#33
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well ok...maybe OKM, though have drawbacks as any kind of apparatus and lack of informations, is useful (as computerized fluxgate mag) to locate magnetic masses and using other strategies to locate cavieties , rooms, etc So could be really useful if you dig places already known holding treasures... I'm talking about the fact they don't explain what's inside...they don't provide enough support...they use exagerated claims as you stated etc. Some LRL are not so smart... you know. At least you buy a fluxgate mag + other things (for many thousand dollars) + computer when buy OKM! When you buy an LRL you are lucky if the device just not detect its own internal noise as signal... no fluxgate sensors inside, no real working technology... just junk. I think that many "wallmart" LRL detectors, selled at say $50, could be useful as the more expensive one out there.... Just some seems having a kind of detection e.g. on static electric fields. Are they useful ? I have a lot of dubts that anyone found something (good) using one of these things. My opinion, maybe I'm wrong. Don't know. Just don't care... I know that all these devices have enormous problems with electrical power lines... interferences etc so a huge number of false signals... and even the theory behind their working as "anomalies detectors" (again static fields etc) seems to me a pile of pseudo-science claims. Again, maybe I'm wrong. Can't see facts, proofs, any real science behind these things. About MD... well not 6meters or 9meters... impossible for MDs if there isn't an enormous metallic mass. But I know that something really valuable was found also at 2.5 meters underground using classic PI detectors with large coils (PSII). No VLF could go in that range, but you know this fact before buy ! Anyone can tell you, everybody knows and no manifacturer of VLF claims meters of detection range. They are useful for coin hunting... for surface relics... small objects at small depth. But they can disc and this is an important feature in messy sites with lot of iron, foil etc Also I know that many users of OKM (and similar) devices often use after and before digging a powerful depth PI (lorentz, PSII and the like) cause many times OKM apparatus is not so good identifing metals, mixing cavity informations with other things... thus giving false positives... and so, without a good MD, you have to dig to discover if what there is underground is metallic or not. And no Whites or Garret or Tesoro can help on this kind of work! Of course, no "toy"-MD is really useful in any kind of serious search... that's why no one would buy and prices are extremely low (I see also 15$ on ebay!). Totally unuseful stuff, often made in china...only waste of time... Best regards, Max |
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