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  1. 14" on a silver dime is the new standard. 10" was the standard and now it's 14". In Calabash's test videos: Anfibio hits it hard. Equinox hits it hard. Xp Deus a weak hit. Detectors are getting better. A new standard to hit or break for new detectors in 2021.
  2. Metal detectors aren’t just for hunting for gold. They’re also enormously useful tools for law enforcement. And yet, while most police departments have metal detectors on hand for crime scene investigation, far fewer have trained and qualified officers who know how to use them correctly. But when deployed properly, metal detectors can be a game-changer when it comes to effectively investigating a crime scene, uncovering evidence that might otherwise go detected while at the same time preserving a crime scene from disturbance. The evidence of metal detectors’ effectiveness is conclusive: A
  3. Norvic asked why I was so proud of a VLF when I own and have posted much success with the other higher end detectors. It was my post on rating the higher end Minelabs....so here goes. There are many factors to my craze and style of detecting, but my finds are the facts and not many people can compare, unless they too use the tools (detector) and hunt the style I do. I consider myself a gold hawg or gold pig. I chase it all in terrains flat or tall. Terrain - I live in the Northwestern state of Idaho and much of my detecting in the surround state of ID., is Oregon, Nevada and occ
  4. Hey guys, Can someone explain to me in simple terms what is it and what we accomplish by using a slight ground balance offset (either positive or negative) on our machines? I remember for example that when using an Xp Deus in the past, whenever I needed some little extra depth boost I was manually set the GB a little lower than the actual ground phase of my area but in the expense of greater ground noise and instability...the opposite when I needed a more quiet run....However I never deep dived into this concept and never understood how and why this really worked. Would be great to unde
  5. Greetings fellow detectorists, I'm hoping someone with a deeper understanding of the technological methods of the Equinox series might be able to shed some light on why certain Interrogation methods work they do. I think we are all aware of the little trick whereby a potential target in the mid conductor range in multi frequency can be examined in 10hz; a sudden jump from the teens to the twenties indicates a likely bottle cap. My questions are two fold; first, what is responsible for this phenomenon? Why does a change in frequency potentially change the vdi of a target, and what determines wh
  6. In addition to nugget hunting I am also a history buff and I would like to learn more about metal detector technology, its history and sequence of development. I understand that the BFO (Beat Frequency Oscillator) technology was used in the very early metal detectors. Right now I would like to learn what is the difference between TR (transmitter receiver), induction balance, and VLF technologies and when was each one introduced to the market. Is there anywhere where I can find a list of manufacturers, the models (technology) they offered and date range they were offered? I have searched
  7. 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. 😁
  8. (Long article. If you think you'll get bored of the background info and stop in the middle, skip to the Testing section to see what a metal detector has to say.) Introduction Detectorists occasionally come across ceramic tableware/dinnerware at sites. For example, I found some in a ~1880's Colorado ghost town. A friend of mine found a piece (which I was able to identify and date to the 1890's) near a high altitude Colorado miner's cabin associated with a small silver mine. Western USA explorers/settlers/miners may seem backwards and uncivilized (and that is true in some cases) bu
  9. I noticed early on that in discussions about the conductivity of gold, that gold is considered a low conductor. This is confusing to me. My understanding was that gold is a high conductor, whereas only 2 other metals are higher conductors. Silver being the highest conductor, and copper being the next highest, allowed by gold. Iron is way down on the list. Can anyone please explain this?
  10. Found some clubmates discussing who (and when) invented the first pinpointer. Google just found some hints. Feel free to discuss...
  11. Years ago I had a wise customer who was always trying to make things better. He spent much of his free time chasing gold nuggets at Rye Patch, NV in the 90's and early 2000's (when pickings were good). He always wanted to cover ground and chase the big ones. One time he calls me to order some Coiltek coil wiring (extension) as he has long dreams. I seen him out there with his new long shaft and boy was it longer than I had expected. Has anyone seen anything similar or just as crazy? On a side note, this beautiful Horse Nugget of 6 ounces was found in the road at Rye Patch proper.
  12. First, I new here so hello and thank you for contributing to this forum. I just purchased my first detector and am excited to get started in this hobby. I bought an xterra 705 with the 8x5 18.75khz coil to go along with the standard 7.5khz round coil. I'm hoping to take some trips looking for gold over the summer, but I live in Texas so I was also looking for a general purpose detector for parks, beaches, dinking around. I'm thinking this setup gives me a pretty solid all arounder to get started. I am wondering about the different coils for these things and how to get the most out o
  13. Here's a piece of an ad that showed up on my browser page while reading the forum. I sometimes miss figuring things out but this one (on the surface) seems too far out there to have me fooled, but I never really know. The one on the left is particularly bizarre. Maybe just kids toys that don't actually work but make them think they are detecting? (I could have clicked the ad and gone to the site but I'm always concerned that this will lead to me being targeted by more of their ads.)
