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Found 47 results

  1. From things I've read and heard, there is a small but loyal following for at least some of the CZ series (with single digits, -3, -4, -5, -6, etc.) and even claims that they are still today among the best coin detectors. I wasn't detecting when this series was available and don't know any more than a few snippets here and there in posts. They do show up on eBay and from (at least some of) the prices, I surmize they are still in demand. Would someone post an overview of the series, highs and lows, pluses and minuses, etc.? I think I've read that Tom Dankowski used to mod one of these models for extra depth. Also wondering if Dave Johnson had a hand in the design/engineering of this series or if they occurred in the time window when he was working elsewhere.
  2. Recent Discovery

    A guy found this detector in a wood pile at a local factory. Looked like it had been there for years, weathered badly, shaft was broken and coil was busted. As a challenge they gave it to me. Two days later I installed batteries and low and behold it came on. Couldn't find a manual so I went into experimental mode and can say I was impressed with the air test (for a China product). To start with I thought it was a single tone machine, dime and nickel gave a high tone, but adjusting the ground balance and the discrimination revealed attributes that reminded me of the TDI. Now a nickel gives a low tone and a dime remained a high tone. Next I took the machine to my test garden of over 10 years and was shocked to hear a repeatable response of my deepest targets. Please note, I’m not promoting China products, only indicating what I found. There is one adjustment on the side that I’m wondering about not sure what it might be. Would also like information about this machine, the internet really doesn’t indicate when they were manufactured or much detail.
  3. Very interesting Steve. I'm testing right now new polish metal detector RUTUS Alter 71: http://www.rutus.com.pl/en In this unit you can adjust frequency by 0.2kHz step from: 4.4kHz to 18kHz...
  4. QED Review

    So far there has been no real “direct” reviews of the QED, in effect just innuendo clouded by politics, which is not helpful. With the help of a friend I've just finished some testing of the QED and want to share our impressions here in the hopes of getting the ball rolling for some quality discussions (but maybe this is being too optimistic?) We hope and believe our tests were rigorously objective, the QED was used for general gold hunting and also comprehensively tested on buried real gold pieces of various sizes in a variety of soils, considerable care was taken to ensure no placebo/bias.* We deliberately tested on only frequently detected but historically very productive public fields, not private property in which it can be relatively easy to find gold using any technology due to only ever seeing a few detectorists. First and foremost, important details of the QED's method of operation that are different to other detectors which needs to be clearly understood: Unlike Minelab detectors, the QED has a “dead zone” that can be varied using the Volume control. The threshold is set using the Bias control and has 2 different audio threshold settings, an upper and a lower value. When the Bias is turned down in number below the threshold lower value, OR, turned up in number above the upper threshold value, the “Threshold” audio increases as per usual. Suppose for example, the lower audio threshold bias value of the Bias control happens to be 50 and the upper threshold bias number happens to be 60. Then if the Bias is turned down below 50 OR turned up above 60, the audio “threshold” level increases as per usual. For these threshold examples, 50 and 60, small gold (fast time constant targets) “in effect” produce signals less than 55 (half way between 50 and 60), and larger gold “in effect” produce signals more than 55. If the Bias is set at the lower threshold limit, 50 for example, then the detection of small gold will give the usual INCREASE in audio level response, and larger gold will give a BELOW threshold level response, OR If Bias is set at the higher threshold limit, 60 for example, then the detection of larger gold will give the usual INCREASE in audio level response, and smaller gold will give a BELOW audio threshold level response. Similarly with ground noise; some ground noise will in effect produce signals below 55, so that if the Bias is set at 50, this ground noise will give an increase in audio sound, but if the Bias is set at 60, this ground noise will give a below threshold audio response. Conversely, if the ground noise is in effect above 55, then if the Bias is set at 50, this ground noise will give a below threshold audio, but if Bias is set at 60, this ground noise will give an increase