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Detailed Review Of White's Goldmaster 24K


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Thank You Steve for "making" the time to do a quick evaluation on this newcomer.
I myself have been waiting "years" for Whites to upgrade the GMT line !
I used a GMT for quite a few seasons and did very well in nuggets and meteorites with it.
Truth being over 60 small nuggets from 1 patch alone.
Next thing will be getting my hands on one to try out.
Its also very satisfiying to me to see a new "Made in the U.S.A"  entry in the Gold Specific detector field.
Hope to see you somewhere in the field this season.
Hapy Huntn.

GOLD 003 (2014_12_19 01_20_22 UTC).jpg

gold 009.jpg

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Informative write-up Steve.  Thank you.

Question.  Is there a noticable difference/enhancement in performance with the extra voltage put to the coil with the 24k, compared to the lesser voltage of ther GMT?  

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I did not have a GMT to compare directly, and so can’t answer that question with any degree of confidence. Things get real hair splitting when detecting 1/10th grain nuggets. I still know people who think the Goldmaster 3 is better than the GMT.

I have been getting lots of messages from people who seem to think I have secret private information regarding which over 30 kHz detector is best. The truth is not much has changed since the 50 kHz Goldmaster II came out around 1990. I can drag a half dozen of these “over 30 kHz” nugget detectors out and spend hours trying to figure out which one I like best. They basically all get the job done, and none so well as to make the others not worth consideration.

It very much does boil down to what feels best on my arm and sounds best to my ear. Most importantly, which machine is best depends a lot on the exact mix of ground, hot rocks, size and type of gold, the amount of trash, and level of operator expertise. This being true I might prefer one model at one location, and a different one someplace else. This is actually almost guaranteed.

I just don’t see how anyone can make decisions like this based on anything other than getting and using the detectors in question. Sure, I could pick one for you, but you might hate it for reasons that matter not at all to me.

I think the 24K is a fine machine but my gut feeling based on memory is no, it does not automatically blow the GMT away. It’s just different, that’s all, and I have no idea whether a die hard GMT user would consider this an upgrade or not. From my perspective going from one 48 kHz detector to another 48 kHz detector is a side step. To really add capability you need machines to be as different as possible, not the same as possible. Will switching from a GMT to a 24K make a giant difference in gold getting capability? Not really. Would adding a TDI SL to a GMT extend a prospectors capability in a significant way? Much more likely.

So if I was going nugget detecting tomorrow and had to pick one, the GMT or 24K, which would it be? I honestly do not have a preference. I tend to trust the GMT more as being the “old reliable” but I did like the concentric on the 24K. Yet I have never used that coil on the GMT and it might do just as well. Gun to head I would probably go with the 24K just because it’s new and I do like the new toys. But if a GMT owner gets a 24K and says they prefer the GMT I am not going to argue with them either. If I can barely decide which machine of four I like best when they are sitting in front of me then I have to really, really sympathize with those trying to make these decisions just based on reading reviews.

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Thanks for the reply Steve.

Most of the changes/upgrades on the 24k are pretty clear, or understood with your hands on explanation, e.g. the different threshold system.

I guess I'm trying to wrap my head around the end result, or performance enhancement caused by the increase in voltage to the coil, if any?   Whites has made a point to prominently mention it as an improvement over the GMT, yet with no explanation of any benefits to be derived.

Perhaps tboykin can chime in?

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On 9/11/2018 at 12:30 PM, phrunt said:

Upon looking at the Whites 24k I notice it has a feature I do like, it sits stable on the ground.  I get really annoyed with my detectors falling over all the time.

White's has always made the most stable detectors . That's another advantage to rear mount battery boxes - low center of gravity.

John, thanks. :smile: I figured I may as well put my newfound 24K knowledge to work showing the detector to people at the Rye Patch hunt. Some forum members were also inquiring about whether I would be there and so I will be there. I don't show my face in public often these days so it is a rare opportunity to chat with some folks.

