden Voyage In New Zealand
Steve Herschbach replied to phrunt's topic in Garrett Axiom Forum
Great first outing report Simon - and gold first time! Some notes: I ALWAYS do a full factory reset when swapping coils. Yeah, you have to put custom settings back but once used to it takes like one minute. Critical adjustment is always run Speed in SLOW, will significantly smooth the threshold. Another critical change is in the tone, at least for me. I go to 30 normally and have even gone to zero as of late. Helps with high frequency hearing loss. Do not overlook trying the ATX audio option. Many people hate it but some really prefer it. abenson for example, prefers the alternative audio mode. Threshold I have been running as high as 20. You may need to lower volume to compensate. Too low causes audio drop outs or uneven threshold. I recommend running as high as needed to keep it smooth... but no higher. Engaging the ground balance window will balance out most any hot rock and even nails, but at some cost in stability. I tend not to do it but worth experimenting with if you have a really pesky hot rock. Good going getting gold first time out! And yes, as I have said 100 times, Axiom is better than it gets credit for. -
Compass Gold Scanner
Steve Herschbach replied to Steve J's topic in Blisstool, Compass, Tesoro, Troy, Etc.
That Power Level knob where the is a big OFF in red letters - turn it to "not off". Here is the manual: compass-gold-scanner-instruction-manual.pdf -
This page has links to a collection of online "books" about prospecting and metal detecting subjects of interest. Most of these were actual printed books or brochures that are now available as html or pdf documents. In the case of pdf documents especially you can download and save these creating your own library of essential information. Many of these are out of print and hard to find so we are very lucky they are being scanned and made available on the internet. Be sure to also visit Steve's Guides - articles about basic metal detecting and gold prospecting subjects collected from forum posts on this website over the years. Metal Detecting How Metal Detectors Work by Mark Rowan & William Lahr - Originally published by White's Electronics as a booklet P/N 621-0395. Basic technical information on how induction balance and pulse induction metal detectors work. Metal Detector Basics and Theory by Bruce Candy - Bruce is a co-founder of Minelab and the man behind their most advanced designs. This information delves into much greater detail than the above link and has many more illustrations and diagrams. Metal Detecting Terminology - Metal detecting terminology and definitions, with an emphasis on Minelab technology wording and descriptions. The Sport of Coin Hunting by Charles Garrett. The basics of finding coins with metal detectors. The author designed and built his own metal detectors, and Garrett Electronics was established in 1964 to manufacture and market his inventions. How To Search Sand & Surf by Charles Garrett. Treasure recovery at the beach including coins and jewelry. Introduction to European Metal Detecting by Charles Garrett. Metal detecting for coins and relics in Europe. The author designed and built his own metal detectors, and Garrett Electronics was established in 1964 to manufacture and market his inventions. Gold Prospecting with a VLF Metal Detector by Dave Johnson. Dave is the Chief Designer for First Texas Products and has been involved in designing most of the VLF gold prospecting detectors sold over the last 30 years. This is an excellent primer on using VLF detectors to prospect for gold. Coil Size vs Detection Depth by Carl Moreland, on this website forum. A chart with notes from PI guru Eric Foster illustrates the relationship between coil size and depth on PI detectors. The History of Metal Detectors, with Emphasis on Gold Prospecting from First Texas (Bounty Hunter, Fisher, Teknetics) by Dave Johnson. A talk given to the El Paso Chapter of the GPAA February 12, 2008. Metal Detecting Technologies for Gold Prospecting from First Texas (Bounty Hunter, Fisher, Teknetics) by Dave Johnson. A short essay of key technologies for gold nugget detecting. Understanding the PI Metal Detector by Reg Sniff. An excellent, understandable primer on pulse induction metal detectors. Metal Detector Information - Get lots of great answers to basic detecting questions along with info and field reviews of Tesoro detectors. Common Questions About Metal Detecting from White's Electronics. Fisher Intelligence 5th Edition by Thomas Dankowski. Thought provoking articles on aspects of metal detecting not often talked about. Advanced Nugget Hunting with the Fisher Gold Bug Metal Detector by Pieter Heydelaar and David Johnson. This out-of-print book is a good basic text on nugget detecting. Although it uses the original Fisher Gold Bug as an example the information applies to most nugget detectors. Part 2 by David Johnson is an excellent primer on hot rocks. The Painful Truth by Thomas Dankowski - There is more good stuff left to be found but hidden from current technology - read why. A follow up to Dankowskis classic Beneath The Mask article. Head-To-Head Comparison Testing by Thomas Dankowski. It is not as easy as it looks! Why people get different results testing metal detectors, and how to do it properly. Halo Effect & Related Ground Oddities - from Fisher by Dave Johnson. An explanation of factors that can possibly enhance detector depth - myth or reality? White’s MXT Engineering Guide - by Dave Johnson. An inside look at the metal detector design process, with details about the White’s MXT and GMT models. An Engineers Guide to the Spectrum XLT - by Mark Rowan. The details behind the design of the innovative White’s SignaGraph display, first used in the Spectrum XLT detector. Steve's Guides - Articles about basic metal detecting and gold prospecting subjects. Metal Detector User Guides & Catalogs - User guides, catalogs and brochures from various manufacturers. ads by Amazon...
