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The White's MXT was released in 2002 and had a great run, but is no longer in production due to the demise of White's Electronics in 2021. I helped popularize the use of this detector for searching tailing piles for large gold nuggets. Hundreds of ounces of gold have been found at Ganes Creek, Alaska alone by people using the White's MXT. My own largest gold find, a 6.85 ounce specimen, was with the MXT at Ganes Creek. I have a couple stories on Steve's Mining Journal that highlight the MXT. See Infinium & MXT at Ganes Creek and GP 3000 & MXT Get Fortymile Gold. My most recent find of note with the MXT Pro was a 267 AD Roman coin found while on a trip to the UK in 2010. See Metal Detecting Ancient Coins at Colchester, UK The MXT is extremely popular because it does almost everything very well; coin, relic, jewelry, and nugget detecting. Despite being so versatile the MXT is also a bargain priced detector with performance rivaling much more expensive detectors. It is remarkably easy to operate, with a condensed operating guide actually printed on the bottom of the control box. Three knobs and three switches are all the controls you need. The controls have specially marked settings so that if you do not know what the controls do, just set everything at the little triangle marker and you are off and running. A major feature on the MXT is the LCD screen that gives you visual information about the items detected as well as battery readings. White's employs a numeric target identification system that runs from -95 to +95, with ferrous targets reading as negative numbers and non-ferrous targets reading as positive numbers. White's calls these "Visual Discrimination Indicator" numbers usually referred to as VDI numbers. The MXT also comes with one of the best manuals and DVDs of operating tips that I have ever seen come with any detector. The MXT is almost perfectly balanced due to the control box being slung back under the elbow. One simple thing about the MXT also pleases me - it does not fall over on its side like nearly all the other detectors I use when I set them down! The control box is very water resistant. I have used the MXT in the rain all day long with no adverse effects. White's MXT All Pro metal detector for coins, jewelry, relics, and gold nuggets There have been several MXT models. There is the original MXT which comes with a 9.5" round concentric "950" coil. This version of the MXT was discontinued in 2017 and is essentially the same detector as originally released in 2002. The was also an MXT 300, also no longer in production, which was the same detector with a 300 mm (12") search coil and a matte black paint job for $100.00 more. The MXT 300 was replaced by the MXT Pro for the same $899.95 price. The MXT Pro added multi-tones and a meter backlight plus a redesigned pod with a touch pad. The new features do not really add anything needed from a nugget detecting perspective but are popular with coin and jewelry hunters. There is a "Ground Grab" that is nice for nugget detecting but just for convenience. Instead of switching to ground tracking for a minute and back to fixed it is possible to just remain in fixed and hit the grab button to update the ground balance setting. A very good way to compare the MXT and the MXT Pro is to download and read both operating manuals linked to below. You can also find a quick comparison reference chart at Jeff Foster's website here. The target reference in the MXT display above is replaced by three touch pads on the MXT All Pro. An audio pad controls various audio options, the "Ground Grab" button resets the ground balance, and there is a pad to toggle the display backlight on and off. MXT vs MXT All Pro display pod showing new touch pad buttons The MXT came with the 9.5" round concentric coil and the MXT All Pro is offered with either the 9.5" concentric coil or 10" round DD coil. My personal preference is for the MXT All Pro as I do like tone id for general detecting and the Ground Grab button alone is worth the extra money as far as I am concerned. I prefer to leave automatic ground tracking off most of the time and update via the grab function. The ground grab button alone is enough to make me prefer the MXT All Pro for gold prospecting. It is also a little known fact that the MXT was designed to work best with DD coils. Here is a post by Dave Johnson (one of the engineers of the MXT) on the TreasureNet forums 2/3/2013: "Back in the late 1990's and very early 20th century, the MXT was developed around the 10x6 elliptical DD. When you're used to that searchcoil, stick a 950 on and the 950 feels downright clumsy with its muddy response and bad masking characteristics. Downright insufferable. The 950 searchcoil geometry was designed for completely different platforms. But, if you ask "does the 950 work?", well, yeah, it does. Wrong question. I ain't gonna knock the MXT, it may be an old platform but it still works good. More than 10 years after, if you demand "ground tracking" (not that I say you should demand that), the GMT/MXT have the best in the industry. Not even Minelab (!) denies that! And as far as I know, the MXT/GMT are the only VLF-IB machines on the market with active transmitter regulation that makes it possible to work (with reduced performance) in heavy magnetite black sand, a circumstance otherwise left up to PI's. We're talking very good machines here. They may be a bit old in the tooth, but this is an industry that takes time to weed the turnips out of the beet patch. Ain't like celfonz where in 6 months the whole world has decided what kyckes and what szux. It takes time to deliver good beep verdict. MXT. 10x6DD is the foundation. Everything else is an accessory. I am telling you this because if you are a White's loyalist, I want you to spend that extra buck, the folks in Sweet Home are my friends!" Having noted that commentary, many users prefer the concentric coil options for beach use or low mineral parks where bottle caps are common. Concentric coils generally identify flat ferrous targets more reliably than DD coils. The large 12" concentric coil and even the 9.5" concentric coil do not handle extreme ground mineralization very well, and the 12" is too large for many other tasks, like coin detecting trashy locations. The 6" x 10" Eclipse DD coil is possibly the best all around prospecting coil for the MXT for those that do not already have the 10" round DD coil and want to add a DD to the MXT. The solid construction is less likely to hand up on stubble and the narrow profile is good for getting into tight locations. However, if you have an All Pro and already have the 10" round DD coil it is a less useful upgrade. In that case I would tend to recommend the 4" x 6" Shooter DD coil for trashy locations and small gold nuggets. To sum up, I recommend using either the 10" round or 6" x 10" elliptical DD coils for hunting heavily mineralized ground. To get the best performance on small gold, use the 4" x 6" elliptical DD (Shooter) search coil. The 9.5" concentric 950 coil and 12" concentric are best used for hunting tailing piles, beach detecting, or coin detecting in parks. The little 6" round concentric (Eclipse 5.3) is a good little coil for almost any use, including gold prospecting for small nuggets in low mineral ground. The MXT is blessed with a large number of aftermarket coil options due to its popularity. There are so many in fact it is impossible to keep up with them so I will leave that for the reader to discover via Google. White's MXT DD search coil options White's MXT concentric search coil options The MXT Pro does have an undocumented feature it is worth knowing about. The MXT in Coin & Jewelry Mode has a "Pull Tab Notch" feature when the trigger switch is locked forward. Meter readings of VDI +28 to +49 are silenced, knocking out common pull tab responses while still allowing US nickels to signal. The MXT Pro eliminated this function (trigger switch forward locks the pinpoint mode) and instead added the seven tone audio identification used by the White's M6 detector. The intent was to have the option for different tones for preset VDI ranges while