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Well, it took a bit of searching, but I found what Whites suggests is the result of the increased voltage to the coil.  It is contained in the introduction page of the user guide. It says:

"The GM24k features a 54% increase in coil voltage over the GMT.  You will see this in increased sensitivity to small nuggets".

That will be interesting since the current GMT is already easily capable of finding sub-grain bits.  How much smaller can you go?

What would be truly noteworthy, is if the 24k can find those tiny bits at demonstrably greater depths than the GMT.

I'd love to see the GM24k/GMT working side by side at Rye Patch, it would be a fun time.  Unfortunately, it would be over 2000 miles for me to travel one way.

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I bought my first detector in 86.  It was a White's.  I still have it and it has a stand for the metal box.   I'm glad to see something new from Sweet Home.

I would not get this White's unless I had a cover for it and then I would still prefer to have a stand get those batteries up off the ground.

Mitchel

 

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Very detailed review I've been waiting for this, thanks Steve. I think all high end VLF detectors are hard to separate when it comes to pulling tiny nuggets. For me, it's how one detector can handle highly mineralised ground and hot rocks over another. I love my sdc2300 but would like a good VLF detector also & now with so many improvements lately from Makro, Whites. Minelab etc.. It's not an easy choice to make. That said I'm liking reports coming in for the Gold Kruzer, I may have to wait until some of my fellow Aussies chime in to see if it will be good enough for our conditions.

Joe.

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    • By phrunt
      We've been in a bit of a Covid lock-down recently and during that time my Garrett 24k arrived so I wasn't able to use it in the gold fields straight away, it was quite painful to look at it knowing I can't go and use it, fortunately we came out of our lock-down and as took off for a prospect with the 24k as soon as I could.
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      I started the day using the 10x6" Coil as I wanted to see how it goes and I was going back to a spot I'd found a fair few grams of gold in the past, about 30 or more nuggets using the scrape and detect method taking off layers of soil at a time and detecting it.  The initial nugget which was just under half a gram and a fair few more were found using my GPZ including a 4.2 gram nugget and then I brought in the Equinox with 6" coil to clean up as a majority of the nuggets were very small and the VLF's tend to do better cleaning up these very small nuggets.  I'd even gone over this little scrape and detect area with the Gold Bug 2 however it was a bit of a nightmare as the area is absolutely full of hot rocks and the Gold Bug 2 in heavy hot rocks isn't a good detector in my opinion, it's too busy making it's response noise to the hot rocks to worry about the bits of gold next to the hot rocks so you miss nuggets if they're near hot rocks.  The problem is this spot is loaded with hot rocks all through the soil of various shapes and sizes mostly a green type of schist that is all crumbly and broken up and detectors love to sound off on it.  It's likely there from the old timers, it's basically some old workings where the old timers left their rock pile in a little gully, and right on the lower downhill side of the rock pile was my little scrape and detect patch.   Even the GPZ struggled with all of the hot rocks so I was quite pleased how the 24k was coping with them, sure it was sounding off on some of them too but it wasn't too troublesome and seemed to ignore the little broken up bits and very usable.
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      So I just started scraping back layers and detecting taking about 2 inches off at a time knowing the gold here is likely going to be very small and it will be stuff I've missed in the past as I've scraped this spot out before and back filled it so I was essentially checking the same soil all over again for anything I missed.  I had high hopes I had missed some as all it would take is a small hot rock to be sitting on top of the bit of gold the previous time and I'd likely miss it or just the bit of gold on it's side being a very thin one or any number of reasons, even just at a depth too deep for the size of gold with the detector I was using.
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      Quite a decent size one too, I was baffled at the time why I'd missed this one in the past.  The 24k had now found it's first gold, highly likely the first piece of gold found in New Zealand with the Garrett 24k, a badge I'll wear proudly. 🙂

      Next up was a reasonably faint but very repeatable signal with no target ID showing, I delicately used my scoop to scrape soil away knowing this was likely a very small bit of gold and it sure was... my smallest bit of the day too and surprised I managed to find it with the 10x6" coil, I don't recall ever finding a bit this small using the 10x5" type size on other detectors.