in audio level. Signals in effect BETWEEN 50 and 60 are in the “dead-zone,” for which the audio is below threshold. Signals in effect below 50 OR above 60 give an increase in audio. So if threshold is set at the lower threshold of 50, then faint signals from small gold will give an above threshold audio, and large targets a below threshold audio. Whereas its the opposite for the upper threshold of 60, faint signals from large gold will give an above threshold audio, and small targets below threshold audio. So for shallow small gold select the lower threshold limit, for big deeper gold select the upper threshold limit. Bigger target signals will produce above threshold signals regardless of whether they are small or larger targets. However the Volume control controls the dead-zone width; the gap between the upper and lower threshold Bias settings, that is, the dead zone gap is increased by turning the Volume down, or decreased by turning the Volume up. In fact the QED can be set to operate with NO dead-zone (like the usual Minelab PI audio). To do this: a. Vary the Bias between the upper and lower threshold. Note the gap. b. Increase volume a bit. c. Re-do a. and note the decrease in the gap. d. Continue to repeat a, b, c until there is no gap. (This will allow some feel for true ground noise etc.) However the QED audio has a very low level signal EVEN if below threshold, This below threshold faint audio signal is just the pitch signal only, and detects all signals, ground noise, target signals, whether long time constant or short, and EMI. But this below threshold pitch sensitivity is not as acute as the audio set at threshold per point 2 below, and it is very soft. Yet even further, if a target or ground noise (or EMI) does drive the audio below threshold, the nature of the audio is that it has the usual “re-bound” response once the coil has moved over and past the target or ground noise. I refer to the lower pitch audio following the initial target higher pitch audio (“high-low”) or the opposite; the higher pitch audio following the initial target lower pitch audio (“low-high”) effect known from Minelab PI's. So for moderately weak target signals that cause the audio to dip below threshold once the coil moves beyond the target and the audio then rebounds above threshold. To recap; for these targets, as the coil passes over the target the audio goes first below threshold THEN above the threshold. However for the fainter of these target signals (the important signals one listens for in thrashed ground), this rebound signal is hard to discern compared to the same signal that would occur if the Bias had been set at the alternative threshold setting for which the audio signal then would have given an initial increase in threshold as the coil passes over it and then a below threshold rebound. Therefore, it is important to understand that you EITHER need to set the Bias to chase the faint small targets in shallow ground (Bias at the lower number setting), but lose out a bit on the faint large target signals OR set the Bias to chase the faint larger targets in deeper ground (Bias at the higher number threshold setting) but lose out a bit on the smaller targets. The QED has a “motion” audio response; meaning the coil has to be moved to hear a signal. It can be operated both quickly, and also, remarkably slowly. If the coil is moved “remarkably” slowly it is possible to hear the average audio detect a very faint target above the audio “background random chatter”, considerably more readily than if the coil was moved at a typical realistic operational speed. When depth testing and when you know where the target is, beware that you do not slow down the coil swing to an artificial unnatural swing speed to enable the detection of a deep target at its known location.* Important recommendations: 1. It's very important to get the threshold (Bias) spot on for optimal results, If the threshold level is too high, then faint signals get drowned out, but if the audio threshold level is too low then only the residual very faint pitch signal remains, but this faint pitch only signal is less sensitive to target signals than the audio set optimally as per point 2 immediately following. 2. The threshold must be set so that it is just audible; in effect just immediately below the “real” audio threshold signal, so that what you are hearing is just between only the pitch signal and actual above threshold audio. 3. Note that the effective principal threshold control (Bias) is temperature dependent and requires reasonably frequent adjustment over time as the ambient temperature changes to get best results. Therefore there is NO actual specific optimal Bias number setting, rather it entirely depends on temperature. It can be as high as 70 in very hot conditions 4. Once 2. and 3. are optimally achieved, you will find that the GB setting has to be spot on for best results. If you find that it is not critical, you really need to re-address points 2. and 3. 