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signal.Ground noises usually give a broad uneven signal when the coil
is swept from different directions,and often may only give a signal
from one direction and no signal on the return sweep.
*If you are not sure if the sound is ground noise or a target signal you
should always investigate.Scrape a shallow hole about 30mm deep over
the suspected target.Sweep the coil over the hole at the original ground
level.Do not dip the coil into the hole.If the signal has decreased in
volume or is less defined it is probably ground noise.If the signal
remains the same.or becomes louder,it likely a metallic target.if you
are still not sure make the hole deeper and repeat the process.
*A“halo effect”,which may be built up around a buried metal
object,makes the object appear to be larger to the detector than it
actually is.This will be reduced once the target is disturbed from its
position in the ground(e.g.a small object,detected at a substantial
depth,may be more difficult to detect once disturbed from the ground
and lying in the loose dirt.If the object is re-buried the “halo
effect”will not be present).
*Do not try to eliminate what might appear to be a faint,isolated
ground noise by balancing the detector over the target;you may be
“balancing out ”the target response from a deeply buried metallic
target.It is better to Ground Balance around the target,without going
across it,Then switch to Fixed and try Pinpointing.
*Dig all target signals,even in previously detected areas.The MCD
Series have superior ground balancing and depth so it is possible to
find new targets in well-worked areas where other detectors have been
unable to cope with the high degree of mineralisation an/or salt.
*In some mineralised soils a response may be received from a
concentration of orange/reddish dyke material or clay.Remember,a
metal target will get louder by moving the coil even centimetres closer.
*If detecting areas of extremely variable mineralisation detect along
