12
Examine trees for bench marks and bits of embedded
barbed wire. Hold the locator parallel with the direction of
the wire.
Figure 20: Tracing Pieces of
Barbed Wire Embedded in Trees
Searching Areas along a Chain Link Fence
Searching in the vicinity of a chain link fence requires a reduced sensitivity setting and some
control over the orientation of the locator. Position the locator horizontally with its long axis
perpendicular to the fence as illustrated in Figure 21. This insures that the upper sensor is
kept away from the fence.
Figure 21: Searching in the Vicinity of a Chain Link Fence
Perform the search by slowly moving the locator forward along the fence while also moving it
to the right and to the left. This technique allows you to search an area several feet wide as
you move forward. Listen for an abrupt drop in the signal (as shown by the null in Figure 22)
that will occur when the lower sensor, located 1-1/2 inches from the end of the locator, is
directly over the stake. Any variation in the position of the locator will produce an abrupt rise
in the frequency of the signal.
