Anyone with a 2-box?

[Qiaozhi]

Very interesting

I was today just studying carefuly those tests on garysdetecting site very much. You will notice that the digger of the hole has long hair and is unshaven. Also if that is not bad enough he uses a tape measure that is in centimeters only and is green. What type of person would have such a tape measure. I would suggest an “East European” or worse. I would not take to seriously any results from such tests. Please excuse my bad English. Very much we hope you like it . Good day from Borat

Round one is complete...

DFX 9.5" coil disc mode -- NO
DFX 9.5" coil all-metal mode -- NO
XL-Pro 9.5" coil disc mode -- NO
XL-Pro 9.5" coil all-metal mode -- NO
GTI2500 12.5" coil disc mode -- NO
GTI2500 12.5" coil all-metal mode -- not sure, very erratic
HeadHunter PI 11" coil all-metal mode -- NO
Discovery TF900 -- not sure, very erratic

The one I thought would work for sure...

XL-Pro 25" coil disc mode -- NO
XL-Pro 25" coil all-metal mode -- NO

Yes, that's a 25-inch Magnum coil on the XL... not even a whisper.

The TF900 and GTI2500 were misbehaving... I need to figure out what's going on with them. In AM mode, the GTI seemed to hit the cache every third or fourth pass.

I have misplace the battery for the SD2200, so I will try to test it in round 2. Also, a Fisher Gemini 3, CZ70, Garrett BFO w/ 24-inch coil, Infinium, Hammerhead w/ 1-meter coil, and Cortes w/ 12x10.

- Carl

I've been away all this last week, and am just catching up with things on Geotech. It seems that the long-haired metric vegan ******* was correct then.
Actually, I know this guy who dug the hole, and these tests on Gary's site can be trusted. Anyway, Carl's findings are confirmation. The results are quite surprising.
It will be interesting to see what the Gemini 2-box can do.
By the way, here he is again digging an even deeper hole - over 1m deep!

[Carl-NC]

Garrett GTI2500 w/ depth multiplier rig -- NO
Fisher Gemini 3 -- NO
Teknetics T2 -- NO

OK, found the battery for the SD2200, but it's dead... now I need to find the battery charger.

- Carl

[Gary UK]

Hoard test

Thanks for looking at my hoard test guys, we tried to make the test as close to "real life detecting" as possible. Burying coins in a new hole is never a fair test, this is why we dug through undisturbed soil...Still not a 100% but enough to prove what depth todays machines could reach, and prove how little technology has moved on in the detecting world. I like to run my site honestly with no dealer bull, what we find while out testing is genuine, please feel free to send in your own field reports and reviews they are always welcome.
Gary
www.garysdetecting.co.uk

[Unregistered]

2 Box depth

Whites on the U.K. web site quote depths of 3.5 feet on a 3" square of metal,4.5 feet on a 6" and 4.5 feet on a gallon can for their two box. As Esteban mentions solid metal gives good depth while that of a hoard of coins is much reduced.
Has anyone tried testing say a coke can and a similar sized container of loose coins to see what the depth difference would be ?

[Esteban]

Mixed coins

Another important consideration. I mix different types of coins, the 50 per cent of these in ferrous range (we have here very special steel coins since 1975, this coins never are oxidated and there are in different sinces, and also "rare" alloys under ferrous range of another countries) and the rest 50% coins detectable in discrimination mode. If you only use discrimination mode the reduction in detection is great. This test I make in air.

[Esteban]

Sorry!!!

...there are in different sinces

No sinces, SIZES!!!:o

[GaryUK]

Coke can

I am sure a coke can will be located deeper than a small hoard, it is a very highly conductive item. This is the point I am trying to make...how deep can a top of the range hobby metal detector actually go on buried coins..not as deep as they would like you to believe.
2 box models have a very narrow search field despite the big coils.

[robert]

Whatttt!!!!

:mad: :mad: :mad:
"Unregistered Posts: n/a
Strange tests
I was today just studying carefuly those tests on garysdetecting site very much.
You will notice that the digger of the hole has long hair and is unshaven. Also
if that is not bad enough he uses a tape measure that is in centimeters only and
is green. What type of person would have such a tape measure. I would suggest an
“East European” or worse. I would not take to seriously any results from such tests.
Please excuse my bad English. Very much we hope you like it . Good day from Borat."

