signal_line
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If you've read what Dell Winders says about this--the target is usually several degrees off from the pinpoint and you need to dig down a ways then recheck the line. I had never known the reason for this. Somebody said it was the magnetic field tilted because of the earth's field. Well, maybe that has some effect.
I noticed this effect when I was messing with the Contraption I am working on. I placed a test target inside our cast iron wood stove. I don't know how thick but something over 1/8" thick metal. The signal line was off about an inch or two.
Assume you are a longs ways back from the target. That is a shallow angle. Any bending is going to make the target appear much closer than it really is. Just an example I was detecting/locating last Fall and got a hot spot maybe 75 feet away. Nothing there. I gave up on that spot. Later I was in the same area came in from a different angle and just by luck I was detecting and found a silver coin. it was right in line from the original hot spot but ten feet further down the line.
This is probably the reason why surface targets are easier to locate--you do not have the bending.
I probably got this wrong. Refraction in water says the target should be closer than it appears. I guess maybe it isn't the same exact effect but there is definitely bending going on. So maybe somebody more knowledgeable can answer this one.
I'm thinking the energy that comes back out (eddy currents) maybe there is some phase change there or the signal travels through the conductive ground. maybe it's the point where the signal enters the ground like Sam "Lobo" Wolfe talked about. he also said there is a hot spot where the signal comes back out after it hits the target and deflects.
I noticed this effect when I was messing with the Contraption I am working on. I placed a test target inside our cast iron wood stove. I don't know how thick but something over 1/8" thick metal. The signal line was off about an inch or two.
Assume you are a longs ways back from the target. That is a shallow angle. Any bending is going to make the target appear much closer than it really is. Just an example I was detecting/locating last Fall and got a hot spot maybe 75 feet away. Nothing there. I gave up on that spot. Later I was in the same area came in from a different angle and just by luck I was detecting and found a silver coin. it was right in line from the original hot spot but ten feet further down the line.
This is probably the reason why surface targets are easier to locate--you do not have the bending.
I probably got this wrong. Refraction in water says the target should be closer than it appears. I guess maybe it isn't the same exact effect but there is definitely bending going on. So maybe somebody more knowledgeable can answer this one.
I'm thinking the energy that comes back out (eddy currents) maybe there is some phase change there or the signal travels through the conductive ground. maybe it's the point where the signal enters the ground like Sam "Lobo" Wolfe talked about. he also said there is a hot spot where the signal comes back out after it hits the target and deflects.
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