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Minelab GPX 4000 Faulty???
Steve Herschbach replied to ikaruz's topic in Minelab SD 2000 - GPX 5000 Forum
Whatever worked best for you with the GPX 4500 as far as coils go. You know your ground and desired items better than I do. 15x12 Commanders are nice. -
Minelab GPX 4000 Faulty???
Steve Herschbach replied to ikaruz's topic in Minelab SD 2000 - GPX 5000 Forum
No, unless a specific timing on the newer models not available on the 4000 will help. The so called Fine Gold setting on the GPX 5000 helps in areas where there are hot rocks the GPX 4000 can't deal with. Fine Gold is not deeper, less actually, but handles bad hot rock situations better. But few people have ground like that. Just one example, but depending where you are a 4000 may be every bit as good as the later models. -
Minelab GPX 4000 Faulty???
Steve Herschbach replied to ikaruz's topic in Minelab SD 2000 - GPX 5000 Forum
Never air test a PI against a VLF. The whole point of a PI is to retain good depth in ground that causes a VLF/Multi to lose 25% or more of it's depth. I detect ground where your Deus 2 would fail and the GPX get five times or more depth. If you are going to detect in the air or in very low mineral soils, you do not need a PI. Either test a PI against a VLF by burying test targets in highly mineralized soil or may as well not waste time testing. Slightly modified post below copied from long thread at https://www.detectorprospector.com/topic/11421-fisher-impulse-aq-discrimination-explanation/page/15/#findComment-113487 Some people think a PI detects a lot deeper than a VLF and in the case of a very high power PI that can be true. But for what I would call mid-power PI detectors like the TDI SL or Garrett ATX, running off 8 AA batteries, the depth in low mineral ground running the same size coil is not much different than a good VLF. Assume just for illustration that a White's MXT with 12" coil and White's TDI SL with 12" coil get the same depth in mild ground on one particular test target. Now we have a magic dial and can turn up the ground mineralization. As we increase the mineralization, both detectors lose depth. The MXT loses depth at a faster rate however. I can't give you an exact ratio, but you can reach a point where the TDI now goes much deeper than the MXT. Yet the TDI is still getting less depth also.... it just does not lose as much depth as quickly as the MXT. It is also the case that with a PI if you have no ground balance filter engaged you can get the best depth in low mineral ground. Simply engaging the ground balance filter immediately robs a little depth. However, by engaging the control you do better in high mineral ground by comparison to the MXT. Whether you engage or disengage the ground balance circuit depends on the ground you are in. PI detectors do best by comparison to VLF detectors when ground conditions are the worst. The milder the ground, the less good a PI looks by comparison to a good VLF, to the point where you are better off with a good VLF due to the superior discrimination. Where I am in Nevada a White's GMT or Goldmaster 24K or even MXT is a better all around gold prospecting detector than a White's TDI SL in a lot of the desert soils due to the mild ground conditions, and the hot VLF detectors can detect tiny gold nuggets a TDI can't see even in direct contact with the coil. To sum up, the pulse induction will shine best where ground conditions are the worst. In general sands derived from volcanic activity and granitic rock, with high magnetic mineral content. People in mild sand and gravels... not so much. In those situations the main benefit of a PI is the ability to effectively run coils much larger than those available for most VLF detectors. -
Was out finding gold so late to reply. Alexandre is a member of the forum and last posted May 1, 2025. If you are referring to me I sold my AQ in 2021 as the new version was said to be weeks away. I’m still waiting four years later. It left a bad taste in my mouth so I'm not a good candidate as a guest as I tend to say what I think. I'm not inclined to overlook what was promised to those of us who took part in the Impulse AQ early buy program. I was one of the first involved and was a major supporter of the project. It's all there in the old forum posts. What I would say now would not be pretty so in the interest of all I will have to pass.
