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QUEST Q20 and Q40: the “SECRET” features…

After publishing the Quest Q20 and Q40 reviews, several readers have sent me some messages about undocumented “Secret” features (i.e. not described in the user’s manuals) that could be activated on those detectors in order to have really interesting results.

Before talking about them, let me thank all those friends who, with curiosity and passion, discovered this “secrets” that will extend the amazing performances of Quest detectors.

A special “Thank you!” goes to Mr. Jason Teng, Quest CEO and Chief Designer: with kindness and generosity, has given to me further details on those undocumented features.

Of course we will be ready to receive and publish your notes about any other Q20 and Q40 (and other models too!) “secret” features!

Leonardo Ciocca
AMD Tech Team
E: lciocca@amdtt.it

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ENGLISH: Testing Detech 12.5″ DD and 15″ DD “Ultimate” coils for Minelab SD, GP, GPX Series

Original article by Mirco Salmi – © 2017 Smart Metal Detecting – Published on AMDTT.IT with authorization.
(Editing and translation by Leonardo Ciocca © 2018 AMD Tech Team)

Hello my fellow detectorists! I’m here to talk about two brand new coils made by Bulgarian Detech for Minelab detectors Series SD, GP and GPX, that I will test on my Minelab GPX 4500: the 12.5” DD and the 15” DD “Ultimate”.

Before describing the coils, a short introduction about the machine I’ve used is almost mandatory. The Minelab GPX 4500 is a very sophisticated Pulse Induction metal detector, designed for gold prospecting in heavily mineralized soils. A true concentrate of Australian technology, born from the brilliant mind of physicist Bruce Candy, Minelab’s founder and Chief Designer.

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Finally I had the chance to complete my tests of the last Detech machine, the RELIC STRIKER.

Even though a new, top of the line model has been announced, the Detech CHASER, Relic Striker is still on top of the list of Detech’s “deep-seeking” catalog. This two word expression, in the treasure hunting jargon is related to specialized metal detectors, for hunting not so small and very deep targets, usually larger than a coin. In othedetech-relic-strikerr words, these machines are biased toward big targets (e.g. militaria and caches) at great depth.

Detech  Relic Striker is a single-frequency VLF/IB running at 4,8 kHz with a “monster” SEF (Symmetric Electromagnetic Field) 18”x15” coil. These simple informations, read by an experienced hunter, will be immediately recognized as a evident clue of a deep-seeking detector, high conductivity target oriented (copper, bronze, silver etc), great for not-so-tiny, very deep buried things and especially in highly mineralized soils.


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credoddmdisplayFor a long time I’ve desired to put my hands on a Nexus metal detector. This English brand, on the market since 2004, was always tied to high power products. Previous generation of Nexus detectors’ users always confirmed this axiom, with special highlight on their detection depth capabilities. Alas, the same customers were sometimes disappointed about difficulty to control stability of those machines, especially on the field. We could indicate the Nexus detectors as “Throughbred Stallions” that need to be tamed with patience and perseverance. Mr. Georgi Chaushev, chief designer and Nexus CEO, that we will soon interview, ante up with a new generation of even more poweful metal detectors with innovative and very interesting features. Continue Reading

BOOK: Andy Sabisch’s “The Deus Handbook” (INTERNATIONAL EDITION)

by Leonardo/”Bodhi3”

Before leaving you to the very interesting article written, in cooperation, by Gianni and Sergio, (once again, I’d like to thank them for their precious work), please allow me to add a brief personal note. I would like to give my personal gratitude, and also from the entire AMD Tech Team, to the XP Detectors and its owner and chief designer, Alain Loubet, that I was happy to interview some weeks ago, who kindly sent us two copies of the handbook.

Andy Sabisch is truly a “celebrity” in the international metal detecting scene. With so many years spent on the fields and on the beaches of the entire Planet, gaining an incredible hunting experience and, obviously, quite a lot of buried treasures, Andy is one of the greatest metal detecting experts and, without any doubt, between the best popularizers of this wonderful hobby. I already had the pleasure to read one of his most famous books “The Minelab E-TRAC and Explorer Handbook” where he explained, with simple words, how to get the most out of those two awesome machines. With a simple and plain language Andy is able to introduce complex concepts helping the readers to deeply understand the detectors’ dynamics in order to obtain the best performances for any kind of field of application.
After the Minelab machines, Andy “fell in love” with the XP’s jewel: the Deus. With a rigorous detail level, Mr. Sabisch presented us a truly valuable handbook so rich in information, so incredibly useful for the beginners and the experts too. I would like to highlight the manual is very updated too, since it talks about even 3.x software realease features  but never forgetting 2.x ones.

In short, a very useful book, written in a simple and flowing english that any Deus owner, who wants to push its performance to the limits, should have on his library.

