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A quick specification comparison of the two detectors. White's Goldmaster Goldmaster 24K versus White's GMT White's GMT Instruction Manual GMT Information Page White's Goldmaster 24K Advanced Guide 24K Information Page Despite similarities these two detectors have a different lineage. The GMT was part of the effort involving engineer Dave Johnson that resulted in both the GMT and MXT. The Goldmaster 24K however I am almost 100% certain is an offshoot of the MX5 project, variants of which also include the MX7 and MX Sport. Notes on the chart above. The GMT has the ability to directly manipulate the ground balance up and down via the plus and minus buttons on the pod face. The Goldmaster 24K (GMK) relies on either automatic ground tracking or the ground grab, features the GMT also shares. However, the GMK has a ground balance offset feature. Under the section titled "Ground Scan" on page 15 of the White's Goldmaster 24K Advanced Guide: "In Ground Scan you can also set a ground offset by using the UP and DOWN arrows. This selection will affect the ground offset in normal search mode whether using XGB or locked settings." Note that the offset, once set, is active in both ground tracking mode and when using the ground grab function. Normally a manual ground balance is used to just tweak the setting derived from tracking or ground grab up or down a small amount. This can be done with the 24K but in a different fashion than the GMT. The fact the offset is active while in ground tracking actually gives the GMK an ability the GMT lacks. The Goldmaster 24K has a volume control the GMT lacks. A real biggie in my opinion is that the GMK can completely block the audio from ferrous targets. The best you could get with the GMT is an audio "iron grunt" on ferrous, but no way to shut it up. This is even more an issue when you get into some bad hot rocks that signal as iron. The GMT can get pretty noisy, but the GMK allows those signals to be blocked. It can in fact also block ferrous "wrap around" signals where ferrous reads very high on the scale, almost like a silver target. Coils compatible? That very important note is to warn you that all past Goldmaster/GMT coils are not compatible with the new Goldmaster 24K. Just another tip that these really are different detectors under the hood.

Published on Jul 29, 2012 - How to find gold with the Whites GMT. Gerry shows the settings and techniques for finding even the smallest nuggets.

Whites has notified Dealers of a new VLF Gold Detector. Gold Master 24K with XGB XGB means extreme ground balance. More to follow, getting late.

https://www.whiteselectronics.com/product/6-concentric-gmt-coil-micro-tireur/ DETAILS Previously only available in Africa, this 6 inch “Micro Shooter” coil for White’s GMT has been made available for the general public as requested. It’s been called “The Patch-Killer,” “That French Coil,” or “I Can’t Pronounce the Name,” but tireur is French for shooter. If you are after every bit of gold in an area, this shooter coil belongs in your GMT’s arsenal. Specially-tuned for mineralized ground, this nugget-sniping loop is a beast on small gold. Coupled with the GMT’s high 48kHz frequency, it’s highly sensitive to the smallest flakes of gold your machine can detect. The small profile makes it ideal for detecting in brush or rocky hill-sides, and with the small detection window you can more easily pick through tailing piles and areas with bits of iron from past mining operations. SKU: 801-3250-1 $149.95

Hello Steve I have a? I bought a gmt a 2008 e series from a brian that was at gains creek when you found a big nugget with a Mxt . I have an mxt 300 the gmt I got from him seems weak or not ad great as my mxt can you help it's an old gmt 2008 e series is there a way I can make it better. the brian from amds aka akmining he know you I want it to be better than my mxt

Finally! Found with White's GMT and the 6" concentric coil. Couple grains, about 3" deep. Smaller foot was perfect for working bedrock cracks and avoiding giant hot/cold rocks in highly mineralized ground.

I am very new, is there any way to tell the approximate depth the item you detected? I have a GMT.

Must admit i am seriously looking at getting a GMT for some of my permissions,although i am not a nugget hunter but the 'allure' back too a celtic gold stater site has wetted my appetite again,although i do/still use the TDI Pro i think the GMT could be used more and more also for micro jewellery as well. If one came along almost new at the right price i could well be very tempted to buy one. The machine/s that have found me the most gold are the T2 and the DFX,those have found me the most gold coinage over the years from celtic full and quarter staters,George111 full guinea,Vicky Sovereigns and more.

