Interesting test with a dime between two iron square cut nails

[Tony (Michigan)]

The other day I put a dime on the sidewalk and put two iron nails on each side of it. I could hit the dime swinging my coil across the length of the nails but could not hit the dime
swinging the coil in the direction of the length of the nails.
Have you noticed metal detectors on YouTube being showcased for their skills with a coin next to an iron nail. They never swing the coil along the length of the nail. It is always across the nail to hit the coin.

They also put a coin and iron nail in one hand and move it in front of the coil always with the nail pointed up. You ever wonder why you never see them wave it across the coil with the nail pointing left to right with the
coin next to the nail in their hand? It's because it won't pick up the coin that way. It's a cheap trick.

Now then, the Tesoro can slightly give a hit on the dime up but at about a 45 degeee angel to the length of the nails. It really picks up the dime well swinging the coil perpendicular to the length of the nails.
You might have different experiencs with your Tesoro and how it is set up.

What I would love to see, and maybe I'll have to do this myself is this:

Put a sheet of plexiglass on top of a 5" deep open box. put some iron nails on the plexiglass. Under the plexiglass put a coin and see how well it hits the coin. Seldom are coins right next to iron nails in the ground. Sometimes they are.

 

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[Electricfrontporch]

When I set up me test garden I did four holes with coins and nails at staggered depths.
It's relatively easy to hit the coins if you hover over them , knowing where they are.
Entirely different story if you sweep over those four at a normal "detecting " pace/speed.
I sweep that area to refresh my hearing for the little hits and pops coins make when masked by iron/trash.

The lengthwise sweep they refer to as "down the barrel"
That's the test that lets you know the machine is a keeper for hunting in iron.
Look into Monte's nail board test. Very helpful in performance testing.

 

[luvsdux]

I've said it a number of times and here goes again. All metal setting will pickup the whole works so if you can stand the trash, you'll always find the goodie as well.
luvsdux

 

[Tony (Michigan)]

When I set up me test garden I did four holes with coins and nails at staggered depths.
It's relatively easy to hit the coins if you hover over them , knowing where they are.
Entirely different story if you sweep over those four at a normal "detecting " pace/speed.
I sweep that area to refresh my hearing for the little hits and pops coins make when masked by iron/trash.

The lengthwise sweep they refer to as "down the barrel"
That's the test that lets you know the machine is a keeper for hunting in iron.
Look into Monte's nail board test. Very helpful in performance testing.

How do I find Monte's nail board test?

I know most nail board tests to not have two good sized iron square cut nails up against the dime. My Tesoros can hit the dime between the two nail going across the nails, never in the direction of the nails.

 

[Electricfrontporch]

He has a website I believe? Can't remember it off hand.
Just type it into the web browser and you should find a picture of the setup and plenty of links to posts on it.

The coin in between two nails is definitely a tough one!

 

[Mo Diggins]

How do I find Monte's nail board test?

Performance Testing for Nail Infested Sites

 

[Mo Diggins]

I see people sweeping over concrete sidewalks, driveways, and garage and basement floors. In this area, and I suspect most, code dictates they contain steel remesh typically 1-1/2 to 2-1/2 inches down. Just something to account for if you're testing on concrete.

 

[Treasure_Hunter]

The other day I put a dime on the sidewalk and put two iron nails on each side of it. I could hit the dime swinging my coil across the length of the nails but could not hit the dime
swinging the coil in the direction of the length of the nails.
Have you noticed metal detectors on YouTube being showcased for their skills with a coin next to an iron nail. They never swing the coil along the length of the nail. It is always across the nail to hit the coin.

They also put a coin and iron nail in one hand and move it in front of the coil always with the nail pointed up. You ever wonder why you never see them wave it across the coil with the nail pointing left to right with the
coin next to the nail in their hand? It's because it won't pick up the coin that way. It's a cheap trick.

Now then, the Tesoro can slightly give a hit on the dime up but at about a 45 degeee angel to the length of the nails. It really picks up the dime well swinging the coil perpendicular to the length of the nails.
You might have different experiencs with your Tesoro and how it is set up.

What I would love to see, and maybe I'll have to do this myself is this:

Put a sheet of plexiglass on top of a 5" deep open box. put some iron nails on the plexiglass. Under the plexiglass put a coin and see how well it hits the coin. Seldom are coins right next to iron nails in the ground. Sometimes they are.

I see you list Minelab Explorer in your detectors, any time you hit a null on a Minelab BBS or FBS detector you should always turn 90 degrees and re-sweep the target, if there is another target there the Minelab will show it, I have found several gold rings this way.

 

[Tony (Michigan)]

I see people sweeping over concrete sidewalks, driveways, and garage and basement floors. In this area, and I suspect most, code dictates they contain steel remesh typically 1-1/2 to 2-1/2 inches down. Just something to account for if you're testing on concrete.

They didn't do that on this sidewalk. Just used fiberglass. It's out in the country with less codes and done many years ago.

 

[HighVDI]

Most older sites don't have rebar in their concrete. Newer stuff almost always does.

The whole picking up a signal one way, but not the other proves that gridding is the way to go. Not just criss crossing, but 45 degrees too. I always thought it was bogus but it is absolutely a real thing.

 

[Tony (Michigan)]

Most older sites don't have rebar in their concrete. Newer stuff almost always does.

The whole picking up a signal one way, but not the other proves that gridding is the way to go. Not just criss crossing, but 45 degrees too. I always thought it was bogus but it is absolutely a real thing.

Which brings us to this: When I get a good signal, I have found that by swinging the coil one direction over the target,
then circle around the target, if it starts to break up or disappear, it, at least for me so far, has always
been a rusty square cut nail.
One day I hope to find that elusive coin that is right next to an iron nail with a Tesoro. You are right about the 45 degree angle as
I have proven in my own tests.