hi guys
For my knowledge of where the targets exactly within the diameter of 3 m to 5 m through signals carved on stones, each sign has a meaning, for example, the Roman signals, Ottoman and Jewish, practice example, if you find a picture of monkey on a rock, it means that around the place there is a cave in terms of where the monkey looking,also snake, Scorpion, and so on.
Important information:
There are above the target of three layers: (up to top)
1 - the first layer on the target is a layer called concrete-like mud wisdom thickness of 15 cm to 20 cm.
2 - layer of carbon or carbon sand or coal thickness of 10 cm to 15 cm.
3 - layer of stones stacked on a regular basis over the target.
Then bridge the goal with those extracted soil from the place of the pit.
One more thing:
There are some line locator which use inductive method seeking 3khz for unenergized targets, like cables(which made of copper), would this be able to help?
http://www.fisherlab.com/industrial/...ine-tracer.htm
Please need you experience to help.
regards