I've been planning on some testing of the GMT's ability to find paystreaks of black sand. Finally went down near the Utah border and collected some sand to use. I was disappointed in how slow the GMT's indicator changed over the sand I used. Much too slow, unless you want to die of boredom before finding any. That's probably why so little is written about it. It only works in "autotrack", too. I tried various levels of V-Sat, Gain, etc., but nothing worked in a way I'd spend much effort doing. But, I DID find something that works.` I put the GB in Manual, and cranked the GB as POSITIVE as it goes (99). That way, it only responds to REALLY strong positive signals, and most negative signals. I turned the THRESHOLD all the way down. At those setting you hear very little ground noise, but still get a good response on the black sand. The gain can be adjusted to ignore the general levels of blacksand on a bar, but still respond to a higher concentration of it. The response is fast, so you can run the detector as if looking for gold. Of course, you won't hear any non-ferrous targets at these settings...they're strictly for finding concentrations of bs. The concentric coils had a definite advantage over the DD, but I would have no problem using the DD for this. I was using blends of pure magnetite,or at least ALL of the black sand I used could be picked up with a magnet, mixed with sand that had no magnetic iron in it. I used both a 1:5 ratio of bs to white sand, and a 1: 10 ratio. Both were detected at nearly 4". I didn't try any ratios below 1:10, but I'm sure a ratio of 1: 20 would be detected, but might be only at shallower depth, depending on where the gain was set, and that would depend on the level of bs in the general run of the bar being detected. Another thing on the mixes used....I used a teaspoon of magnetite in each mix. Put them in sandwich bags, and spread it into a thin layer. But, to be fair, the coils could always see the entire teaspoon of magnetite, as the test blend, even spread out, was smaller than the area of the coil. All of the sand used was smaller than #50. I tried using the "learn accept" function on the DFX, but could make nothing work on that for finding black sand. Tried several different programs and settings, with complete lack of success. Jim

Around the time the Minelab Eureka Ace Dual came out I found this piece near Sofala in New South Wales with a Whites GoldMaster. Neither my Minelab 16000 ground tracker or the Eureka Ace Dual can hear it and a GPX5000 with the new coils can`t hear it, but the 5000 with the 8" Commander can hear it at about 1". It sg`s at 13 grams gold but I`ve never believed there`s 13 grams in it. Most of the little pieces around it are connected electrically. cheers Dave

I received this question via email, edited to remove any tips as to the source: "Steve- been reading your reviews of detectors from way, way back. Now I'm looking for a bit of advice. I've got a claim where I've pulled nice gold, but the biggest single nugget has been just about a gram, pretty small stuff (but it's pretty plentiful). My GB-2 has really shined in this environment - shallow bedrock, low mineralization, and plenty of small gold. The issue is that my son doesn't want to let me use the GB-2, as he wants to use it all the time. That puts me in the market for another VLF machine. I've tried the GB-Pro, and didn't really care for it. Your review of the Nokta AU Gold Finder, and the Makro Gold Racer, both look pretty good. Other than the display and control box itself, are these machines really the same, or would one do better (coil size being equal) than another on small gold with low mineralization? The reason why I just don't go get another GB-2 is that it would be a nice bonus to use the new detector close by my son, while still hopefully having it excel and finding small gold. Any insights would be greatly appreciated. If there really isn't anything else that comes close, then I'll certainly go for another GB-2, even at it being as old as it is, but if there is another one that would excel in the above environment, I'd certainly appreciate your opinion on it." Well, in my opinion the 71 kHz Gold Bug 2 with 6" coil has been and continues to be the top of the heap when it comes to finding the tiniest bits of gold. So the real question is whether you feel like giving up that little edge the unit has over all the rest in order to run a machine right next to your son without the two machines interfering. You also have the advantage of being very well versed in the use of the Bug. Let's assume you do want to get something else however. You have mentioned the 56 kHz AU Gold Finder and Gold Racer, and they are indeed the same circuit in two very different packages. Coils from one will work just as well on the other. Other current new model alternatives would be the 48 khz White's GMT and probably the very soon to be available 45 kHz Minelab GM1000. Finally, I should mention the XP Deus V4 high frequency coil options hitting the market now in case you might consider a more exotic option. There also have been hints of a dedicated gold machine from XP this year. I would assume a small coil as being a must have, and an advantage with the Gold Bug 2 is you can get it with the small coil as a stock variation. So let's compare internet prices. Fisher Gold Bug 2 with 3.25" x 6.5" coil = $764 Makro Gold Racer with 5.5" x 10" coil $699 plus 4" x 7.5" coil $119 = $818 or Pro Pack $899 Nokta AU Gold Finder with 5.5" x 10" and 5.5" round coils = $999 White's GMT with 6" x 10" coil $729 plus 4" x 6" coil $127 = $856 Minelab GM1000 with 6" x 10" coil and 5" round coil = $799 A Deus runs $1250 plus the 4.7" x 9.5" elliptical HF coil at $425 = $1675 so not a good fit here for price and no smaller coil option than the elliptical. The only hope of that improving is if the dedicated gold machine shows up with the HF coil as stock. I have to admit that the reports of warranty issues with early Gold Racer models have me concerned. This despite the fact I have what must be the oldest Gold Racer and AU Gold Finder units in the country, and both are going strong. I have to assume the issues, whatever they were, have been ironed out. I don't know that for a fact however. If you got one and still had a problem, Nokta/Makro is famous for resolving issues with customer satisfaction. The units carry a two year transferable warranty. The GMT is the safe tried and true made in the U.S. option, and as far as performance the 56 kHz Gold Racers and 48 kHz GMT run neck and neck. The big unknown at an attractive price is the 45 kHz Minelab Gold Monster 1000. My best advice - wait! The flood gates are just now opening as regards reports on the GM1000 and at $799 with two coils it looks on paper at least to be an option worth waiting to find out more about. If you have to do something this minute, the GMT is the safe option if the reports of problems with the Gold Racers worry you. Personally, I have been very happy with my Gold Racer and would not trade it for a GMT. I have to note I finally did get another Gold Bug 2 with 6" coil however. If you are the sort of person who can't live without having that last small edge of performance, it is still the machine to beat for tiny gold performance in milder ground like you are describing. Click picture for larger version.

