CS-770 GB
5
Determining the Target Size and Depth
An operator who is familiar with his instrument will be able to do an excellent job of determining
object size, shape and depth before he digs. The technique is learned from careful analysis of the
audio signals coming from the detector. Each time a signal is heard, listen for any peculiar
characteristics it may have ; determine over how large an area you get a detector signal ; and try to
"outline" the object before you dig. Listen for the sharpness or dullness of the signals and determine
the magnitude of strength of the signal. A coin will have a sharp signal, a nail a fuzzy signal.
RECOMMENDATIONS FOR USE
Treasure hunting can be a profitable and rewarding hobby, if approached in a patient and diligent
manner. Time spent researching to locate a worthwhile site for a search can be time wasted if your
search is hasty and erratic.
To achieve maximum results, it is important, then, to decide on your approach to each particular
site, in advance of the actual search.
Tactics will be decided by the type of site - it is more profitable to scan a small area thoroughly than
to conduct a haphazard search of the total site. However, when the site is too far away for you to
make several return visits, a plan should be adopted which gives maximum site coverage, at the
same time as indicating the most likely areas for detailed search.
One method is to divide the area into large squares of a ’criss-cross’ search pattern, starting along the
left hand perimeter, search in a straight line, marking the location of any finds with small sticks,
until you have covered the length of the site. Then, moving approximately ten feet (3m) to the right,
search in a straight line parallel to the first line of search. This pattern should be repeated until the
right hand perimeter is reached ; then follow a similar pattern ACROSS the tracks of the first lines
of search. (See diagram 4).
It quite often happens that where one find is made, other finds will be made in the immediate
vicinity. Accordingly, places having the highest density of markers, placed where finds were made,
represent the most likely spots for further finds.
The detailed search is made by marking out strips of a width determined by the sweep of the
detector, and moving forwards the approximate diameter of the search head after each sweep until
the ’strip’ has been completely covered. The adjacent strips are covered in a similar manner, until the
complete area has been thoroughly searched. (see diagram 5).
Wooden pegs and string are ideal for marking out areas, but very often natural land marks such as
trees, rocks and plants can, with practice, prove just as effective.