in the Coin & Jewelry Mode. The multi-tone feature was not intended for the Relic or Prospecting Modes. However, through a bug that is not documented in the owner's manual you can activate the multi-tone mode by getting your MXT all set up in Coin & Jewelry Mode and then selecting multi-tone by pressing the "Musical Note" button. Now flip the toggle switch to either Relic Mode or Prospecting Mode and the multi-tone function will remain engaged. However, if you touch any of the control pads at any time now the multi-tone function will shut off. White's decided this "bug" might actually be useful so has left it as is for you to experiment with. There is a book written about the MXT that has no equal - The MXT Edge by Jeff Foster. If you have an MXT do not hesitate to get a copy. An interesting note is that the White's GMT and the MXT share a common heritage - see the MXT Engineering report below. Official White's MXT Page White's MXT 950 Owner's Manual White's MXT 300 Owner's Manual White's MXT Pro Owner's Manual Forum Threads Tagged "whites mxt" White's Metal Detectors Forum Unofficial MXT User Support Page MXT Engineering Guide Steve's Guide to White's Electronics GMT versus MXT White's MXT Technical Specifications* Internet Price MXT All Pro $823.00 Technology Induction Balance (IB) Frequency 13.889 kHz Autotune Mode(s) Variable Self Adjusting Threshold (V/SAT) Ground Rejection Tracking and Fixed Soil Adjust (Ground/Lock/Salt) Three position switch Discrimination One turn control, Visual ID, Tone ID Volume Control No Threshold Control One turn control Tone Adjust No Audio Boost No Frequency Offset No Pinpoint Mode Yes Audio Output 1/4" headphone socket & speaker Hip Mount Shaft Mount Only Standard Coil(s) 12" round DD Optional Search Coils Over 15 accessory coils available Battery Eight AA Operating Time 30 - 40 hours Weight 4.3 pounds Additional Technology Notes Alaska's most successful gold nugget detector for tailing piles *Notes on Technical Specifications - Detailed notes about the specifications listed in this chart. Here are a few nugget detecting tips for the MXT. I highly recommend that if you are new to detecting you seek out a sandy location like a freshwater beach or volleyball court or the woodchip area around playground equipment to practice and learn your new MXT. The goal is to set up the detector as if you are nugget detecting and to dig everything that signals. It does not matter what it is, the goal is to learn. You should be trying to find the smallest items possible, and attempting to learn how to separate ferrous from non-ferrous signals. It is always best to dig all targets when nugget detecting, but some areas are so full of ferrous trash that it is something that must be tuned out to some degree. Aluminum is a very common find, and that is good. Aluminum and gold respond identically on a metal detector, and the smaller and/or deeper the aluminum is, the better your detecting skills. Concentrate on the faintest signals. Hours spent practicing like this will save many more hours wasted time and frustration in the field. Normally when looking for gold it only makes sense to use the MXT Prospecting Mode. This pretty much turns the MXT into a GMT although a bit less sensitive to very small gold. Start with the Gain at the preset (small triangle) setting. The Threshold should be set as low as it can go while still being audible. You want to be able to hear variations in the threshold sound but you do not want it so loud as to be annoying when listening to it for hours on end. Set the Trac switch to "Ground" and pump the coil over the ground until the sound caused by this pumping action dissipates. the MXT is now ground balanced, so flip the switch to the "Lock" position. This locks in the current ground balance setting. The "Dual Control" while in Prospecting Mode is not acting as a discrimination control. The inner "SAT" section becomes active and a good starting place is the small preset triangle at the "5" setting. SAT stands for self-adjusting threshold. The threshold sound constantly varies and this circuit smooth's the threshold response. The higher the setting, the more aggressive the smoothing effect. Low settings are more sensitive to faint responses but can allow ground variations to also become to evident. Settings that are too high eliminate faint ground responses but can also cause faint signals from gold to become to faint to hear. In general less mineralized ground calls for lowest SAT settings and higher mineralization call for higher SAT settings. ads by Amazon... The Gain when increased does make the detector more sensitive to gold but also more sensitive to ground feedback and so-called hot rocks. The trick is to run the Gain as high as possible while retaining stable operation. Finally, in low mineral ground a locked Trac setting works best, but in ground that varies constantly running the MXT in the Ground tracking mode will result in smoother operation. Novice may want to stay in Ground Trac mode while learning the machine as it is the safe setting that keeps the machine properly ground balanced. In theory the MXT is most sensitive with the SAT set low, the Gain maxed out, and the Trac setting locked. The reality is that increased Gain settings may also call for increased SAT settings. The goal is to seek the most sensitive balance of settings possible while while keeping the MXT stable and smooth. A small test nugget of small piece of lead can be essential for determining what setting most eliminates ground responses while most enhancing nugget responses. In general leave the SAT control at the preset, Trac in locked, and set the Gain as high as you can while still getting stable operation. If need be, switch the Trac setting to ground for smoother operation. In the worst mineralization advancing the SAT control into the Hyper SAT mode will put the MXT into a very smooth mode able to deal with extreme mineralization while still reporting small gold nuggets. Remember, the key is to seek a smooth, stable threshold sound. It is this stable sound, when it varies, that indicates very deep or very small targets. There are a very few detectors that can be run in what is referred to as "mixed mode". These units have the ability to run in all metal and discriminate at the same time. I am not sure who first came up with this feature but Nautilus has for a long time offered units that put the all metal signal in one ear of your headphones and the disc signal in the other ear. The advantage to this is that pure all metal modes detect deeper than discrimination modes. Hunting in regular all metal requires lots of switching back and forth to check targets. Mixed mode gives you both at once. The White's MXT has the Relic Mode, which is a mixed mode. I wonder how many people use relic mode but really do not understand it. Good targets give a high pitched chirp. Junk targets honk. The split between high chirp and low honk is determined by the setting of the discrimination knob. This should be set to just cause iron and steel items , like a small nail, to honk, generally at a setting of 2 or less. Do not set the discrimination too high! Now here is the important part - there is a third, more subtle audio signal that indicates a target is there but the detector cannot identify it because it is too deep. This is the all metal signal. The meter will be blank. When nugget detecting, you want to hear these, and dig down until the target identification kicks in. I think many people focus so much on the other two audio responses that they ignore the fainter deep all metal signal. It is easy to fall into a habit of just digging only those high pitch targets. Not good. The key to mixed mode is simple. Those targets in a good location that are so deep you get no indication on the discrimination channel are the ones you really want to think about. If the area has produced good finds but is now near to being worked out, these deep signals are the ones anyone running in a normal discrimination mode is going to totally miss. Sure, it could be trash. But really deep targets are often the best, and so digging some of these on occasion can produce some really good