  14. https://www.abc.net.au/news/2021-01-29/water-diviner-bob-biggs-says-he-can-divine-for-gold/13084288
  15. While this topic is hot and on our minds, I'm going to make a request. Could someone with detailed technical & engineering knowledge write up a report explaining Iron Bias at an intermediate-to-advanced user but still layman's level? The kind of description I'm requesting is one similar to what was done in Randy Horton's excellent monograph Understanding Your X-TERRA which contains an interview with Minelab scientist&engineer Dr. Laurence Stamatescu (starting on page 79) where he melds the right combination of technical info and easy to follow wording. Maybe there has already be
  16. I do what I can to foster competition that develops alternatives to the all too common VLF detector. There are plenty of options out there, but in my opinion they all weigh too much or cost too much. Usually both. I envision people out there with a popular VLF metal detector for beach, relic, or gold detecting. These machines all sell for around $700 and weigh 2.5 - 3.9 lbs. Perhaps they would like to add a ground balancing PI (GBPI) to what they have. I think that for "normal people" with normal budgets a machine under $2K and under four pounds just makes sense. It would be more tha
  17. Ok folks, someone please tell me this is just a bizarre series of coincidences. On three separate occasions now I've come across a good signal out in the forest here in Virginia, usually in the pulltab range, and dig only to find a hibernating snake. How in the world is that possible? Is the metal detector actually detecting the snake or are they just over a target? I can't figure this out. Any old hands wanna chime in here?
  18. I have got up on my soapbox every year about this time to prognosticate about the coming year in metal detector technology. 2020 was an especially significant year as we lost another major player in the industry. A few years ago it was Tesoro going out of business. In 2020 we learned that White's is closing shop and being acquired by Garrett. It is unknown if Garrett will attempt to keep White's alive as a separate product line, or simply acquired the rights and technology to keep somebody else from doing so. At the moment it seems White's has gone away for good, but it is not impossible Garre
  19. Hi Folks, Thought I would start a thread showing my first attempt at an analog detector, I've been working in the electronics field for many years mostly in the analog/rf area. Hope everyone enjoys the process, and any input or suggestions would be appreciated. I'll try and post as I go along, but this is my after hours hobby, so updates may come every few weeks. I apologize if this goes overboard on the images. So here goes..... Here is the overall unit, the display will tip up and turn on. Closeup of the display Display tipped up, it will show RSSI across
  20. 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
  21. Been meaning to do this test for a while. I used 3 machines that have VDI. Multi Kruzer, AT Pro and Gold Racer. Test was done as follows: Plastic bin 5" high with masking materials above and targets placed directly below. 3 different masks were used: 1 rust, 2 magnetite, 3 crushed coal. All 3 placed into baggies to avoid miserable cleanup after and bags were layed flat with material distributed as even as possible within the bag. All machines set at 80% gain/sensitivity. the Multi Kruzer had the Super Fly coil which I kept on as it is most likely similar to the Simplex 11" and A
  22. We all have seen many videos comparing metal detectors , changing the coils, frequencies and all kind of settings so they can maximize the capabilities of the "machines"! But what about the same machines abilities to detect larger targets like a 20x20 cm or 40x30cm on greater depths?? Am in the only one Qurious about it 🤪 Have someone seen something about it??
  23. Have you modded a detector or a coil over the years to make it perform better than the manufacturer intended? Did you get good results? I just did a search on this forum and found 168 hits for modded. What is your favorite mod?
  24. Anfibio is rated waterproof to 16'. Tarsacci is rated to 30 min underwater. Both ip68 why the difference. I can't find what the Equinox rating is.
  25. I've been trying to make a PI detector as a learning exercise in another forum(Geotech). Asked the question below but haven't got a reply. Maybe someone here could answer the question. Nugget sizing info: We are often asked how many pieces per gram or ounce. It is very hard to predict how many pieces there are per gram or ounce as the # of nuggets by weight varies quite a bit per batch. But in general you can expect around 1-2 pieces of gold for 4 mesh, 2-4 pieces of 6 mesh per gram, 7-12 pieces of 8 mesh per gram and around 15-20 per gram for 10 mesh. You can expect many more piece
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