White’s Electronics Goldmaster GMT - Manual (Page 18)

16
Chapter 5 GMT Searching
Searching
Pinpoint Technique
Due to the wide scan nature of elliptical searchcoils
it can be difficult to locate small targets under the
physical center of the loop. Use an "X" marks the
spot technique as shown in the diagram to identify
the portion of ground the nugget is in. Because most
nuggets are too small to isolate to an exact location
as in coin or relic hunting, remove the soil under the
center of the "X" until the target is no longer in the
hole, but in your pile of dirt. Techniques for exam-
ining the pile of dirt are discussed later in the
manual. (page 20)
Again, the procedure is to sweep over the target
from side to side noting the side to side center. Then
turn 90 degrees and sweep the coil side to side
noting the center from this new direction. "X"
marks the spot that you need to dig. You can prac-
tice with a small pieces of lead or gold on top of the
ground to become acquainted with the technique.
It's a good idea to have a magnet handy, preferably
in the handle of your digging pick, to pull iron out
of the dirt pile. It will speed up your recovery time.
It will work on small almost invisible hot rocks too.