finds. Steve with MXT and 6.85 ounce gold specimen found with it at Ganes Creek, Alaska in 2002 Unlike most dedicated nugget detectors it has a LCD based visual discrimination indicator (VDI) system. This is for the MXT coin and relic modes in particular. It turns out that for certain nugget detecting tasks the MXT has extra capabilities due to the visual target identification system. Alaska has huge areas of old mining tailings that provide great opportunities for nugget detecting. The nature of the old operations was such that many of the very largest nuggets were lost into the tailing piles. Unfortunately there is a huge catch. Some of these tailing piles contain incredible amounts of iron junk, and at any depth. Some creeks were mined many times, and old campsites and dumps were churned up and mixed in with the tailings. This junk can be anything from rusted flakes and slivers of steel on up to cans, bolts, washers and nuts, and finally even 55 gallon drums, and various large steel plates, pipes, boilers, or even larger items. Ganes Creek, Alaska is possibly the best known of these locations. New visitors from areas in the western US where the Minelab SD/GP/GPX detectors have reigned supreme have a hard time adjusting to the concept that there is such a thing as too much power when coupled to a poor discrimination system. If you run a Minelab at Ganes Creek here is a likely scenario. You are in a field of fist-sized and larger cobbles. You get a nice little signal and no iron blanking. You start to dig, as best you can in a pile of rocks. After a great deal of effort you are at two feet, signal is louder, but no target. You pull out another cobble and half the hole falls in. You pull all those rocks out, and get another six inches down. Forty-five minutes has passed. You pull out another rock and the hole caves in again. Fifteen minutes later you are at 3 feet again and really tired. Over an hour has passed since you started this hole. The signal is very loud now...too loud really. You dig down a bit more, then some more, and the whole thing caves in again. You walk away in disgust. Or you keep digging and finally find an old quart-sized can. How deep can you hit a large can with a Minelab GP 3000? How about a 2'x 2' steel plate? How about a 55 gallon drum? There answer is very deep indeed, and they are all there waiting! Normally you would just figure it is junk past a certain depth, but the big question always must be how deep could you hit the 35 oz or 80 oz pieces found at Ganes Creek with metal detectors, or the 122 oz chunk found by the commercial miners at Ganes? Because of this huge junk problem VLF detectors have generally been the way to go at Ganes. The low mineral conditions mean they keep you from wasting huge amounts of time going after junk targets. Most any good VLF machine works well for this, but the MXT gives you some extra capability once you learn its tricks. There are four things to know. 1. VDI numbers increase as the nugget size increases. So a 1/4 oz nugget may read around 25 whereas a 1 oz nugget may read around 40 and a 2 oz nugget may read around 50 on the meter. 2. The larger a nugget, the deeper you can detect it. 3. Certain steel items can give positive VDI numbers and 4. VDI numbers are pulled down the deeper the nugget is buried. A 1/4 oz nugget near the surface will read 25, but at depth might read 10, and at max depth may finally read at 0 or lower and actually be identified as iron. This last point is very important, for if you run a Fisher Gold Bug 2, or Tesoro Lobo, or Troy X5 in disc mode to tune out iron, as is common for many people at Ganes Creek, deep nuggets may read as iron. If they are, the machines will reject them; you will get no signal, and walk past the nugget. You will never know it is there. Or at best you have to search in all metal mode, then constantly switch to the discriminate mode to check the target. With the MXT, there is no switching and you hunt completely by ear. With the MXT I like to run the detector in relic mode, with the disc set precisely at 2. Non-ferrous items will give a high tone, and ferrous junk a low tone. If you get a faint low tone, the first thing you do is kick and inch or two off the surface until you get a honk or a chirp. Now dig a little deeper. If the VDI number rises, keep digging. Targets that read iron initially and rise will often turn into non-ferrous readings, hopefully gold. If the VDI number stays the same or goes even lower, you have an iron target. Once again, be careful to listen for audio signals that give no reading on the meter - these are items being detected by the all metal channel at depths beyond what will cause the meter to react with a numeric id. Where the MXT really shines are on 1/4 oz to 1/2 oz nuggets. Let’s say you get a reading of 24. OK, that is about a 1/4 oz nugget. Now, we know that you can hit a nugget this size at 10-12 inches. You dig a foot, and no nugget. A large, deep iron item of a certain type can also give a 24 reading, but these large items can be detected much deeper than a 1/4 oz nugget. Dig them up if you wish, but once you go past that depth at which it is reasonable to find a nugget corresponding to a certain VDI number you are wasting your time. This method eliminates digging those false positive signals from deep items like steel plates. With the other VLF units the lack of VDI number means you have no way to judge the potential nugget size and so you end up digging deep for what may be a very large nugget when with a MXT you would know the VDI number corresponds to a smaller nugget. For the many smaller nuggets that are found at Ganes this method is pretty foolproof once you get the hang of it. Finally, certain non-ferrous items can be found in quantity, particularly things like .22 shell casings. If you get into a bunch of these, they are usually very shallow. You can easily determine the VDI number of these multiple identical targets and then simply ignore them. You would miss a nugget with an identical VDI reading, but chances are a nugget will vary enough to make it stand out. There is no way to do this with a non-VDI unit. The MXT is a very versatile detector, but I do not think anyone anticipated just how much gold it would end up finding in Alaska. I know one prospector alone who has found over 100 ounces of gold with the MXT. ~ Steve Herschbach Copyright © 2004 Herschbach Enterprises

The White's GMT was released in 2000 and is still in production. The GMT has been the best-selling dedicated nugget detector in Alaska for many years. The combination of small gold finding ability, excellent depth on larger gold, and ease of use at a bargain price make it a hard unit to beat. I have used the GMT and its predecessor Goldmaster models to find thousands of gold nuggets in Alaska. See Thirty Years with White's Metal Detectors, White's Goldmaster GMT Rebuild and First Gold Nuggets Found with White's GMT for more information on my use of the GMT. See also Steve's Guide to White's Electronics GMT versus MXT. The GMT is one of only a few detectors available operating at more than 40 kHz (the GMT runs at 48 kHz), making it exceptionally sensitive to small gold nuggets. The GMT is the latest in the new Goldmaster line of detectors that White's introduced in the early 1990's. The Goldmaster name is an old one, and White's produced many old BFO and IB/TR versions of the Goldmaster in the 60's and 70's. The early Goldmasters were old technology and did not ground balance, a key breakthrough in detector technology. These old models usually had large blue control boxes. If you see one of these for sale cheap do not confuse them with newer Goldmasters, all of which come in black boxes. Note that in late 2018 White's introduced the 48 khz Goldmaster 24K. The GMT also remains in the lineup for now, but it is possible that the 24K will eventually replace the GMT. The Goldmaster II was a serious breakthrough detector when it was introduced, operating at 50 kHz, far in excess of other ground balancing nugget detectors at the time, which commonly ran at 15-20 kHz. The Goldmaster II was quickly followed by the Goldmaster V/SAT, and these two models I credit