Air tests with mercury dime - five detectors

[oldbill]

Tom, we should have been using the word "Leaching" instead of halo! gold, silver iron all leach when in salt soil. Bill

 

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[Digger]

I think the name "Halo Effect" is an accepted term used to simply describe the phenomenon of a coin being easier to detect after it's been in the ground for some time. It's not a term trying to explain the reason, only the end result.

Point is it(halo effect) happens in spite of the "experts" attempts to scientifically explain that it's impossible.

 

[kdismuke1]

I AGREE WITH EVERYONE: kyle

 

[relicpro]

You should get deeper with the Cibola. I use a Vaquero and a silver dime air tests at 14 1/2 inches easily with it.
Robert

 

[ivan salis]

humm for a cheaper type mchine

 

[ivan salis]

humm for a 250 dollar machine WITH BOTH AUTO AND MAUNAL GROUND BALANCE wonder why no one said anything about the BOUNTY HUNTER LAND STAR ? its older style knobs allow for finer control than the more "modern" notch blocks do. --some times old school is good

 

[crazyman]

Air tests are only good if you live in an area with zero ground minerals, all the coins are flat in the ground, no other targets are close to the coin and you hunt with zero disc. and max sensitivity. I have a Whites IDX Pro with Mr. Bills mods that will air test a silver dime all day long at 12 inches but in my ground 6 1/2 inches is about max. Copper pennies a bit deeper. These are not freshly buried coins either. These in ground depths in my ground are max whether I'm using a Fisher CZ, Minelab Sovereign or Tesoro Bandido. Ground mineralization is the deciding factor on how deep your detector will hit targets in the ground. Frequency and filter design play a big part in mineralized ground.