CallMeGrey
Forum Supporter
I've gotten permission to MD a yard with a house built in the mid 1800's. I've been running into old rusty nails and bolts and the issues that come them. When I pass over an old nail in the ground I get readings all over the scale. So I tried a test this morning with my Vanquish 540. I put an old rusty nail next to a dime about 2" apart. With the nail pointing north/south and me swinging east/west, the detector easily picked up the dime without the usual high tone clatter from the nail. But when I swung N/S it didn't pick up the dime at all (and again no 'clatter').
So my questions:
1.) Does all the false readings from a nail in the ground come from the surrounding mineralization from the nail? I thought it was caused by the detector hitting the 'edge' of the range when passing over a nail.
2.) I understood that the best way to confirm a solid coin signal was whether it was repeatable swinging 360 degrees around the target. But it doesn't register when I swing parallel to the nail. So I would be losing the signal half the time.
I need to get better at this stuff! The yard has turned up an early 1800's button and I'd really like to find some old coins there. But dealing with the rusty nails and bolts has been difficult for me so far. I know this is going to be a great learning experience though. Any suggestions?
So my questions:
1.) Does all the false readings from a nail in the ground come from the surrounding mineralization from the nail? I thought it was caused by the detector hitting the 'edge' of the range when passing over a nail.
2.) I understood that the best way to confirm a solid coin signal was whether it was repeatable swinging 360 degrees around the target. But it doesn't register when I swing parallel to the nail. So I would be losing the signal half the time.
I need to get better at this stuff! The yard has turned up an early 1800's button and I'd really like to find some old coins there. But dealing with the rusty nails and bolts has been difficult for me so far. I know this is going to be a great learning experience though. Any suggestions?