with igniting a metal detector "gold rush" in Alaska. I got the ball rolling by finding thousands of gold nuggets at Crow Creek Mine south of Anchorage, and widely publicizing my discoveries. Crow Creek had produced few nuggets with detectors prior to the Goldmaster release, but the new 50 kHz design crossed a threshold where all of the sudden thousands of nuggets were large enough to be detected that were too small for previous detectors. White's simply could not build the new Goldmasters fast enough. The Goldmaster V/SAT was followed by the Goldmaster 3 and raised the price from $499.95 to $599.95. White's then shifted gears and with the Goldmaster 4/B switched to using the control box design used by its coin machines. They also raised the price again to $699.95. This was not well received, and when Fisher introduced the Gold Bug 2 at about the same time for $775.00 Goldmaster sales plummeted. White's GMT 48 kHz gold nugget prospecting detector The Goldmasters were all analog designs but a shift to digital began with the Goldmaster 4/B. White's started a project for a brand new detector design by hiring Dave Johnson, a well known engineer specializing in gold nugget designs, the ended up as the White's MXT. The GMT was as early spinoff of that project released a couple years before the MXT hit the market. The MXT Engineering guide linked to below tells the story in detail. A key design goal was to have automatic ground tracking, and so the Gold Master Tracker (GMT) was born. The new model also sported a new retail price of $799.95. The GMT is a totally new design from the prior Goldmasters but seems very similar due to the goal of wanting it to be compatible with existing Goldmaster coils. In order to prevent "crosstalk" interference with existing Goldmaster models a 48 kHz operating frequency was chosen, which was still close enough to 50 kHz for old coils to work. However, the GMT was designed with DD coils in mind. Older Goldmasters all used concentric coils but the GMT shipped with a new 6" x 10" elliptical DD coil. One thing all the Goldmasters seriously lacked was a small coil option, and finally after the GMT was released White's came out with a small 4" x 6" coil, commonly referred to as the "Shooter". Much later yet, the concentric 8" x 14" Jimmy Sierra Gold Max coils were converted from concentric to DD. The concentric 8" x 14" coils were white and the newer DD versions are black. White's is currently shipping only the new DD 4" x 6" Shooter, 6" x 10", and 8" x 14" Gold Max coils but until recently the only concentric coils available were the 6" x 10" and 8" x 14" coils on the used marketplace. White's in 2017 introduced a new round concentric coil for the GMT. The old concentric Gold Max coils are easy to identify - they have a white plastic housing whereas the new DD version is black. Concentric 6" x 10" coils are white plastic just like the new DD version, what differs is the decal. Any 6" x 10" Goldmaster coil not sporting the "Twin D" label is a concentric. The early decals came in red and black and later gold and variously were called the Long Scan, Gold Master II, Gold Master, and GM 3 coil. Beware of any round coils marked for use for the Goldmaster series. The only round coil ever produced that is compatible with the newer Goldmaster series is the 12" round Hot Shot coil pictured below. Any other round coils would be for the old "blue box" Goldmasters and will not work on the 48-50 kHz series. 4"x6" Shooter DD coil, 6" round concentric, stock 6" x 10" DD coil for GMT, and 8" x 14" Sierra Gold Max DD coil Old version 6" x 10" concentric and 8" x 14" concentric coils The GMT currently has no aftermarket coils available. Jimmy Sierra used to market a couple coils that may be found on the used market. The Hot Shot was a round 12" concentric coil that in mild ground may have been the deepest coil made for the GMT but it suffered in mineralized ground due to the concentric design. Jimmy Sierra also marketed the 2.5" x 9" Hot Foot coil, a unique rectangular DD design. These coils were made by Jim Karbowski of Applied Creativity and marketed by Jimmy Sierra. Unfortunately Jim has passed away in 2007 and the manufacture of his coils with him. Applied Creativity Hot Shot and Hot Foot coils for GMT As always, when designs shift from analog based to digital, there are always some who regard the analog designs as better in some way. A lot of people nostalgically remember the Goldmaster 3 as the best Goldmaster made. I do myself miss the old control box that could be converted to a hip or chest mount. However, the benefits of the GMT far outweigh any perceived faults. It was for a long time the only VLF nugget detector that allowed the operator to choose between automatic ground tracking and manual ground balance. The "Grab" button was an innovation only now being seen in other detector models over ten years later. The "follow the black sand" feature was also a unique though underutilized feature. The innovative "iron probability" ferrous identification system was unique for many years but has recently been copied by a couple other manufacturers. GMT meter pod and typical meter readings The ground balancing options on the GMT are as good as they get. The unit can automatically track ground conditions and keep the machine as near optimum settings as possible. The GMT has what is regarded as one of the best ground tracking systems available. It has superior resolution, tracks faster, "jumps" into new ground more quickly, has greater resistance to tracking into targets, and tracks over a wider range of soil conditions. This is an obvious advantage for beginners who often have difficulty with manual ground balancing systems. It also benefits experts in locations where the ground varies constantly. This requires constant monitoring and adjustment on a manual system. It can place an undue burden on the operator and if ignored leads to the detector not being optimally tuned for the ground conditions. Simply set the ground balance toggle switch to "Fast AutoTrac®" and let the GMT handle the ground balancing chores. The GMT will automatically track and display the ground balance setting under the "Ground Balance (Mineral Type)" heading on the meter. Ground balance tracking systems can "track into" a faint signal produced by a very small or very deep gold nugget and cause it to fade out as if it is a ground signal. This is especially likely if the operator hovers over the target after it is heard on the initial pass. For this reason the GMT trigger switch has a dual function. It engages the iron discrimination system but more importantly it temporarily locks out the ground tracking system. Whenever a faint target is encountered, squeeze and hold the trigger switch while working the target to insure the tracking system does not cause it to fade away. While automatic ground tracking offers many benefits it can impede finding the very faintest targets. In extreme ground conditions the fact that the machine is constantly adjusting for ground conditions can actually impede a savvy operators ability to discern ground and target signals. Professional operators like having the option of using manual ground balance and the GMT accommodates this is a couple ways. There is the standard ability to toggle the ground balance switch to manual ground balance and then adjust the setting up or down via the plus and minus touch pads. One major benefit of manual ground balance is the ability to purposefully set the ground balance slightly off of the supposed perfect neutral ground balance setting. Many prospectors will set the ground balance slightly positive, or in other words such that the detector signals very slightly when the coil approaches the ground. This tends to prime the system to react more quickly to the faintest targets. The GMT goes one step farther with the introduction of the ground "Grab" button. This unique GMT feature was long overlooked but is now being added as a feature on many other detectors. While in manual ground balance mode the tracking system continues to work in the background. Simply touching the Grab button on the meter touchpad instantly updates the ground balance to