Filter
Top Products
17
Target Response
(Metal Object Response)
This is the sound given by the detector
when a target is located and not
discriminated (rejected).
In Coin & Treasure Mode, a target that
is highly conductive (e.g. a large silver
coin) generally causes a high tone beep
and ferrous targets generally cause a low
tone beep.
In Prospecting Mode, a target signal
will cause an abrupt change in pitch
and volume of the Threshold sound.
Detections are indicated by sound only.
(Tones, pg. 38)
(Sounds, pg. 46)
Ground Noise
The detector may also produce sounds
when over the ground. These may not
be object signals, but signals caused
by mineralisation in the soil, or signals
from the surrounding environment.
The Ground Balance and Noise Cancel
settings can be used to overcome these
false signals.
(Noise Cancel, pg. 34)
(Ground Balance, pg. 40).
Highly mineralised
soil may produce false
signals and distract
from real targets.
A SIMPLE DETECTING EXERCISE
16
DETECTOR AUDIO
Don’t worry if the detector is not
producing a sound over the nail - this
is because the detector begins in the
default Pattern 1, a setting which rejects
signals from common junk targets,
including ferrous targets.
Note: If you are getting signals from a clear patch
of ground, there could be buried metal objects.
Try fi nding another area.
If the detector is making popping and
crackling sounds and displaying numbers
when the coil is not over one of the metal
objects, try reducing its Sensitivity (pg. 30).
Once stable, the detector will sound and
display numbers only when the coil is
passed over a target.
Buried metal objects are referred to as
targets. Before attempting to pinpoint
or recover real targets, it is important to
understand how to interpret the audio
and visual signals of the detector.
A good way to become familiar with
detecting is to test the detector with a
range of metal objects. This exercise is
a simple lesson on how the detector
interprets metal objects.
Gather a collection of different metal
objects, e.g. various coins, gold and
silver jewellery, a nail, pull-tab, brass
button and aluminium foil.
Take the detector outdoors, away from
known electro-magnetic fields or metal
objects.
Lay objects in a line, sufficiently spaced
apart to allow the coil to pass between
the objects.
Pass the coil across the objects, one
at a time, and observe the LCD and the
sounds of the detector as it detects
each object.
This test exercise may be used when
adjusting the settings of the detector
(Sensitivity, pg. 30, Volume, pg. 32,
Threshold, pg. 36, Tones, pg. 38).
‘Blanking’ (No Sound)
Threshold
Threshold
Normal Signal
Threshold (Background sound)
This is the background ‘buzz’ produced
by the detector, used to help distinguish
between desired and undesired objects.
Blanking
When a rejected target is detected, the
Threshold sound ‘blanks’ (becomes
silent) indicating that a target is located
underneath the coil, but has been
rejected by you. Blanking is a useful way
of distinguishing between desired and
undesired targets.