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Although I find these various nail tests somewhat interesting, 2 major flaws remain with these tests.
1) The nails are all the same level (height) on a horizontal plain. Which means, if you could raise a nail or group of nails to a greater or lessor height, the results would dramatically change. Which would allow one to manipulate the results. In other words, one would have to first ask, what exactly trying to prove with this test? There are literally, thousands of examples of nails and target positionings if you turn this into a 3 dimensional test, which, of course matches to the real world field matrix.
2) Even with the nails the same elevation on a horizontal plain, any nail ban be moved slightly in a parallel or adjacent direction, again, changing the results. It is lacking any international set of rules/guidelines such as size of board, length, mass and composition of nails. Also, size of coin and again composition of coin. One also has to ask how mineralization of the surrounding matrix of nails/coin would effect the final outcome.
Sorry for ranting on, but I have been involved with medical research, involving a triple blind drug studies, a double blind drug study and a life-saving E. coli O157:H7 (hamburger disease) intervention test. All these tests have extremely high standards. This nail test is really flawed in so many ways as I have explained. And we haven't even dabbled into the different characteristics of the detectors, such as operating frequencies, sizes of coils etc.
You can’t hide your sarcasm in text!I am suprised the f19 done so well against the multi freq. ..joe
The coming reviews and test videos are going to be interesting. Had one on order but cancelled it after some early negative reports.
Thanks for this, Shelton.Could you test it with Iron Audio OFF?
will be doing my OWN test today on way to pick up a Apex and Simplex.....
I saw it... something smells dead afterwards. Hey, I’d love to see the Time Ranger Pro in the mix on these tests. It’s another solid performer at a low price. I let mine go as a gift to the father in law. Slap that apex back on the counter and demand a TRP. 400 bucks.will be doing my OWN test today on way to pick up a Apex and Simplex.....
At last,somebody who recognises the futility of nailboard tests........thankyou John.Although I find these various nail tests somewhat interesting, 2 major flaws remain with these tests.
1) The nails are all the same level (height) on a horizontal plain. Which means, if you could raise a nail or group of nails to a greater or lessor height, the results would dramatically change. Which would allow one to manipulate the results. In other words, one would have to first ask, what exactly trying to prove with this test? There are literally, thousands of examples of nails and target positionings if you turn this into a 3 dimensional test, which, of course matches to the real world field matrix.
2) Even with the nails the same elevation on a horizontal plain, any nail ban be moved slightly in a parallel or adjacent direction, again, changing the results. It is lacking any international set of rules/guidelines such as size of board, length, mass and composition of nails. Also, size of coin and again composition of coin. One also has to ask how mineralization of the surrounding matrix of nails/coin would effect the final outcome.
Sorry for ranting on, but I have been involved with medical research, involving a triple blind drug studies, a double blind drug study and a life-saving E. coli O157:H7 (hamburger disease) intervention test. All these tests have extremely high standards. This nail test is really flawed in so many ways as I have explained. And we haven't even dabbled into the different characteristics of the detectors, such as operating frequencies, sizes of coils etc.
You do not hunt fresh plowed fields, do you? Ah naa, your detectors only like undisturbed grounds. lOlIt's a universal test that is completely flawed.This shows how a detector performs amongst iron above the soil.....great if you search for objects lying on the surface in amongst iron.I don't make up my observations,i test them before i comment.If you do a nailboard test with a certain detector you will get a set of results.If you bury the same nailboard and leave it for a while for the ground to settle......you know,actual detecting conditions.....,,,,you will get a totally different set of results.An above ground nailboard test is totally useless to show how one detector performs on targets amongst iron underground.It is also useless as a test one detector against another.The only way to show how a detector performs on targets amongst iron is to test them on buried targets......FACT.Another useless test i often see is people showing how well their machine discriminates against an object such as an old rusty horse shoe.They wave their coil over the horse shoe adjust the discrim so it knocks out the shoe and then demonstrate how well their machine can still pick up a tiny good target.Well i'm sorry but if that horse shoe has been buried in the ground,undisturbed for a period of time,it will be picked up by the same detector far more easily than it is in the air on the same discrim setting.
I've tested targets above ground and recreated the tests under proper detecting conditions......until you do the same don't believe that a nailboard test can show the strengths and weaknesses of a certain detector on targets that have been in the ground for maybe hundreds of years.I bet many have purchased metal detectors after watching nailboard tests only to find that their new purchase doesn't quite live up to the results they have witnessed on youtube videos.
As for struggling in the hobby,i have found many small hammered and roman coins and artefacts in iron infested areas over here in the uk,i've had massive success on the beaches and have found objects that have ended up at the British museum.......and never once took any notice of a nailboard or air test.