what the tracking software thinks is the best setting at that point in time. Pressing and holding the button engages the tracking system momentarily. This offers the best of both worlds in that a prospector can hunt in manual ground balance yet take advantage of the software to instantly update the setting instead of manipulating the plus and minus pads. The Grab button acts like an instant "Coarse Tune" control, which can then be tweaked slightly with the manual touch pad if desired. This is how I prefer to run my GMT most of the time. Run in manual, update with Grab when needed, and tweak if desired. ads by Amazon... The ferrous discrimination on the GMT is far more nuanced than on most detectors, with the meter giving an "iron probability" reading. A LCD bar graph reading starts on the left and builds to the right hand side of the readout and indicates the relative probability that the target is ferrous. A real plus on this system is it always reminds the operator that the ferrous indication is never 100% - there is always a chance that ferrous reading is a gold nugget. The system will never give a reading of higher than 90% or less than 10% ferrous probability. Most systems tend to lull the operator into thinking they are more accurate than they really are, causing gold nuggets to be erroneously identified as ferrous. The GMT forces the operator to analyze the target more thoroughly and when there is any doubt, to dig it. The meter also helps identify iron based "hot rocks". In other words, most ferrous target systems are audio based, with a setting that may or may not be adjustable. Targets deemed ferrous on a single pass are ignored and the operator does not even know the target existed. The GMT alerts the operator to every target to make sure it is thoroughly checked out as a detector is often wrong about a target on a single off-center pass. The downside is that where targets are thick this constant analysis can place more of a burden on the operator than a system that can be set to silently ignore most trash targets. Running the GMT with the trigger switch in the locked forward position engages an audio discrimination circuit that gives an audio "grunt" whenever the iron probability exceeds 85%. This can quickly identify likely iron target without having to refer to the meter. This is a momentary indication that resets on each sweep of the target. It is normal for an operator to approach the target with a slightly different angle and speed on each sweep and so the iron probability indication will vary on each pass. The operator works the target and takes note of the reading on each pass to make a dig or no dig decision. Squeezing the trigger activates a target analysis mode that automates this task for the operator. Each target response is accumulated and averaged building a more consistent response than that generated by the trigger forward setting. Targets will tend to consolidate and build either higher or lower probabilities with multiple passes. This does not mean the final reading is any more accurate however. A small nugget in highly mineralized soil will tend to read as ferrous, and relying on the analyze feature will give a false sense that the GMT is more confident in that erroneous ferrous response by accumulating and averaging many of them. The fact is all ferrous identification systems suffer from the reality that some gold nuggets will read as ferrous if small enough or deep enough. High gain levels also increase the possibilities of inaccurate results. Some gold is actually in magnetite instead of quartz and can be picked up with a magnet! Nuggets of this type have a strong possibility of being identified as ferrous. Whenever possible a prospector should dig all targets. However, with practice a skilled operator of the GMT has a far more informative ferrous identification system at their disposal that if used properly will result if fewer gold nuggets being left behind as trash targets. Even if the GMT says the target is 90% probable ferrous it is still telling you it is a 10% chance it is gold. How lucky are you feeling? 1.89 Oz nugget found with White's GMT chest mount conversion The meter itself opens up many features lacking in detectors without a meter. The battery check reads out on the probability meter indicating the percent battery strength when the momentary toggle switch is activated. If the batteries are not fresh, audio loudness on big targets will not be as great, but there will be no loss of sensitivity or performance because the GMT is voltage regulated to run properly at less that peak battery voltage. You can rest assured the detector is working properly until the meter reads out "SORRY, LOW BATT". Be sure to have backup batteries ready to change out when this occurs. From the MXT Engineering Report referenced below "The GMT's circuitry broke a lot of new ground. It uses a reactive impedance transformation network to boost transmitter voltage for higher sensitivity. It uses an active transmitter regulator to keep transmitter voltage constant even when the search coil is moved over black sand that would blow an unregulated machine off the air." What this means is many detectors can actually go completely non-functional when operated over extremely mineralized ground and the operator will not even be aware of it. The GMT is very resistant to this occurring, but if it does the detector will give a loud audio "squawk" and the meter will read "BAD GROUND REDUCE GAIN". The GMT literally tells you your gain is set too high for the ground condition. Set the control lower until this message goes away for optimum performance. The GMT can also overload on shallow oversize targets in which case the meter will display "METAL TOO CLOSE LIFT SEARCH COIL". The overload condition will correct itself when the coil is moved away from direct proximity to the large metal item. There actually are gold nuggets large enough to overload a GMT so find out what the item is! The GMT constantly displays the ground balance setting, typically in the 70-80 range. This number is telling you what type of mineralization is affecting the GMT and is very much akin to the target VDI number displayed on coin detectors except that here it is a ground reading. The GMT goes one step father and also displays the amount of the mineral being detected. This is called the "Follow Black Sand" reading because it can be used to trace shallow black sand deposits that in turn can be used to locate gold deposits. A reference number in the upper right portion of the display shows this value. The number grows as the coil is pumped up and down over concentrations of black sand. The readings are relative so the idea is to take readings at various locations across a dry wash for example, and then to focus on the highest readings as being the probable location of a black sand deposit. White's GMT control panel When White's introduced the Goldmaster V/SAT it featured "Variable Self Adjusting Threshold" or V/SAT. The Goldmasters were the only nugget detectors for many years that allowed you to vary the rate at which the threshold readjusts itself via a variable control - anything from very fast to very slow. This allows for more control in varying situations. In general, use the lowest SAT setting that allows for smooth operation. As ground variations increase, setting a higher self adjusting threshold can be beneficial. At low settings, the coil can be swept slower without responses being overly smoothed out. High settings demand a faster sweep rate as the detector adjusts rapidly to bring the threshold back to the level set by the threshold control knob. See Steve's Guide to Threshold Autotune, SAT & V/SAT for more details. Finally, the GMT offers an optional Audio Boost setting that amplifies the audio by up to four times. This makes faint signals louder but in bad ground can also amplify ground noise. Still, this is an extremely useful function for eking faint targets out of the ground. All these features added up to the GMT being vastly more popular than the Goldmaster 4/B that preceded it. The GMT remains a best seller to this day. The bottom line is the GMT bears serious consideration