Step 1 Mapping The Target - Minelab F3Ci Operation Manual

Figure 19: Sweeping procedure
Depth of detection depends on target distance from the coil, not
depth of the target under the ground. Therefore, the coil should be
swept as close to the ground as possible to maximise detection
depth (local Standard Operating Procedures take precedence).
When a target is initially detected in Detection Mode , an operator
should stand in place and continue to sweep the F3Ci beyond the
target in an attempt to find clear ground. In doing so the operator will:
a. immediately gain an impression of the size of the target prior to
commencing the pinpointing procedure; and
b. confirm the target is not in close proximity to a second target
thereby avoiding a possible booby trap.
NOTE
Minelab recommends a half coil (100 mm/4 inches) overlap on
successive sweeps as an operator moves forward in a mine lane.

4.4.1 STEP 1 Mapping the Target

Having detected a target using the sweeping procedure in detection
mode and obtained a rough idea of its size and location, the location
of the target can be 'mapped' using the F3Ci's 'Edge Detection'
technique.
F3Ci Operations Manual
31
Direction of
Movement
Mine Lane