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DISCRIMINATION > EXPERT / MENU
SENSITIVITY
95
SALT SENS
9
Determines the device’s sensitivity level from 0 to 99.
The most commonly used sensitivity levels range from 70 to 90. Reduce the level in
trashy areas or close to power lines, fences, radio-relay stations, etc.
Do not test your device indoors as there is considerable electromagnetic and metal in-
terference in urban environments (EMI).
Sensitivity
(general sensitivity)
In addition to the general sensitivity setting, the «SALT SENS» setting has the advan-
tage of reducing false signals, typically linked to seawater, unlike the general sensitivity
which acts on all targets and all signals. When searching wet sand or surf, always use
the SALT SENS setting as a priority rather than the general sensitivity. The general sen-
sitivity should be reserved for cases where the instabilities come from electromagnetic
interference (EMI).
Adjust SALT SENS from 1 to 9 (9 being the highest sensitivity level).
Salt Sens
(Salt water sensitivity ; prg DIVING - BEACH - BEACH SENS)
If EMI is a problem, remember to start with a frequency scan first (see Freq Scan). When using
lower levels of SALT SENS, low conductive targets that register around TID 30 may also be
slightly attenuated, this setting will not effect higher conductive targets.
DISC IAR
THRESHOLD
2
2
Programs 8 GOLD FIELD and 9 RELIC FIELD use another discrimination method, called
IAR (Iron Amplitude Rejection). This allows rejection of ferrous items according to their
distance from the coil.
0 = no rejection 3 = Shallow Ferrous rejection 5 = Shallow and deeper Ferrous rejection
IAR Discrimination
(Prg. 8 / 9)
Gold nuggets or relics items buried deeply in mineralized ground can generate a similar signal to a ferrous
item, so in this case it is better to reduce the IAR discrimination level.
Discrimination IAR expert mode : Press (3sec) and enter into Notch mode (description page 16)
This feature is used to set the amplitude of the background sound threshold.
Threshold will go silent when passing over rejected targets.
Adjust it from 0 to 20.
The tone of the Threshold (and the deepest / smallest targets) can be modified from 150
to 603 Hz. Press (3sec) and adjust it with and .
Threshold
(Only with Pitch mode ON)
Silencer
SILENCER
2
A few large iron objects or unusual shapes are often more difficult to discriminate. Iron
objects often generate a few audible remnants of broken or inconsistent signals (crack-
ling). Increasing the silencer applies a filter which eliminates the crackling caused by
ferrous items.
• Levels 2 to 3 are a good compromise If you want more ferrous rejection, don’t forget
to increase the B.cap rejection (beer caps) this will also help reject ferrous cartridges,
ferrous rings and some larger mis-shaped ferrous.
• With settings below 2, it improve performance on mineralized ground.