5. The QED does produce ground noise that sounds on occasion like a target. If you aren't digging some ground noise you do not have it set up properly, especially in variable soils. With ANY detector (automatic GB or Manual) altering the GB setting slightly to eliminate a faint “deep target-like signal” will result in eliminating the faint signal whether it is ground noise OR in fact a deep real metal target. 6. You need to listen to the soft “subliminal” threshold of the QED very carefully, quality headphones are a must. 7. “Gain” acts as a sensitivity control as you would expect. I suggest that the QED is best used as a specialist very fine (Small) gold detector. It produced a reasonably clear but quiet response to the extreme small gold (of the order of 0.1 g), we managed to find 5 tiny pieces in well-worked ground in all totaling 1 gram, although the SDC would have picked 5 of the 5, but not so well in one location due to power line noise (This could be remedied somewhat by lowering the Gain of the SDC and using minimal threshold). However, we purposely went over exactly the same ground with the SDC with the SDC set at a lower threshold and 3 on the gain, and then found 3 more pieces of gold; we are 100% sure we had already passed the QED exactly over the target locations so we put this down to QED ground noise masking targets. The QED struggles compared to the SDC in the more mineralised soils, however the QED does seem superior to the ATX. To get the most out of the QED, use a small coil such as an 8” Commander mono, and set the Mode as low as possible so long as the ground signals do not become too intrusive. Usually 1 or 2 is OK for Minelab coils, but some other coils may produce too much ground noise at this setting so you may need to increase the Mode to 3 or above dependent on the ground. Further, we got some very thin aluminium foil and very gradually trimmed it down until the SDC could no longer detect it. This represents particularly fast time constant targets (“extremely” small gold), and found that the QED did still detect it, but only within several mm of the coil surface, not further. But this does mean that the QED will detect extremely small shallow pieces that the SDC will not. Alternatively we suggest the QED is also a suitable lightweight low-cost patch hunter when used with a large coil with the Mode turned up so that there is less ground noise. For the sake of completion, to answer questions posed of the QED depth for an Australian 5 cent piece compared to the Zed both using the same sized coils. We measured this carefully and we are not prepared to give exact figures to avoid any trivial arguments, other than to say that the QED detected between 60% to 2/3rd of the depth of the Z. The QED susceptibility to EMI in areas remote from mains compared to the 5k on EMI noisy days? In one word: “Good. The QED susceptibility to mains in urban areas compared to the SDC or Zed? In two words: “Typically Bad.” The QED’s main strength is its cost, light weight, ergonomics, and simplicity of use, and yes it IS definitely simple to use, but a bit “fiddly.” It has no “magic settings” once you understand exactly how it operates as described above. Going back to the SDC really highlighted the difference a light weight detector can have on general comfort and enjoyment of detecting, and our experiences with the QED underscored Minelab's poor ergonomics. In our opinion the QED fits a market where people are looking for a cheap detector capable of finding small gold in thrashed areas, and are wanting more coil choices without the specialised "one size fits all" approach of the SDC. Good value for money. Its main weakness is its underlying ground noise, which although having the advantage of being “hidden” in the dead zone, nevertheless limits depth compared to lower ground noise capable detectors, for targets other than the very fast time constant targets. In summary it works relatively best in the less mineralised soils for small gold. Beyond the scope of the above suggested prospecting (very small gold & patch hunting mainly in relatively unmineralised soils), I choose not to comment further, other than we will not be using the QED for purposes other than secondary activities, and still intend to use other well-known detectors for primary prospecting activities because of their other advantages. No doubt others with QED's will disagree with us. We welcome this, and would be happy to be proved wrong. Ultimately, time tells the truth by substantial gold finds or lack thereof in well-worked ground. *Note: because of the subtle audio, it is easy to imagine you are “hearing” a target above the general background ground noise when you know where it is. We endeavoured to avoid this tendency.