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Where's The Minelab Gold Monster 2000 Forum?
Steve Herschbach replied to Gerry in Idaho's topic in Detector Prospector Forum
https://www.detectorprospector.com/forum/70-minelab-gold-monster-forum/ https://www.detectorprospector.com/metal-detector-database/minelab-gold-monster-2000-r167/ -
Reducing Image File Size From Cellphone Cameras
Steve Herschbach replied to Wild Bill's topic in Detector Prospector Forum
I’m comfortable with my settings and space. This is mainly to help people with uploads that are stalling or timing out due to poor connections or data limits on their plans. -
Gold Bug 2 New Ground Reject LCD / Knob
Steve Herschbach replied to Desert Dawg's topic in Fisher Gold Bug 2 Forum
I doubt it. Again, it is just a control. The issue you are describing has something to do with the internal circuit or even just a substandard coil. The Gold Bug 2 requires a lot of internal hand tuning and it may be Fisher is cutting corners both in the people doing that work and in the quality control area. Marketing and sales seem to be on skeleton crew status and little reason to doubt it is the same elsewhere in the company. But whatever, as I said before, all that matters is the old one worked better for you, and that is a shame. I know if I was shopping for a Gold Bug 2 I’d be more inclined to be looking for an older model with the old 6” epoxy filled coil instead of the newer units. Something made prior to 2015. -
Gold Bug 2 New Ground Reject LCD / Knob
Steve Herschbach replied to Desert Dawg's topic in Fisher Gold Bug 2 Forum
A ground balance setting is a ground balance setting on the GB2. The control does not impose a "buffer" on the setting and would have nothing to do with how often the setting would need to be changed. The only difference between the controls is how far they must be moved to change a certain amount of GB setting. A single turn control requires miniscule moves of the control, a ten turn or more control allows for easier, finer adjustments. I'm not going to swear there were not other changes made in the GB2 that might account for what you are experiencing, but the ground reject control would not be the focus of your problem. Bottom line I guess is you think the old models worked better. Despite what was said earlier the new ground reject knob is an “infinite turn” knob. Slow turns make fine adjustments like the old fine control, spinning it engages a coarse adjust like the old coarse turn knob. The setting goes from 00.1 to 99.9 and so there are 1000 potential settings. I’m not sure how the resolution of the older analog controls is measured, but I’m not seeing that there is a loss of fine tune capability here. -
Replace GPX 5000 Quick Track Button
Steve Herschbach replied to grumpy's topic in Minelab SD 2000 - GPX 5000 Forum
https://www.detectorrepair.com/index.php/store/9511-0102-wiring-loom-handle-for-gpx-series $46.99 If you want the genuine replacement part they will not be around forever. The official Minelab parts site shows them as soon to be discontinued: https://parts.minelab.com/9511-0102-p/9511-0102.htm “Last Time Buy Soon to be discontinued” -
It’s Released! Tarsacci MDT-8000 DX
Steve Herschbach replied to Ridge Runner's topic in Tarsacci Metal Detectors
Given how the company does not like to bothered with things like website updates, then the idea they would want to deal with customer returns, upgrades, and mail backs….. well, no. It’s not could we update, but do we want to, and the answer is no. You want the new stuff, buy the new model. Just like the “good old days”. Add a feature, well, it’s a new model, buy it or not. -
It’s Released! Tarsacci MDT-8000 DX
Steve Herschbach replied to Ridge Runner's topic in Tarsacci Metal Detectors
The color really means nothing; it's about magnetic content. Simply drop a good magnet in the sand and see what happens. A little sand sticks to it, not very mineralized. If it comes up covered in a ball of sand that's highly mineralized. People talk about black sands but there are magnetic (magnetite) black sands, and there are also non-magnetic black colored sands. This is what the magnet in the bottom of my scoop looks like after just a couple digs. Makes it partially ineffective at why I have it there - catching bobby pins. -
It’s Released! Tarsacci MDT-8000 DX
Steve Herschbach replied to Ridge Runner's topic in Tarsacci Metal Detectors
I have what I hope is a simple question. Is the actual hardware any different? Do the coil, rod, control panel, etc all look the same? Same headphones and headphone connections? Did the screw on lid to the battery compartment at least maybe get fixed from the original ultra fine thread, prone to cross threading, to something a little more robust? It claims to be more waterproof and fixing that cap is only thing I can think of that would make a difference. Thanks. -
Did I Miss Something?
