Cache Test

[Tinkerer]

Build a detector to find the cache

Thanks Carl for the info. There must be some continuity between the coins that hels. On the other side possibly the fact that any coin or batch of coins that is not electrically connected to the others might produce a eddy current that is not in phase with the others and therefore partly cancel some eddy currents.
I took the worst kind of scenarios.

I am sure that it would only take very minor mods on the Hammerhead , for it to be able to locate tha cache. Mainly a large diameter, low capacitance coil and slight modifications on the preamp.

Why dont we give it a try?

Tinkerer

[Esteban]

Cache test (George 111 halfpenny's) in UK with several brands:

http://www.staffsmetaldetectors.co.uk/depth_test.htm

[Qiaozhi]

Cache test (George 111 halfpenny's) in UK with several brands:

http://www.staffsmetaldetectors.co.uk/depth_test.htm

This is not a cache test. It is a relatively trash-free test area, with individual coins buried at different depths.
Some interesting (and perhaps surprising) results.

[Esteban]

Carl, do you clean previously the area of your cache test?

[Unregistered]

Hi Guys!!!

No problem! Simply use this...

http://www.garysdetecting.co.uk/bigcoil.htm

[Carl-NC]

Carl, do you clean previously the area of your cache test?

Oops, sorry, yes, I cleared the area.

[Unregistered]

Re big coil test above

Is this XP detector that I never heard of before detecting the hole and how much deeper that Nexus does it go.

[Unregistered]

Detect 24" container of coins

Hi, I was wondering if a Nautilus 2b was tested to try to pick up the silver coins. I know in all-metal mode they will pick up civil war relics at that depth. Thanks for trying the test !!

[Unregistered]

Arado 120B?

Carl, I bet that an Arado 120b or 130 can find that cache! Problem is that not very many are here in the states. I know of only one collector of these machines. Maybe I can convince him to duplicate Gary's Cache test and report on the resulsts?? Joe

Guess again, as I have one. What they "hit" best is iron. The practice of its deepest conductive target finding is that a target is so deep that there is no meter deflection, indicating to you its beyond the detector's ability to identify.
So naturally, you dig it. I've never found coins as deeply with it as many detectors, even mid priced ones.
On your hoard test did you try a positive offset on the ground balance? Or, in the case of the 6000di, reverse discrimination?
I can affirm from experience at the beach digging up aluminum cans at a measured 18 inches with a CZ using a 10.5 inch loop-and they hit very hard.
I suspect disturbing the earths natural magnetic field to bury the target is a part of the problem. I've dug many deep coins lost for a long time that I could not hit in a test garden of freshly buried coins, that would give no signal, or read as iron, and they were considerably shallower than my natural deep finds.

[Unregistered]

To dissolve Gold

I should clarify my statements... we are talking about gold treasure, i.e., coins, jewelry, etc., that has been recently lost. Recently meaning 100's of days to 100's of years. We are talking about average natural conditions. We are not talking about millions of years, high pressures, or boiling hot temperatures.

Yes, I know gold has an oxide. Yes, I know gold will dissolve in aqua regia. Yes, I know seawater has dissolved gold in it, on the order of 6 nanograms per liter. This did not come from sunken treasure. BTW, gold in seawater is not in ionic form.

I will consider scientific evidence and experiments that show buried or sunken gold produces ionic fields. I would not accept Mineoro's word on this, as some of the answers they've given me on other questions were completely bogus.

I will consider scientific evidence and experiments that show buried silver and copper produce ionic fields which enhance detection, resulting in the popular "halo" theory. Tinkerer gave a very interesting explanation, which deserves investigation. I have strong doubts that any such ions would have any measurable effect on a metal detector, but it's worth looking at.

And so I started this very experiment about 2 weeks ago.

- Carl

It takes a mixture of Hydrochloric and Nitric Acids. Hydrochloric alone will not work.

[Unregistered]

Cache Test

I'd bet a box of RED DOT COHIBAS that a GS-5 using a LARGE Minelab loop, or a GP-3500 or 4000 will hit the cache. [try both a concentric and a DD]
Carl, on the detectors you used that had a threshold in whatever mode, did you experience any "nulls" over the cache?
And in your next test take a CZ-70Pro, disc on "zero" sens at max, and audio set to max and let us know the results. I know from experience that full audio will give you an ungodly amount of ground noise, but you will also hit coins at that setting that you/detector will not hear at "normal" audio setting of "5". And YES it does take some {a lot} of experience to tell the difference between a target, and ground noise. It may or may not hit the cache, but it would be interesting to find out-and throw in a DMC-2B with 15"loop; Georgi Chaushev SAID IT IMPRESSED HIM MORE THAN ANY OTHER U.S. DETECTOR.

[Lost in NC]

ooh i know i know what will work!

Ok Carl you have been trying all of your detectorson this experiment, why not take this opportunity to do a blind run on all those LRL's that you have been hording. heck i live in Benson NC i could go there and se if those rod really work since i dont know where its buried. you can even blind fold me so i dont know where you live. hahaha

Aaron

[Carl-NC]

C'mon over!

[Lost in NC]

you know to be honest with you guys i have been in the field THing with a guy who uses these expensive LRL's . what is the old saying if it walks like a duck...? guy was holding this rod over his head and had to spin it around a few times then blame the rest of us for burned out gold signals. hahaha get that we burned the signals out of any gold with our detectors. im no genius and certianly green when it comes to circuts but, isnt gold used because it it conductive and durable in electronic stuff? so how the heck can you burn out a gold signal? hahaha maybe i will invent a benie cap LRL sends a jolt of electricty to ones cerebelum when it passes over a good hit.

[J_Player]

Have you no compassion for ghosts?

Errr... Mr. Lost....

Have you considered that there may be spirits of the ancient guardians of gold treasures still floating in the ion fields of the ether who take offense at man-made magnetic fields intruding in their domain of guardianship? Is it possible that these LRL proponents are victims of the wrath of the floating dead spirits who curse on them every time a non-believer turns on one of them dang VLF or PI contraptions and spoils their ionic fields? For shame! ...errr.. wait, there is no political incorrectness in bashing ancient dead floating spirits. ... at least not yet.

Doh.... nevermind....

J_Player