  5. Titan Ger 400 ???

    Hello everybody, I am interested in buying a TITAN GER 400 for a sandy desert with stones area, Does anyone has one or has ever used one ? Please any advice or recommandation is most welcom, Gyo
  6. QED Field Test Report

    "Righto, this is based on my last 4 or 5 trips combined. Today was the 2nd time I've been able have 2 QED,s on the ground as well as a GPX 4500 and a souped up GP 3000 to compare." https://www.prospectingaustralia.com.au/forum/viewtopic.php?pid=341762#p341762 https://www.prospectingaustralia.com.au/forum/viewtopic.php?pid=341951#p341951 QED Thread On This Forum
  7. Hie Steve; Thanks for the discussion about the GPZ 7000 and other gold detectors. I am attracted to a machine that I have never used: the GER Easyway 3D Detector. Do you have experience using this one? What is your comment about it?
  8. Yes, it's Steve!!!!!!!!!!!! https://web.archive.org/web/20130508060926/http:/www.troycustomdetectors.com:80/reviews/x5-herschbach-review.html
  9. I admit to have wondered about these little hand held detectors / pinpointers. The main thing being do they really deliver significant depth advantages over standard pinpointers? These are only air tests but at least you get an idea. Nice depth chart at the end of the video you can screen capture.
  10. PhaseTech and other GS users, notice you listed a Gold Striker in detector used thread, I preferred the GS over the 17000 on shallow ground but a lot were disappointed with it. Just wondering if it had some special "tweaks" in its electronics? Something a bit diff. other then was a single frequency.
  11. Just tested the Exper with these three metals. Although the Exper does not fair well with smaller gold, it does have potential for certain applications for larger gold (1/2 oz +). Watch this video and believe...
  12. People have asked, since on all the demo video posted on Youtube that there a delayed reaction giving the impression the sweep speed for the Exper needs to be slow. Any deep seeking machine should go slow for deep targets, however in this 1 minute video you can see form yourself what the Exper can do.
  13. Looks like whites xventure kids detector is being sold on ebay. Neat idea for christmas for children and grandkids to start to learn to hunt with. http://www.ebay.com/itm/White-s-XVenture-Kid-s-Metal-Detector-800-0348/142271187819?
  14. Anybody seen the latest in metal detectors from DRS Electronics, their new Ground expert machine is just awesome. If it can do what they claim it can it might be a real game changer for metal detecting.
  15. I thought I would take a few minutes here and talk about the Signum MFT detector. My unit seems to have (looking at screen at turn on) the original version software. I have used the detector with the stock supplied coil,,it measures approx 11.5" in diameter. This coil is deep,,7khz freq, but due to size it can be cumbersome to use in places. Using the stock coil,,,bumping it will cause some falsing at times,,,running gain at 6,, sensitivity at 11. It in my soil is for a metered Vlf detector,,just maybe be my deepest on a clad US dime. The ground balance while using this detector,,very critical to get good to serious depth. Not hard to ground balance as long as you have some clean ground-- this can be a pain btw sometimes. It seems in my ground here,,,using turbo is really not effective,,,like a lot of other units with boost. But even saying this,,this detector features an economy power transmit setting as well as economy off setting. This economy off setting here combined with a sensitivy level of around 11,, gets down in the ground. This detector IMO,,sweep speed wise not overly forgiving,,at least with stock coil. This detector does possess a feature where the recovery speed can be increased,,called mm mode. Since I have been putting in most of my time with the Nokta Impact detector,,I do need more time with this detector. I happened to see a gent who was selling a smaller the stock coil (6x10") Mars coil,,so I bought. In case some folks here don't know,,,the coils used on AKA Sorex detector are interchangeable here with Signum detectors. Well today I took this new to me coil to a site,,to try. I was very impressed with this coil,,,as long as I was in mm mode. It seemed if I was running in normal mode,,,the detector couldn't keep up with the ground,,and even some of the iron and targets. I need to operate some more,,,I could be jumping the gun here by criticizing it. This detector and coil combo(my new to me coil) feels real nice,,balance and weight. This coil being 14khz,,,it nails higher conductors big time,,,some coins rather deep using this coil,,a user might think they were only a couple inches deep. The audio this detector possesses,,,is second to none in my book. One detector with such great audio,,,a user will not be overwhelmed even when running all metal in a super duper bad site with iron and nails. I did even today try and dig a few lower conductors,,that had a straight line on the holograph display. Even some of the lower conductors that had just a tinge of a loop in their graph reading. And sure enough these kinds of targets were low conductors but not worthy at all,,,edges irregular, inconsistent thickness, etc. I certainly would recommend the detector to a person,,,but with a 10" coil or smaller. Not a hard detector to operate either,,,sets up a lot like a White's V3i as far as the all metal side,,and the disc side of the houses (sensitivity wise). The pinpoint on this detector,,and I have owned a Sorex as well,,,both have the hottest pinpoint functions I have ever seen. Luckily they are adjustable so it can be turned down sensitivity wise. Similar ID screens are used I think with Xp Deus (secret screen, version 3.2) and White's Vx3 and V3i models. The Signum will give high tone on iron false,,,a user if they will watch screen will start to see a pattern to recognize iron falses. The tones are adjustable,,I haven't adjusted mine. This detector also has a way to check for bottlecaps,,has helped me. I even used this same feature today to weed out a bigger piece of cast iron. If a person here gets a chance to be around either a Sorex or one of the Signum models,,at least try to listen to the audio they possess. I am posting this info here as strictly a user of detector.
