33 posts in this topic
By Steve Herschbach
New Treasure Talk entry...
What the Automatic Signal Processing is actually doing (advanced description)
Another performance advantage of the two Auto settings (hidden from the user) is that both the sensitivity resolution and adjustment range actually go way beyond what can be displayed via the LCD segments:
Where there are ten Manual settings to choose from, the GOLD MONSTER signal processing will automatically make the optimum choice from well over 10,000 incremental steps. Where Manual 10 is the maximum level that can be user selected, the auto level selected may range above 10 if the ambient and ground conditions allow, giving a greater sensitivity than manual will ever be able to achieve.
By Steve Herschbach
Here it is! http://www.minelab.com/usa/go-minelabbing/treasure-talk/mastering-the-gold-monster-1000
"Savvy operators will be able to work the GM 1000 in surprisingly noisy ground once they come to terms with the methods I’ve described above. It takes practice but the effort is well worth it because these two Auto functions in combination with Zero threshold really does allow this detector to work in ground a VLF has no business working in - areas that I would consider to be MPS and MPF territory. In the quieter soils, Auto+ lifts the sensitivity to levels that surprised me, behaving like a much higher frequency machine Although not a ‘deep-punching’ machine like an SDC 2300, the GM 1000 still ‘holds its own’ on the shallow surface gold crumbs missed by the more powerful Minelab detectors."
By Steve Herschbach
"I am fortunate to have been involved in the testing of the new Minelab GOLD MONSTER 1000 prior to its release. One benefit is that I have seen the questions that others have posed about the detector, and now I can answer a few of them.
When I use new detectors I always have a goal in mind. I am not trying to pick the detector apart for what it cannot do. Instead, I believe most well designed detectors have something they excel at. My goal is to determine how to use a new detector for maximum benefit. The best way to make that happen is to use the detector in the way it was intended to be used, instead of trying to force it to be something it is not. The key is to be realistic. The GOLD MONSTER 1000 is sold as an entry level single frequency metal detector. Expecting it to outperform detectors costing many times its price is unrealistic.
Engineers face a very important choice when designing a single frequency metal detector, especially as regards gold prospecting. What frequency should the detector run at? That choice determines nearly everything else about the detector. In general, low frequencies below 20 kHz handle mineralized ground better, and offer good performance on larger gold nuggets. Higher frequencies over 20 kHz enhance the sensitivity to small gold nuggets, but unfortunately ground handling suffers.
The number one question I see asked on the internet is how the GOLD MONSTER stacks up as compared to this detector or that detector."
Read the rest of the report on Minelab's Treasure Talk
Minelab Gold Monster 1000 in Nevada
Eleven small nuggets found by Steve with GM1000 - Click for larger version
14.9 grains total, largest 4.4 grains Smallest at bottom 0.6 grain and 0.3 grain
By Steve Herschbach
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.