Sensitivity - Minelab x-terra 305 Instruction Manual

SENSITIVITY

46
The X‑TERRA detectors are highly sensitive and
therefore have a wide sensitivity adjustment
range. It is important to set the correct
sensitivity level for your detecting conditions.
Sensitivity is the detector's level of response
to a target and its environment. Real targets
are interpreted as distinct beeps. Interference
or false targets are interpreted as crackling or
popping noises.
Tiny ferrous junk targets may be detected
when the sensitivity is set to a high level. The
detector will also be affected by minerals in
certain soils and signals from other electric
appliances.
Some experimentation with the sensitivity
may be required for different areas. For
beginners, start with a low setting and increase
progressively.
Decreasing the X‑TERRA's sensitivity may help
stabilise the detector, reducing false signals
and interference, and assisting in differentiating
between signals caused by soil mineralisation
and those of metal targets.
Choose the highest stable sensitivity setting to
ensure the detector's optimum performance.
Do this by holding the coil stationary; increase
the Sensitivity until the detector becomes
unstable; then reduce the Sensitivity by one or
two settings until it is stable.
For beach detecting, a setting below 10 (5 for
the 305) may be required. In high trash areas,
such as modern parks, a setting below 6 (3
for the 305) may be required, especially when
searching for shallow coins.
X‑TERRA 305
Sensitivity range = 1‑10
Factory Preset = 6
X‑TERRA 505
Sensitivity range = 1‑20
Factory Preset = 12