WOW !!!!!Borat, man, hold on your horses !!!What kind of attitude is that !!!???
"long hair","unshaven","measuring tape...centimeters only","green.." ..........
"East European" or WORSE !!!!!????? What is the meaning of this !?
WHAT IS THE MEANING OF THIS ??????? THIS IS MORE QUESTION TO ADMINISTRATOR THAN
TO you !!! Are you "unregistered" so smart and brave to split the world like that?
Such attitude leads you to nowhere! Only PROVINCIALS and BACKWARDS has that kind of
attitude these days!

[Carl-NC]

I believe his comments were in jest, not meant to be taken seriously. My response was equally in fun.

- Admin

[robert]

Oh well than...


oh well than....
Sorry!
...............
About the subject here:
I noticed that a lot of models shows indeed good results in the air, but in the
ground ....?
You started very well to check and post results, but one thing is missing...

It would be nice to see simultaneously behavior of the detector on the same
item, at same distance in the air and in the ground. Let's me start first:

For example White's Eagle II, 1cm Ag coin, 28cm in the air, 21 cm in the ground(after 2-3 minutes)....
etc.etc.
The very same experioence(phenomena) with almost all detectors!


......
regards

[Carl-NC]

Good point... I'll add an air test with a single coin, and an air test with another 220-coin cache (same as I buried).

Oh yeah... I have a 20-ounce solid silver bar I can air test, too.

[michael]

Does anyone know if a 2-box detector is capable of detecting a jar of gold and silver coins (say about 1Kg) at a depth of 1.5m?
Alternatively, what about a P.I. detector?
If anyone here owns a 2-box detector (or a powerful P.I.) please could you tell us what sort of depths to expect for various sized objects? Is 1Kg at 1.5m a totally unreasonable expectation?

Mr. Qiaozhi. when you talk about 1 KG it is looked in different aspects.
1 KG gold is really nothing very small size, if aluminium is much more size.
this 1 KG formation is important; be as a bar or be granule type spread at a surface.
with a constant weight, the more spread surface the more detection depth.
as an aside, predominantly the magnetizable metal (Iron) will be detected so more easily and deeper by most of metal detectors. then you never can't detect the same size of detect gold or silver like as iron.
Of course there are some firms claim have made so much powerful PI MDs (5th generation PI) in germany which are able to detect gold at great depth and can discriminate appropriately at these depths,how reliable is their claims, I don't know.
We have made all of those and various tests with our home made PI and got those results.
It can easily detect a tin ; about 100 grams (10 cm × 10 cm × 5 cm) complete buried under soil at 120 Cm.
Our deepest test was at 3 meters depth for an iron box (60 Cm × 40 cm × 30 cm) full of iron and got a weak signal by our PI.

[Qiaozhi]

Mr. Qiaozhi. when you talk about 1 KG it is looked in different aspects.
1 KG gold is really nothing very small size, if aluminium is much more size.
this 1 KG formation is important; be as a bar or be granule type spread at a surface.
with a constant weight, the more spread surface the more detection depth.
as an aside, predominantly the magnetizable metal (Iron) will be detected so more easily and deeper by most of metal detectors. then you never can't detect the same size of detect gold or silver like as iron.
Of course there are some firms claim have made so much powerful PI MDs (5th generation PI) in germany which are able to detect gold at great depth and can discriminate appropriately at these depths,how reliable is their claims, I don't know.
We have made all of those and various tests with our home made PI and got those results.
It can easily detect a tin ; about 100 grams (10 cm × 10 cm × 5 cm) complete buried under soil at 120 Cm.
Our deepest test was at 3 meters depth for an iron box (60 Cm × 40 cm × 30 cm) full of iron and got a weak signal by our PI.

I quite agree. However, the question here was not whether a metal detector was able to detect a huge chunk of iron or tin, but something much more valuable. i.e. a jar of gold or silver coins. It appears that a cache of this type is not so easy to detect as one might have thought.

Carl - Did you have any results for the Hammerhead?

[Carl-NC]

No, I need get the 1m coil running with it. I started the mods several weeks ago, will try to finish it this weekend.

Found my charger for the SD2200... appears to be dead. Battery may be dead, too. Haven't used this thing in a long while. I have another battery somewhere, just have no idea where.

- Carl

[michael]

... the question here was not whether a metal detector was able to detect a huge chunk of iron or tin, but something much more valuable. i.e. a jar of gold or silver coins. It appears that a cache of this type is not so easy to detect as one might have thought...

That's right. I think none of White's, Garrett, Minelab or Fisher can pass your mentioned test target.
in 1996 we made all the tests by White's super Spectrum XLT (by every loop; 23 Cm and 67 Cm magnum force) it couldn't even detect the tin (100 grams; 10 cm × 10 cm × 5 cm) at 1 meter depth. other brands are the same.