for anyone wanting a detector solely for gold nugget detecting. Although the GMT is intended solely as a prospecting unit, it is very popular with meteorite hunters, and it is also one of the best micro-jewelry detectors on the market. Official White's GMT Page White's GMT Instruction Manual GMT Videos and Tuning Tricks Forum Threads Tagged "whites goldmasters-gmt" White's Metal Detector Forum Read the MXT Engineering Report - Features some important notes on GMT design White's GMT Technical Specifications* Internet Price $729 Technology Induction Balance (IB) Frequency 48 kHz Autotune Mode(s) Variable Self Adjusting Threshold (V/SAT) Ground Rejection Tracking, Fixed & Manual w/Grab function Soil Adjust No Discrimination Visual & Audio Ferrous ID Volume Control No Threshold Control Single turn control Tone Adjust No Audio Boost Yes Frequency Offset No Pinpoint Mode No Audio Output 1/4" headphone socket & speaker Hip Mount Shaft Mount Only Standard Coil(s) 6" x 10" DD Coil Optional Search Coils Three accessory coils available Battery Eight AA Operating Time 30 - 40 hours Weight 3.9 pounds Additional Technology One of the first detectors to measure mineralization "amount" instead of "type" Notes *Notes on Technical Specifications - Detailed notes about the specifications listed in this chart.

Well, here is a report on my last visit to Ganes Creek, Alaska for the year. I set myself up for this visit this spring by saying I would go to the mine after everyone had been there this year and find gold, just to prove there was still some left to detect. To show that it just can't all be found... no matter how thorough the hunters. I also wanted an opportunity to work with some new machines, and so in addition to my White's GMT I brought along a new White's MXT and Garrett Infinium LS. Brian, Jeff, and I left Thursday morning for a five day visit. We got to Ganes and settled in, then decided what to do. Brian was set on doing some prospecting with the 5" dredge Doug had purchased for visitors to use, so he was off in search of places to use it. I grabbed my new Garrett Infinium LS detector to try out, and Jeff used my White's GMT. Jeff and I headed upstream to where most of the large nuggets have been found this summer, on the theory that more were waiting to be found in the area. We scanned an area that has been heavily hunted. Three nuggets over 5 ounces were detected in the area this year, and I found out it is the same area where the 122 ounce nugget and a 62 ounce nugget were found. Definitely the center of big gold on the creek. The Infinium ran smooth and clear, so much so that I found myself waving my ring over the coil to make sure it was really working. Absolutely no signals from rocks in the tailing piles. Very odd when you are used to constant background sounds back from a VLF detector. The Infinium is a ground balancing pulse induction (PI) detector and as such it excels at canceling out ground mineralization. I got a signal now and then, and dug either a shell casing, or an iron trash target. The discrimination on PI detectors is crude at best, and so iron targets that might be rejected with a VLF (Very Low Frequency) will often be signaled as "good" on a PI detector like the Infinium LS. The basic idea with PI detectors is to go ahead and dig everything, although this can be problematic at a place with so much junk as Ganes Creek. I found the shell casings encouraging however, as that meant that not everything had been detected. I figure if non-ferrous items like bullets and shell casings are being missed, then some gold has also been left behind. Still, the area had been well searched, and the finds were few. I finally located a 13.8 dwt (dwt = pennyweight) nugget, and then a 3.8 dwt nugget (20 pennyweight per ounce). Two very nice, relatively solid gold nuggets. The Infinium had done its job. Jeff, although he tried his darndest, came up with no nuggets. The area has been hammered pretty good. We also tried some old tailings upstream farther, but found no more gold that day. Gold nuggets found with Garrett Infinium at Ganes Creek Day Two dawned under rainy skies. We decided to stay near camp, and see if there were more nuggets waiting to found around the cabins. I grabbed the new White's MXT, while Jeff stuck with the GMT. The rain got going pretty good, but we stuck with it. Lots of bullets and shell casings were dug, again, a good sign. But by the end of the day we had no nuggets. We headed up to the bench deposits above camp and found some small nuggets, just so we could say we did not get skunked. Jeff found a nice little nugget over a pennyweight with the GMT, and I got a few tiny bits. The MXT is a brand new detector from White's Electronics. Steve Houston from White's had a prototype MXT along on his visit to Ganes Creek in the spring and I had a chance to use it then. We both agreed then it had all the right stuff for finding gold at Ganes Creek. We did not use it much, however, as time was limited and we stuck with more familiar detectors. I have to note that I was very impressed with the MXT around camp. I used the 6" elliptical coil, and ran the unit in the relic mode. This mode, when set up a certain way, gives a high tone on non-ferrous targets, and low tone on iron targets. A setting right at "2" seemed to be the point where ferrous and non-ferrous sorted out with low and high tones. It was easy and efficient around camp, and all I dug were non-ferrous items. It has very good trash separation with the small coil, and easy id with the dual tone system. Great for places where trash is literally inches apart. Brian had set up in the ditch near the big nugget area, but was plagued with start-up problems with the gear, especially a leaky pump intake hose. He spent most of his day just getting set up and getting the dredge operating. Brian running suction dredge at Ganes Creek The weather cleared up the third day. Jeff again ran the White's GMT, and I the MXT with small coil as I had been impressed with it the day before. We started in camp, and I found a small nugget just behind the cabins. Then we tried some of the dragline piles above camp near where I found my 4.95 ounce nugget last year. I switched the MXT to the 950 9.5" coil. Both Jeff and I came up with nuggets weighing several pennyweights each. So far we were not exactly knocking down the nuggets. Frankly, we were both both a bit puzzled, as our constant digging of bullets indicated nuggets were still to be found. You simply can't dig all the gold while leaving the bullets in the ground. But results were lean, and our enthusiasm was flagging. I'm a big fan of aerial photos, and had some new ones showing an area downstream opposite the old bucket line dredge machine shop. Long rows of old bucketline tailings ran far back away from the road, and so I suggested we go down and check them for a change of pace. Jeff was running the White's GMT with the Sierra Max 14" coil, and I ran the MXT with stock 950 coil. The more I used the MXT the more I liked it. On the cobble piles I ran in prospect mode, with full gain, minimum V/SAT setting, and in automatic ground balance. The 14 kHz frequency ran smoother on the mixed rocks of the the cobble piles than a higher frequency detector like the White's GMT or Fisher Gold Bug 2. They tend to get weak signals of rocks because of their higher operating frequencies. The MXT was definitely smoother in the cobble piles than the GMT. We followed an old trail we had followed last year. I concentrated on the edges, off the main trail in the edges of the cobble piles near and in the brush. I got a good, clean signal, and gave a couple digs with my pick. The moss and rocks flipped back, and there lay a large gold nugget! I did not get as excited over this one as my 4.95 ounce nugget last year, as I was not sure exactly how large it was. Jeff, however, knew immediately it was something to jump up and down over. And he was right, as upon weighing it came in at 6.85 ounces. My largest nugget ever, and the largest found at Ganes Creek by visitors with metal detectors this summer. Sorry guys, but you left a big one for me to find! 6.85 ounce "Ugly Nugget" gold specimen from Ganes