Been getting into macro photography, here are some close-ups of nuggets found with a GMT in Northern California by the factory's own Steve Howard. What's your best nugget picture? Interested in seeing different photographic techniques... might steal some ideas from those with more experience. I know "size matters" so having a reference like a US Quarter is good, but I think there is a lot of beauty in seeing just the nuggets - texture, structure, color, that sort of thing.

Steve, I still have my old White's Goldmaster V-Sat. It's the same one I used when we hunted together at Crow Creek. I have two coils for it, the original coil it came with and the very small one that is used for tight places and bedrock. This is the coil that White's first put out when we lived in Alaska, small and black with no markings on it. Steve Houston introduced it when he came to Alaska on his promotional trips. I don't use the original one because I find it impossible to ground balance with that coil, so I am limited to just using the small one. That's ok by me since most of my limited and sporadic nugget hunting is in bedrock areas. The problem I am having is that I constantly get false signals and lots of other noise whenever the coil comes in contact with anything. If I bump rocks or brush, or if I even brush it up against wet grass it will false signal. this makes it impossible to "scrub" the ground as you advise people. I am wondering if this problem might be in the settings on my control box, perhaps I am choosing the wrong settings? I have tried just about everything I can think of, but it does this all the time and is very annoying. Is there anything that you can think of that I may be doing wrong?

Well I got my new GMT today! I had to try it out. I only had about an hour of daylight. I was around an old tailing pile. Lots of trash. I didn't even get my headphones yet but it was quiet where I was at. I'm happy with my first outing. I found one 22 casing, one small piece looks like a rock sticks to a magnet, and one mangled piece of lead. The lead can write as you can see in the pic. Again no real finds but I'm happy in .the one hour I had. I can't wait till I get to really try it out.

I am wondering if the Nugget Buster headphones would be compatible with my GMT? I see they have an ohm rating of 150. My GMT has a suggested ohm rating of "at least 60" ohms. With the 1/4 inch jack, would these work for me?

Just thought I would relate a happening on my past hunt. In water about 30 inches deep I got a hit. I set my machine on the bank, control box lower than the coil and started moving some cobble. I grabbed the detector to do an iron check before committing to the dig. WOW! I'm glad I made that decision! I had carefully searched in the river and watched the depth but forgot about the adjustment holes in the upper shaft. The shaft filled with water (apparently) and when I laid it down the water rolled back and was draining down thru the iron test trigger. Can't be good! I am wondering if drilling a hole in the bottom carbon fiber shaft is a good idea?

I was surprised, never having run a high kHz machine before, I nearly went off the road at first! Got my machine last week and got to hunt about 6 hrs. this weekend. Got skunked but was happy I got the feel for the machine and kept it on the road. I really got to see the difference between my PI machine, my AT Gold and this GMT (my red hot poker). This is the first time I've had two VLF machines with kHz ratings this far apart and the first time running 48 kHz. I'm laughing about it now. I was totally caught off guard and figure I might have been a little to cocky, so it makes me laugh. Another life lesson learned. And, I picked the river where I knew the hot rocks covered the bottom, shallow overburden and lots of exposed bedrock. So, how's that for cocky? So, I went up the river hearing, boing, boing - boing, boing - boing, boing - Ha! I loved it! (I was thinking, "I know you and.......I know you and.......I know you"! One thing I found concern with is, the Thold wouldn't run smooth till I turned the gain to 2 - 2 1/2. I need to do some testing to see how much I am losing by having to do this. Are there other tweaks to smooth the Thold without losing gain? It was a beautiful early fall day. Clear sky, light breeze and in the 70s. It was a great outing and the first outing with my GMT. So far, so good.