  16. Good day did any of you on the otherside of the pond did try a Vista gold on gold nuggets?????25kgz I had a bit of success with it ,then I send it to be tested on hillfort (pounded spots..) RR
  17. Buried in the announcement of the new Minelab Gold Monster 1000 is the fact that it effectively replaces the Eureka Gold. From http://www.minelab.com/usa/customer-care/product-notices?article=305152 09 Feb 2017 Discontinued Product – Eureka Gold After almost 20 years of gold success, the Eureka Gold detector has been discontinued. As with any product discontinuation, Minelab will continue to provide technical support service. You can find archived product information on the Eureka Gold here. If you have any questions, please contact your regional Minelab office. And from http://www.minelab.com/usa/customer-care/product-notices/discontinued-products Discontinued Products As new technology is developed and improves upon the performance of our current product range, Minelab discontinues our older product models. These products are listed on this page alphabetical order for your reference. We aim to service and support all of our older products for as long as possible. All products are supported for a period of at least 7 years after they are discontinued. Unfortunately with some of these older detectors it becomes impossible to source the parts required for service work and so the detectors eventually become uneconomical to repair.
  18. Interesting - a dedicated gold machine by XP incorporating the new high frequency coil and marketed in Africa at a very low price, only $680 http://www.depardetector.com/product/depar/dpr-600/912/511 It certainly raises some questions. The first being, will we be able to buy this machine from XP dealers, or is it some sort of special deal for Depar? Personally I would be irritated by that were it to prove to be the case. I think many people here would rather buy this machine at a far lower price than buying a full blown DEUS and then having to pay even more to get the high frequency coil as an accessory. The video gives an idea how the high frequency coils may act. A big shocker for me - the elliptical version of the coil is said to operate at 20, 40, and 80 kHz! (See video). Is this what we will see in the high frequency elliptical for the DEUS? The round HF coil is said to operate at 15, 30, and 60 (56) kHz which is in line with what has been previously advertised. Depar DPR 600 Owner's Manual
  19. Finally - The QED Arrives?

    AussieMatt pointed out on another thread that lo and behold, the QED has appeared. I am not going to mess with all the long back history. Instead, it looks like we may finally have a new detector model from an independent designer after so many false starts over the years. If nothing happens to upset the cart reports should be coming in from Australia in the near future. Anyway, congrats to bugwhiskers and company. I truly do wish for it to go well for all involved.
  20. I wonder how it would do on Florida beaches? Very light weight, super hot on small stuff, can use Minelab compatible coils.
