EML 100 Marker Search Pattern
A search pattern should be used when locating markers. All marker locators
are dependent on the type of marker, depth of marker, and external noise as
to how broad of a footprint that can be detected. The highest probability of
locating a marker of unknown type and depth requires a tight search pattern.
Swing the locator in a comfortable 2 to 2
1
/
2
foot arc; keeping the antenna
portion level to the ground. The speed of the swing and walk should be
moderate to allow full detection potential. For best results, perform some
sort of zigzag pattern as shown below. The edges of the swing should
come to the same point in allowing 100% coverage of the area. (See
Figure 28)
A wider search pattern can be used, but the larger the spacing between
passes the greater chance of not locating a marker.
A benefit of using the EML100 in scan mode is that the search path can be
done once tightly to insure that all markers are found and identified. Compared
to a marker locator only able to detect one marker type at a time, the search
pattern would have to be repeated for each marker type.
9
Fig. 27 - Mode Display Samples
Fig. 28 - Search Patter n