Creek - found by Steve H with White's MXT The nugget is strange, with very dark, lustrous quartz encasing a solid gold core. The quartz is almost like agate. Fingers of dendritic (leaf) gold reach up from the gold core into the quartz shell. It's a very unique nugget, but I'm hard-pressed to say if I like the looks of it. It has more quartz showing than gold. Some people say it really looks good, others say it's ugly. Oh well, all I know is it weighs more than any other found this summer. And that's remarkable considering the number of people over the ground, proving you just can't get them all. Side view of "Ugly Nugget" showing wispy dendritic gold Brian's initial dredge hole in the ditch near the big nugget area did not get him excited. A bit of small gold, but no bedrock, and no large nuggets. So he decided to move to a point of bedrock sticking out into the current location of Ganes Creek. The creek has been moved to the north side of the valley, which is reputed to have poor gold, but Brian wanted to check it out. At least there was bedrock showing he could get at. The next day (Day Four) Jeff took the MXT, and I went back to the Garrett Infinium LS. I wanted to put its ground canceling capabilities to use on the cobble piles, and Jeff wanted to see why I had grown so infatuated with the MXT. What's not to like about a machine that had found me my largest nugget ever? We searched far into the edges of the cobble piles along the creek. Our search led us way out on the dredge cobbles as far from the road as we could get, opposite the old dredge machine shop. There were no signals for some time, as many of these old cobble piles are relatively trash free. I was ahead of Jeff a bit, and so sat down to wait while he scanned up to me. Then he gets a signal in the middle of the cobble piles. The MXT said only 10% chance it was iron. VDI number of 55, exactly what it called my large nugget. No signal for some time, in big cobble pile... man, this looked good. He dug and dug. Got to over a foot. All indications were still good. I was getting excited, and came up to take pictures of the big find. And literally cheer him on, as he was getting a bit grumpy about the depth of the hole. The cobbles kept caving in, which can be very frustrating. And I'd exclaim "But Jeff, this is just how digging the two-pounder will be"! Jeff excavating large "gold nugget" that turned out to be a rusty can So at two feet, there is the quart paint can. Oh well, such is nugget detecting. Those large steel targets at depth really baffle discrimination systems. What is interesting, however, is I tried the Infinium out on the can, and it did call it an iron target! It seems the PI discrimination system does work well on some items that have problems on the VLF systems. The thing about VLF discrimination is it will sometimes call ferrous items non-ferrous so you dig some junk. With PI discrimination the problem is more serious - a gold nugget can easily be identified as iron, especially the large nuggets, so it is dangerous to use PI discrimination where large nuggets lurk. In any case, I sure like to see other people find gold. I always get excited when anyone finds gold, because it tells me there is more for me to find also. It's when nobody is finding gold that I get worried, and today was turning into one of those days. One the other hand, if I go out with Jeff one more time and find a big nugget, I'd best not turn my back on him. I'm likely to get hit over the head with a detector! Since we were having no luck for the day so far we decided to switch gears. Back to the old reliable airstrip to find nuggets. I've found if I'm just patient, dig lots of bullets, I can always find gold on the airstrip or around camp. But since the Infinium has minimal discrimination, and digging the compacted airstrip material is a lot of work, I switched to the GMT. Jeff stuck with the MXT. Before an hour was up Jeff found a 12.2 dwt nugget. Shortly after I found a 2.7 dwt nugget with the GMT. We both had nuggets for the day. Jeff's was a very nice, nearly solid gold piece. Mine was a broken, very quartzy nugget. Still, that seemed to be it, although we dug a small pile of bullets and shell casings. We headed up to the bench deposits above camp once again to look for smaller gold. The MXT is a great detector, but the difference in operating frequencies was obvious. We scraped areas free of overburden over the bedrock, and checked them with the detectors. The White's GMT with it's 48 kHz operating frequency had an obvious edge over the 14 kHz White's MXT, even considering the fact that the MXT was using the more sensitive 6" elliptical coil versus the 10" elliptical coil on the GMT. We dug a couple pennyweight of small nuggets, but the GMT clearly got better signals on the small gold. Small gold nuggets found with White's GMT Brian again found little gold with the dredge, and decided to wrap it up for this trip. He had his work cut out for him pulling the dredge out of the creek and getting all the gear put away. Day Five dawned a bit cloudy and cool. The only real good thing about this time of then year is the lack of mosquitoes. The cool nights have driven them off, and so our days were relatively mosquito free. A few biting flies replaced them, but not so many that I ever had to use a head net this trip. Cold weather has it's advantages. Since we were leaving that afternoon, we made a short day of it. I had pulled my left arm out of joint, and so was down to digging only targets that gave perfect id. We did a little detecting in the pile of material near the ditch in front of camp. This pile has produced several nice nuggets, and been heavily detected. But Brian is short order found a nice weighing several pennyweight with the White's GMT. It ended up weighing more than all the gold he got dredging on the trip. The weather cleared as the day went on, and I decided to spend my last few hours up in the big nugget area near the ditch. I ran the GMT again while Jeff used the MXT. I hit the road itself real hard, as I saw no signs that it had been detected much. But Ganes had given us all the gold it was going to this trip, and we went in early to pack and clean up our cabins. It may be I missed out this last day simply because I passed up lots of targets I normally would have dug. Well, it was a fun trip, with over 9 ounces of gold found. Even discounting the big nugget I found over an ounce of nuggets, with the largest being 13.8 dwt. Jeff found about an ounce with his largest at 12.2 dwt. Good-sized nuggets remain to be found, and even a few clunkers. Still, the easy pickings are gone, and it will take patient detecting to get results at Ganes Creek now. There are actually many miles of undetected tailings running upstream above the more recent workings. The areas are generally lightly brushed over, with some large open areas. A few brief exploratory runs into these upper areas have produced no real finds, but the area is vast in extent, and worth attention in the future. A talk with Doug revealed that next season there will be a lot more work done with bulldozers to make areas "fresh" again. The good news is many worked areas will be rejuvenated in this way. The bad news is you guys that did not dispose of your trash properly... well, it's just going to be there to dig up again. The future at Ganes creek is more likely to be a mixture of working material freshly turned over, and then wandering off searching for those missed areas. Finally, the detectors themselves. I like the Garrett Infinium LS. It has great bang-for-the-buck in the PI department. Its current lack of accessory coils is the only thing really holding it back at the moment. I see the Infinium as being the machine I will turn to when my normal VLF detectors won't do the trick. Ganes Creek is really not the best area for PI detectors, as the low mineralization and lack of hot rocks means the PI units have no real edge over VLF detectors. The White's GMT is slowly becoming my primary nugget detector. I've favored the Fisher Gold Bug 2 the last few years, but the extra versatility of the GMT is causing me to use it more and more. The extra depth on large gold versus