  21. What about this Steve? http://www.vallon.de/
  22. I came across this website, and their youtube video. They state the Pulse Induction detector discriminates even lead and aluminum, and it also shows an image. Anyone seen these? Dave
  23. Here is a 4 –18 khz variable frequency VLF metal detector that may find a niche in the States: the Rutus Alter 71. Ziggy Jinx Detector Testing (Facebook: Ziggy Jinx Metal Detecting) is currently testing the Rutus Alter 71 in the UK. MD-Hunter also has a write up (Rutus Alter 71 test. New 2016) which includes several non-translated videos. The Alter 71 was apparently released in the autumn of 2016 but apparently is not yet available in the US. I am not familiar with either the Rutus MD’s or of any US dealers. Non-verified & non-translated video(s) indicate the box may include both 11” DD and 9” concentric coils, control box and housing covers and a 6 cell AA battery pack similar to the Garrett AT series. Battery life is approximately 20 to 50 hours depending on the frequency settings; estimated price US $725 plus; the menu appears to allow you to toggle over to English. The battery door upper insert tabs may eventually break off with use. Ziggy Metal Detecting posted the following on another forum: November 16, 2016 The New Rutus Alter 71 [ Website here to show some pictureswww.rutus.com.pl] …“Some Information here on the Alter 71 I've gathered below. At the turn of October and November will release a new detector. The name "Alter 71" - from the Latin "other" and the number 71 represents the number of available frequencies. Alter 71 is probably the world's first metal detector continuously tunable as a function of frequency. The detector is tunable from 4.4 kHz to 18.4 kHz increments of 0.2 kHz - without the need to replace the probe. I know of no current market detector is not possible. The detector is equipped with a radio transmitter digital data allowing such cooperation. With handsets or "wireless headphone jack." Digital transmission has been specially designed for this purpose - does not introduce any delays. 6 hours of battery life "toes" depends on the frequency and ranges from 20 to 50 hours. The detector has the ability to work in a static mode, dynamic or so. mix - the dynamics of the "mixa" can go smoothly depending on the needs. Graphic display, ID - 120 points, discrimination classical and selective, chart depending on the phase of the signal, automatically tuning to the ground speed control filters ground in a very wide range, the possibility of programming your own sounds, ranges, speed, separation and many other features make the it is a detector at the world level. The detector has a completely new mechanical design and is lighter than our existing detectors over 200 g. For the detector probe will be available both DD and concentric. Regulatory elements: Discrimination tenderness Dyskrymincja selective 120 points Operating frequency of 4.4 kHz to 18.4 kHz jump 0.2 magnetic stones Response filters (groundwater) - 8 speeds to choose from Masking 7 levels The signal level leading Ton leading signal Sensitivity leading signal - regulation allowing for a smooth transition from pure dynamic work to "mix-a" Strengthening Audio - regulation allows to change the sound characteristics of a dynamic channel and switch it off completely (we obtain in this way the work of a purely static) Volume Tony - three sound profiles to search for coins, three to "relics, and three freely programmable by the user Wireless nature - off, Channel 1, Channel 2 Backlight - 29 adjustable levels Type of ID - true (depending on frequency), converted to 6kHz, converted to 12 kHz Hold time - adjustable display time information about an object on the LCD. Detector has 7 default programs: a deep, deep, large silver, basic, coins, fast, very fast. Factory programs offer a fairly wide cross-section of the possibility of the detector in search of various objects in different conditions. Each factory program can be modified to suit your needs - and the changes are saved when the power is turned off. In case the modifications do not meet user expectations - it is possible to reset each program to factory settings.” The Alter 71 target may be only coin and relic hunting. Provided the MD does not demonstrate a frequency preference, the higher frequencies up to 18.4khz puts this MD tin he small nugget range on ground within the VLF limits. Perhaps this will excite future development of a variable frequency MD with fixed steps with a 3kHz to 48khz range. Shelton recently posted that he is also testing the Rutus Alter 71 and provided the following link: http://www.rutus.com.pl/page/19/alter-71. Hopefully, he will provide future updates on his testing & review. For now I'm hanging on to the MLX705; other than wait and see; any thoughts on variable frequency VLF MD’s for coin, relics and nuggets?
  24. Fisher Goldstrike

    Hi steve and members, can the coils from the gold bug series be used on the go ldstrike, thanks all for your imput. lennie-downunder.
  25. Is there any usable difference with the Teknetics G2+ when used for nugget hunting?
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