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BOOK: Andy Sabisch’s “The Deus Handbook”

by Gianni/”Linux-Ubuntu” and Sergio/”Xergix”

The Andy Sabisch’s book arrived in a classic package envelope.  As soon I pulled it out, I was surprised by its size: I was expecting a tiny booklet with some “easy tricks from the detecting guru” but I was amazed to have a true 188-pages full-size-full-quality manual. The book is A4 size with a very nice and thick color cover, while inside images and graphs are in B&W. The print quality is superb, the font is perfectly readable and the image quality is really good. In short, even if it’s not printed on the best paper quality and is in B&W, it looks great and it’s very pleasant to read.

The book is written in English but it is very easy to understand even for foreign readers with enough technical English language skills. Its structure follows the one of any other Sabisch’s books, following a precise track, allowing the reader to “meet the manufacturers”, i.e. talking about the XP Detectors history, leading him to learn the detector parts, its first use and describing its advanced uses and search techniques.

In the first pages, there’s a special memorial dedication to Jogn Burke, a very famous british detectorist died in 2011, very well know as “John Lynn-The Norfolk Wolf” that probably most of your will remember for his website or his famous videotests.
In the following pages you will find a complete index and Andy’s personal thanks to several treasure hunters who gave a contribution to the book. So you will easily understand that all these contributions, together with Andy’s experiences, will have a very important and organic function in this rich and well organized book.

Andy Sabisch

Andy Sabisch

After the first introductory section, you’ll read a technical description of the XP Deus, its technology, the updating features and some very interesting paragraphs about its different operating frequencies put in relation with different targets. Those are basic and fundamental informations to start seriously learning how to use the machine at its best.
A complete description of each Deus software menu will follow. An absent-minded reader could think these page are a useless duplicate of the user guide that comes with the machine. Wrong! Each single menu item is extremely detailed and there are tons of intelligent tips. And it’s such a pleasant surprise to notice that the book is so updated, since it also contains the differences between 2.x and 3.x software release. Great job Andy!

We’ve really appreciated the section about the most interesting parameters, so difficult do be understood by beginners: Reactivity, Iron Volume, TX Power, Silencer etc.. All that stuff you MUST understand very well in order to push the detector to the limits. A very in-depth analysis of the “hidden menus” is also present (Sergio already published a very interesting article in Italian for our blog… here), with over 5 pages and several images.

Then Andy gives us some technical notions about concentric and DD coils, talks about the correct use of the pinpointer and finally bring us to the “Test Garden” and gives us very good informations on discrimination.

A very comprehensive space is dedicated to this last issue. Every issue, every parameter that is tied to discrimination is examined to fully explore audio and visual discrimination including Reactivity and Silencer.

As you’ve already got, the book follows a very precise organization, trying to unveil all the Deus’ secrets, from ABC to its most advanced features. Andy will go along with you from the beginning, helping you to discover the most proper techniques to have a succesful hunting in a variety of situation: from learning how to set the machine on “trashy” fields to how to recognize a hot rock, a iron object or any other “trash” target. A very wide number of pages are dedicated to discrimination techniques, very useful in place like parks and beaches.



In the book you will find several “tuned” programs for coin hunting. Be aware that Andy talks about USA coins, so you may need to tweak them a little to adapt the settings to your Country’s coinage. Andy and his friends also dedicated a lot of time to beach and fresh water hunting, to relics, and gold prospecting too!

Each technique will be illustrated with tips, specific settings, technical explanations and every other possible useful information. Obviously we recommend to think to these settings as a “building block” to create your own personal ones that will fit to your needings.

The handbook also includes sections about incredible  findings, Deus accessories, links and other useful resources.

Andy’s book is the ideal complementary manual to the XP user guide; Some times manufacturers’ user guides are not so clear or pleasant to read. This one will give you a great help to understand the XP one too!!!



A tip from us… Read Andy’s book several times and you will be aware that those “dark concepts”, slowly and easily, will become clearer and clearer and you will be able to master the detector at its best!

In conclusion, we really enjoyed ourself reading this handbook! It was a real pleasure because there’s always something to be learned from other people’s experience. Its a book for everyone, from beginners to experts. Reading will easily flow and will be very fun since Sabisch’s ability to melt his experience to other people’s contribution is legendary. It’s a truly useful help for anyone who wants to learn how to use the machine and it could also be used as a reference guide to refresh some difficult aspects and issues from time to time..

For more information or to buy the book:

 (Translation from Italian: Leonardo/”Bodhi3″)

INTERNATIONAL: Garrett EuroACE VS Garrett ACE 250… The Final Battle!

Since a while I was thinking about a comparison test with entry-level detectors that could be useful to beginner treasure hunters and, why not, even seasoned ones.

The Garrett ACE 250, a true worldwide best seller!

If we stop for a while to meditate on that, it will seem obvious to everyone that people who need more detailed, coherent, solid and possibly unbiased information are beginner metal detectorists. Now, if you think about the kind of detector that 99% of beginners start using, you will naturally point out entry-level or medium-low level machines. For many years Garrett was almost the undisputed leader of this market sector, at least in Italy, with its Garrett ACE 250. If we could ask to 100 Italian hunters which was their first detector, I firmly believe that at least 80 of them will reply “GARRETT ACE 250!” Continue Reading