MarkCZ
Well-known member
I made a detecting test swing stick, you know the ones with a target glued to the end of a cut short yard stick. (I actually made a set of them) but this one has two short sticks fixed to the end, one has an iron washer, the other has a copper penny. The two can put swung around to be inline with each other (one over the other).
Now this makes an interesting testing tool, with the discrimination set to well disc out the washer and the targets separated the penny always hits SOLID! but swing the washer over the penny and the two acts as one target, it hit the penny but if you watch the numbers it will be closer to a zinc reading. (and that's with all the detectors I have).
So, metal detectors will hit a good target directly under a bad target but it lowers or raises the numbers.
In my test the washer is pretty much the same size as the penny, not all rusty either, but pull tabs are not rusty either.
If the targets have some spread beside them then detectors with a faster recover speed will help get those, but recover speed doesn't help will targets somewhat stacked on top of each other.
Here in my park and back in the day when the tabs were surface trash most people I guess just "Cherry Picked" it and yes, even doing that they would hit a good number of the easier less hidden copper and silver coins.
That's why its impossible to completely work out an area like a 100 year old park the size of ours, it just has two much stuff, to hide to many things, to many things on the side,
to many huge trees with huge roots,
to many tabs to discourage many hunters.
Now, if you could scarp off 4" of dirt then hunt it, WoW the finds would be amazing I'm sure.
Mark
Now this makes an interesting testing tool, with the discrimination set to well disc out the washer and the targets separated the penny always hits SOLID! but swing the washer over the penny and the two acts as one target, it hit the penny but if you watch the numbers it will be closer to a zinc reading. (and that's with all the detectors I have).
So, metal detectors will hit a good target directly under a bad target but it lowers or raises the numbers.
In my test the washer is pretty much the same size as the penny, not all rusty either, but pull tabs are not rusty either.
If the targets have some spread beside them then detectors with a faster recover speed will help get those, but recover speed doesn't help will targets somewhat stacked on top of each other.
Here in my park and back in the day when the tabs were surface trash most people I guess just "Cherry Picked" it and yes, even doing that they would hit a good number of the easier less hidden copper and silver coins.
That's why its impossible to completely work out an area like a 100 year old park the size of ours, it just has two much stuff, to hide to many things, to many things on the side,
to many huge trees with huge roots,
to many tabs to discourage many hunters.
Now, if you could scarp off 4" of dirt then hunt it, WoW the finds would be amazing I'm sure.
Mark