the Gold Bug 2 is the big plus at Ganes Creek. The machine that really wowed both Jeff and I was the White's MXT. It's the first detector I've ever used that I really think "does it all". Now, while it bench tests well on small gold, frankly it does not hold a candle to the GMT when it comes to very small gold under actual field conditions. If small gold is your bread and butter, the GMT or Gold Bug 2 are still the way to go. Not only do the higher frequency detectors have an innate edge, but the manual ground balance offers better control for small gold. The MXT must be auto ground balanced, then "locked". The GB point is then fixed, but it cannot be manually adjusted. The GMT has automatic and manual ground balance, while the Gold Bug 2 is manual only. Steve's Gold - 8.15 Ounces Total But the MXT does do very well on nuggets weighing a few grains or more, and the bigger the gold gets, the less difference there is between the MXT and GMT. Frankly, for nuggets weighing in pennyweights or more, I actually prefer the MXT. It operates smoother than the GMT in mineralized ground, and has depth as good as, and maybe under some circumstances better than, the GMT. It's a great machine for large nugget hunting. Combine that with the fact that it has a vastly superior id system, with both iron readout and conductivity measurement, and you can actually do things like tell most gold nuggets from a .22 shell casing. I actually used the relic mode with the small coil on the MXT to work extreme trash areas to good effect. This machine has lots of potential to explore, and yet is very easy to use. Add in the the fact that it has a 6.5" x 4" elliptical DD, 5.3" round concentric, and 10" x 5.5" elliptical DD coils available as options, and I think the MXT is now the machine to beat for all-around use. And despite it's wealth of features, it's list price is only $799.95. I think we will be hearing a lot more about the MXT in coming years. ~ Steve Herschbach Copyright 2002 Herschbach Enterprises

This ended up being one real busy trip. I blew out of here about 7PM last Friday night and got to Mentasta by midnight. I sacked out in the front seat of my truck, and was back on the road by 5:30AM. Had breakfast in Tok, then on to Chicken to deliver gold pans to Sue Wiren in "downtown Chicken". Then off to Boundary at the Canadian border. I spent several hours chasing down miners to get permission to hunt land. Permission had been lined up in advance from a couple but one in particular I was trying to find. He was around, but I kept missing him. It was worthwhile as I got to talk to a couple other guys in the area. The area looks interesting so once I get permission I will have to head back up for another try. I finally headed to one of the fallback locations I had lined up, and by 10PM had found just over an ounce of gold with my new Minelab GP 3000. The largest nugget was just shy of 1/4 oz and the rest were nice chunky pieces. The area was pretty brushy and so I ran the 11" DD coil instead of something larger. I like the GP 3000... it ran smooth as silk and lacks the faint "warble" of earlier Minelab units. Steve with Minelab GP 3000 hunting gold in Fortymile area, Alaska I camped out in the truck again, and was up early again the next morning. By afternoon I had just under an ounce of gold with the GP. I wanted to hit the magic one ounce mark and so grabbed my White's MXT with 10" elliptical DD coil and headed back to the spots where I had found gold with the GP. I found another pennyweight of smaller nuggets that put me over the ounce mark. I had to meet my father and brother at the Chicken airstrip by 5PM and so I hightailed it back to town. They were there when I arrived. My father had flown up while my brother and sister-in-law had driven up. We loaded up the plane and flew over the hill to Napoleon Creek to visit Judd and his son David. "Downtown" Chicken, Alaska My brother had never detected gold before so I hooked him up with the MXT to start with. But as usual his beginners ear interpreted the threshold ground noises as signals. Nugget detecting requires more expertise in interpreting signals than most other types of detecting, especially when using VLF detectors. So I set him up with the GP 3000 instead. The Minelab SD/GP detectors are Pulse Induction (PI) detectors and by virtue of their design essentially ignore ground mineral and mineralized rock signals. What this means is they generally do not have a variation in the faint threshold sound unless an actual target is under the coil. This can be much easier for a beginner than learning the sounds a VLF detector puts out in highly mineralized ground. The GP 3000 does have a lot of control settings that can overwhelm a beginner, but using the suggested stock settings works just fine. I made a few extra adjustments for Tom (my brother) and sent him detecting. And he started finding nuggets! I always get a kick out of helping someone detect their first nuggets, and it was just that much better in that it was my brother. He decided he really liked the Minelab. Still, to prove a point I grabbed the White's MXT, and started finding about two nuggets for every one he found. Expertise does count, and in trained hands the MXT is a very capable detector. I thought it did quite well indeed in the admittedly mineralized soil conditions. Steve with White's MXT metal detecting for nuggets on bedrock exposure My father was having no luck at all. He has fairly poor detector technique, and I just can't convince him to slow down and keep the coil close to the ground. I have no doubt he walks right over many nuggets as his coil is often several inches off the ground. Coil control is one of the real secrets of nugget detecting. If you only have a few inches to play with, giving them up by running the coil high over the ground really makes it hard to find gold. But he insists on doing it his way, as he eventually always finds some gold. But he could find more. Judd put us up for the evening. We got some more time in the next morning, and Tom and I found some more gold. I ended up with about 3/4 oz with the MXT while Tom got just over 1/2 oz with the GP 3000. Dad still came up dry. Our real reason for being in the Chicken area was that we had volunteered to survey a lot for the 40 Mile Miners District. We had to meet a State survey team in Chicken in the afternoon, and so flew back to Chicken. We hooked up with them and planned the lot survey. It is amazing how something that years ago would have been very simple can turn into a major project these days. We got the planning done and then my bother and sister-in-law drove back to Anchorage. I had planned on heading back to Anchorage that night also, but the time was late, and my father still had no gold. So he talked me into going back to the border to my earlier digs to score a few nuggets. A good decision, as I came up with four fat nuggets that totaled over an ounce in weight. One round chunk weighed over 3/4 oz plus three other nice pieces. I had set my father up with the Troy Shadow X5. It was getting quite a lot of ground noise in the all-metal mode, so I set it up in the silent search discriminate mode with the discrimination set at 3. Dad ended up finding two round nuggets weighing in at over 8 pennyweight (20 pennyweight per ounce). So he was happy... he had his gold for the trip. Over 4 ounces of chunky Fortymile gold found with metal detectors I ended up with the gold above for the trip. 4.27 ounces of nice, solid nuggets. The larger ones on the left were found with the Minelab GP 3000, and the smaller nuggets grouped to the right were found with the White's MXT. I had a 9 hour drive ahead and so took Dad back to the airport and sent him on his way. A 2-1/2 hour flight for him, and an 8-1/2 hour drive for me. But well worth the drive, with gold in the poke and lots of visits with friends and miners in the Fortymile! 2011 Update: As great as this gold and outing were it turned out to be the end of this stretch of Fortymile gold adventures. In 2003 something else came along that diverted my attention for years to come - Moore Creek, Alaska. ~ Steve Herschbach Copyright © 2003 Herschbach Enterprises