GOLDEN MASK 1 User Manual - Disc. Level (3)
Golden Mask series 1 User Guide
GMD - www.goldenmaskdetectors.com - Golden Mask Official Reseller
6
Golden Mask series 1 User Guide
GMD - www.goldenmaskdetectors.com - Golden Mask Official Reseller
7
Disc. Level (3)
The discrimination knob adjusts the level of border between iron signal and signal from
nonferrous metals. The higher the setting (turning the knob clockwise), the more con-
servative the discrimination.
We recommend lower values of the discrimination for maximum depth and speed. In
trashy areas we recommend setting the knob to 1, since target separation depends on the
discrimination. Some experienced detectorists use a zero value while searching on non-
polluted areas to achieve maximum depth and speed and on target indication they turn
slightly the knob clockwise to identify the target.
There are two versions of the discrimination with the 1-series — bi-tonal and mono-tonal.
At the time of writing this, the GM1 8kHz is mono-tonal (but will be updated shortly), while
the GM1+ and GM1+UK are bi-tonal as default.
It exist a possibility to order the GM1+ and GM1+UK with mono-tone discrimination
upon request. Why should you want this? Because the mono-tone versions are a little
bit deeper. Not to much, but the difference exists and sometimes makes sense.
Bi-tonal discrimination
The 1+ and 1+UK have bi-tonal discrimination as default. This means the detector indi-
cates the ferrous targets with a low frequency sound and the non-ferrous targets with a
high frequency sound. This is useful for general search and if you want to hear the iron
also - sometimes iron targets are giving you valuable information about the place you are
searching on.
If the setting of the discrimination is set to zero, you will hear almost all metals with a high
sound for nonferrous metals. And vise versa - if you set the discrimination to a high level,
some of the non-ferrous metals are indicated as iron. The recommended value is marked
in red, but you have to find the best value for your search by making some tests.
Mono-tonal discrimination
The mono-tone discrimination means that discriminated targets are ignored and you
hear only the response from the non-ferrous targets or those targets that are above the
discrimination level. The higher the discrimination setting, the more targets you stop to
hear and vice versa.
With the mono-tone discrimination the detector is much more silent - it produces signals
only from the good targets, so the amount of noise you have to hear is significantly less
than with the bi-tonal discrimination. You can search much longer as your audition will get
tired slower, especially in trashy areas with lots of iron junk.
It is normal that in this mode the detector emits some short sounds or crackles on iron
targets. Don’t try to eliminate all the sounds from iron targets by rising-up the discrimina-
tion level - you will lose also tons of good targets. We recommend setting the disc. level at
2 or a little below that.
Low Bat.
Low battery indicator. When this indicator lights, you should recharge or replace the bat-
teries.
Charging the batteries
If the LOW BAT. indicator lights, you have to turn-off the detector and charge the batter-
ies. To do this, simply plug the smart charger jack into the charging jack on the back of the
battery box, then connect the charger to the power line. A multi-color LED indicates the
charger action.
After the charging is complete, unplug the charger from the detector, then from the
power line. You may start searching.
Plug ON
No batteries
Charging Progress
Full charged, trickle on
Short circuit
Battery reverse
Repairing Batteries
NTC thermistor short
Battery voltage too low
Temperature protect
RED:BLUE flash show the charger is ready
BLUE
RED
BLUE
RED BLINK QUICKLY
RED BLINK QUICKLY
RED BLINK SLOWLY
BLUE BLINK SLOWLY
RED:BLUE:YELLOW BLINK ALTERNATELY