
F3 INSTRUCTOR NOTES
Minelab Countermine Division Safety Through Excellence
24
Edge Detection makes use of the coil’s consistent sensitivity around
its circumference to detect the edges of a target. To conduct edge
detection, the coil should approach the suspected location of the
target from a variety of angles.
As the coil approaches the target, the Threshold Tone will change
indicating that the coil is in close proximity to the target. At the
change of the Threshold Tone, the operator should mentally mark the
position on the ground, move the coil away, and approach the target
from another angle.
This process continues until the operator achieves a mental picture of
the target area.
**WARNING**
Extreme care must be taken when mapping the target to ensure that the
coil does not touch the ground (or any exposed parts of the mine) or snag
on any previously undetected trip wires.
For large minimum metal anti-tank mines, it is possible that the area
mapped out may be less than the actual area of the mine.
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