      Can you spot it? 🙂

      There it is!

      0.007 of a gram, not bad for the 10x6" coil, especially in this hot rock infested ground.
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      I kept scraping down layers and found another.




      Quite small too... but a bit more meat on it than the previous one 🙂

      I'd had enough of the scrape and detect spot by now and wanted to go explore a bit to see how the 24k performed for general detecting so I walked for about 10 minutes to another spot I'd found some gold in the past and detected for about an hour digging plenty of shotgun pellets, completely normal in this area as there is a rabbit plague that causes countless thousands of shotgun pellets to be distributed all over the place for me to clean up 🙂  I didn't have high hopes as myself and a friend (JW) have absolutely thrashed this area but it's always possible to miss gold when there is so many pellets.  We generally scrape a few times and if the signal persists dig it, if it moves after the first scrapes ignore it thinking it's very likely a pellet.
      A few pictures of the sort of terrain I was detecting.

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      Pretty wild rocky terrain and only really suitable for smaller coils.

      The GPZ with it's stock coil is terrible here, the smaller the coil the better in general.
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      Not a bad size bit for the area too
       

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      I found a bit of raised bedrock and had a signal that persisted down into the schist.  At this point it almost had to be gold so I started filming.
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      A nice little piece too, a roundish flat one.

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      I had a signal that persisted down into the gravels on the bedrock.

      And got this one!

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      The total for the day.  Very happy with the results.
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      Whites fans will be pleased to see all the references to Whites on the box.

      That looks like Steve's scoop to me 🙂
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      The charger and car adapter, lighter socket to USB adapter and also a power socket with various countries that is like a phone charger really, it just converts the AC to DC 5v 2.1 amp USB power, so you can use any USB charging adapter that can output the 2 amp's to charge your batteries. The charger will also charge on a common 1 amp USB port, it's just going to be slower.  Very handy as I can charge the batteries in my Caravan or anywhere really with USB charging.   The charger can also charge AAA batteries as well as the AA's required for the 24k, quite handy.
      The 12v alligator clips charger to lighter socket is very good quality too, nice thick cables and inline fuse.  Even the little lighter socket to USB is a good quality product, came in a little package showing it's got a 2 year warranty.  It's made by Aukey and has 2 x 2.4amp USB ports on it for fast charging.


      The charger has Micro USB and USB-C support, so you can use your phone charging cable if you've got one of the many Android phones using Micro USB and forget to bring your Garrett supplied cable.

      This is the batteries inside the mounting box that slides up into the back of the 24k.  They're easy enough to put in there.

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      And the back of the control pod, again another Whites logo

      I think they've done a good job paying homage to Whites, while also putting their own touches on it, a very impressive detector.
      Now for the meat and potatoes, I took it down behind my house to the river and fired it up, I had no idea what I was doing as I'd only used it for a few minutes but I took a couple of videos comparing how it was operating compared to my Equinox with the Coiltek 10x5" Nox Coil.   Take these videos with a grain of salt, I've spent 5 minutes using the Garrett 24k but I found it very easy to use and understand, it can just be a turn on and go detector by the look of it.  It handled the ground well, and I was very happy with the sensitivity of it,  I absolutely can not wait to get the smaller coils for it, especially the concentric coil.

      I had put the Coiltek 5x10" Nox coil on the Equinox so it was more like comparing apples with apples and tested both detectors on a small #9 lead pellet.  The 24k certainly had the edge on air test depth.
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      In this video I take both for a little walk around showing how they handle this difficult ground that's covered in hot rocks.  The 24k was completely free of knock sensitivity, something I'm going to find very beneficial with the areas I hunt being rocky.   Both detectors have their settings maxed out, the Equinox is on 25 gain.
      Now I've got to get the batteries charged up so I can use it properly, at least they had enough charge in them from the factory for me to take it for a test run.  We are in a 2 week Covid lockdown at the moment, we are expected to come out of the worst of it on Wednesday so hopefully I can go find some nuggets with the 24k soon, judging by my first impressions of it I am sure I will be able to achieve that quite quickly.
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