GLOSSARY OF COMMON TERMS
56
USER INFO
7
Halo Effect After a metal object has remained undisturbed in the soil for a
considerable amount of time, a diffusion occurs around the object.
This has the effect of the object appearing to the detector to be a
larger size.
Hot Rocks A hot rock is an individual rock which has a particularly high degree
of mineralization as compared to the average ground around it. Due
to this high difference, the detector does not have the opportunity to
ground balance on the individual rock so therefore gives a false signal.
Interference Electricity or radio waves in the area being detected can cause
instability or chattering of the detectors threshold.
The types of interference commonly occur due to power lines,
underground cables, radar, other detectors or climatic conditions like
thunderstorms.
Mineralised Ground Most ground contains certain minerals which can cause false signals
to be given by a detector. Heavily mineralized ground requires
different ground processing than does neutral or lightly mineralized
ground (see Ground Balance).
Ground containing heavy salt concentrations require entirely
different processing again (sea salt).
Monoloop Coils Monoloop coils are the style of coil where the multiple strands of
wire are wound in a single loop around the circumference of the coil.
The field of search of Monoloop coils tend to be cone shaped.
Non - Ferrous Metals Metals not containing significant levels of iron. Non-ferrous metals
are non-magnetic such as Gold, Silver, Copper, Brass, Lead or
Aluminium.
Pinpoint The method of locating the precise location of a target prior to
digging. Pinpointing uses the design of the search coil windings to
determine the exact position of the detected target.
RX RX refers to the response or electromagnetic field which is received
back by the coil and is used by the control box circuitry to detect a
metal item in the ground.
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