Steve Herschbach replied to mntnflyr4fun's topic in Other Metal Detector Brands Forum
Some kind of mishmash of two separate products. What does "this return" mean? AI results? AI is the quick road to misinformation when it comes to metal detecting. -
Reducing Image File Size From Cellphone Cameras
Steve Herschbach replied to Wild Bill's topic in Detector Prospector Forum
We have come a long way. When I first started making websites back in 1998 image optimization was critical. Very critical. Limited storage space and bandwidth were show stoppers. Now we are blessed with vastly increased resources so it is less an issue. However, the new phones do take superb photos that have huge file sizes, and it can trip up people who try and upload them to the forum if they have poor connections. I have a lot of server space, but even then I have to do some weed whacking now and then looking for ridiculously large files that have been uploaded by somebody. But mainly people will find things go easier and faster if they are not accidently trying to upload oversize images. When people report problems posting that is a number one cause. My first website in 1998/1999. The entire site probably took less space than some single large images on this forum. -
Reducing Image File Size From Cellphone Cameras
Steve Herschbach replied to Wild Bill's topic in Detector Prospector Forum
It does help Bill, thanks, and thanks for posting this. Which app were you using? I use Image Size: https://apps.apple.com/us/app/image-size/id670766542?platform=iphone https://play.google.com/store/apps/details?id=de.vsmedia.imagesize&hl=en_US&pli=1 Another trick for resizing images is that emailing huge images is also an issue. So if you email yourself an image on an iPhone, it gives you reduced size options that you can then save and use. I assume Android does something similar. For those that know how to do it converting to jpg can result in huge file size reductions for photos. As far as mistakes go, click the three little dots in upper right of your post, edit away. I already deleted the extra image. Full Members can edit posts for up to 90 days. New members are unable to use the edit function as it has been abused to add spam to posts a weeks later. -
Welcome to the forum, from an expatriate Alaskan.
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So to sum up: 1. Cover everything but controls with aluminum foil to prevent false signals. 2. Then completely seal controls after getting them set for normal hunting with silicone to prevent eventual deterioration of washers, etc. 3. Only use underwater to prevent excessive heat buildup from shortening life of internal components. 4. Never attempt to take the batteries on a plane. 5. Start a savings fund to cover eventual out of warranty repairs.
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Finally Decided To Register An Account While I Can
Steve Herschbach replied to PulltabKing's topic in Meet & Greet
Welcome to the forum! Your joining and post is one of a couple that has made a real difference in the direction of the forum going forward. Knowing more directly there are people out there lurking who appreciate this forum matters more to me than you can know. So thanks for bringing that better to light for me. https://www.detectorprospector.com/topic/29406-spam-attack/page/3/#findComment-301539 -
It’s Released! Tarsacci MDT-8000 DX
Steve Herschbach replied to Ridge Runner's topic in Tarsacci Metal Detectors
I’m sorry I did not know you were talking about the manufacturer. You quoted our new member specifically and so it seemed you were addressing him. I was responding to that perception on my part. Yes, of course Dimitar or his dealers should be doing videos, just like they should be updating websites or putting out manuals. Bottom line is I have long thought this is as much a hobby as a business for Dimitar, so people may as well get over it. It’s like he makes what he wants for himself, and if you want to have one also, fine. But other than that it’s obvious it’s not a big concern to him one way or the other. In this day and age of fishing for eyeballs it is surprising nobody has got one just to be the first to put out a video on it. I think that shows just how far off the mainstream radar Tarsacci really is.