Hi All, I have just started getting interested in gold prospecting and I have been thinking about getting a detector. I live in Anchorage, AK and was curious if there is anybody around here that could provide some field training for using a gold detector. I have been thinking about getting a White's GMT or Fisher Gold Bug 2. I am leaning towards the GMT right now.

In the past we have used VLFs for Nugget hunting and everyone was over the moon with their machines and since the Birth of the PI a lot of people put down VLFs, Which is A Bit unfair Really, We have seen all the manufacturers Telling us all how good their machines are and about the Difference with their tracking systems etc etc, In OZ a certain Famous Gold Nugget was found with A Garrett and that was a VLF although the nugget was Huge it was found about a Foot Deep, No Doubt our Machines have moved on Since the 1980s and Now we have different types of Tracking systems, The Theory of these system is to Balance out the Ground and keep the Detector running Smoother by making the Ground Invisible to the detector, Well If This Is The Case then why when we GB our machines Does the Ground still give us Problems, Like Drag down the VDIs or make Gold Give an Iron Signal or Reduce the Depth of the machine when the Ground balance was supposed to Take Care of that Problem?? So If the Ground is still causing problems It makes me Wonder if I am in fairly hot Ground and I wave my coil Over a 2 ozt Nugget ? ( I wish ) would I still hear it at about 7 to 8+ inches using My MXT, Or Would My GMT do it better. I know the 14 kHz will work better and deeper in hot ground, But after reading A Famous prospectors comments I am not sure about which machine would find that 2 ozt Nugget easier. Thanks Guys,, John

that will enhance it's character and performance. Thanks for any help.

G'day All I have just been Testing the GND readings On My MXT and My GMT and naturally they don't Match?? Anyway the MXT read 84 to 85, But the thing that has me Thinking Is with the GMT If I have the 6x10 Long Scan coil on it I get a reading of 65, but If I put the Twin D Coil on it I get A Reading of 78, So If DD's are meant to be Better In Hot Ground, Then why does the Concentric give A Lower Ground Phase Reading Than The DD, I am starting to think that Concentric Coils are just as Good In Hot Ground BUT ??? because they are more sensitive that they pick up More Noise, And the fact that they are more Sensitive they Give A Truer Ground Reading?? I know that the 6X10 Long Scan see's things that you would normally find with the Little Shooter Coil, Which is another reason why the GB 2 Is So Hot on Tiny Gold. But It is those GND Readings that are making me think this way. John

Steve, I am wondering In that Area where you found that 6+ozt Nugget which Machine would be better out of the GMT and the MXT?? Baring in mind that It appears that the Software In The Newer GMTs seems a lot more powerful, In Air Tests It seems to be a lot deeper or maybe I just have a bad memory, But it Picks Items up from a HUGE Distance and If it Losses 50% of that distance in the Ground ?? Then It is Going to Be Awesome Out In The Field, So I am Wondering Have I bought A Mutant GMT or are all The Newer ones Like This??, As you have pointed out Many times that the MXT works better in Hotter Ground, But with this GMT I am Not so sure Now With the 5X9 (6X10) Twin D coil it is seeing things at the Same distance as my MXT 300 did using the 12" concentric Coil, we all know that coil see things about 5 or 6 inches more than the 5X9 Eclipse Coil Does, So Something In The Power Department is really Set to The MAX with these Newer GMTs, Thanks Mate,, John

G'day Folks, I have been testing the coil /Machine out today and I thought I would post a couple of pictures of how sensitive the standard Coil Is for future reference, The Small Bit is less than a 10th of a Grain and the larger Piece is around about a 10th of a grain +/-, the Scales fluctuated and the Bigger piece varied up to 0.2 grains The Smaller Piece was giving a Signal at 2 Inches and the Larger piece was reporting at 3 inches, John

Ok guys, i am in need of more input. i own fors and gmt amd vsat. i havent had chance to use 705 yet. i have very little time on any given machine as well. terrain- small gold, med to high hot rocks, b.i.f., Trying to narrow down primary candidate. Could golden hawk b in running? Dad has gb 2 its not going anywhere soon.