Whites Goldmaster Serie Guia Del Propietario página 13

The object of increasing the SENSITIVITY is to get the maximum available depth
4.
from the detector WITH-OUT causing the overload message to appear, which indi-
cates an overload of the circuit.
In addition, any increase in SENSITIVITY adjustment should NOT BE at the
5.
expense of maintaining a smooth and constant THRESHOLD "hum". False signals,
beeps and bops from bits of mineralization, erratic behavior, and lapses in THRESH-
OLD all can be the result of running with too much SENSITIVITY.
6. The use of the VSAT (variable self-adjusting threshold) control will also help to
maintain a smooth THRESHOLD "hum" and will be covered in a later section.
7. While using a steady slow search coil sweep speed, advance the control towards "10"
while maintaining a quiet smooth background THRESH-OLD "hum". If ground
noises are still a problem reduce SENSITIVITY.
8. The TARGET ID capability of the GMX also functions more accurately when the
SENSITIVITY is set at a level which allows for smooth operation. Too much gain
can cause bad ground to distort the proper identification of iron and non-iron targets.
9. Just as a slow, broad search-coil speed will maintain smooth threshold, it will also
allow the search-coil to get clear off of the target with each pass, thus insuring that
the GMT "sees" ground as well as target. This is essential for the accurate operation
of Target ID.
GMX Controls
With the right combination of sensitivity,
SAT, and patience, your GMX can find
gold down to the sub-grain size
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