GOLDEN MASK DEEP HUNTER Pro3 Instruction Manual page 6

GM Electronics Ltd.
6. Search for metal objects with round (hand) antennas
When the terrain does not allow to search a "frame" coil, Golden Mask Deep Hunter
Pro3 can be used with round hand-held search coils (antennas) mounted on a special
stick. Search with such antennas does not differ from the search with a "frame".
Since the detector is not designed to detect coins and small metal objects, with "hand"
antenna should not be expected a detection of such objects. The main purpose of the
round coil is to replace the "frame" in inaccessible areas and provide an opportunity for
individual work (without assistant).
The movement with "hand" antenna should be done very slowly. Unlike traditional VLF
metal detectors, using the principle of inductive balance, Golden Mask Deep Hunter
Pro3 can detect metal objects without motion. The movement is only necessary to
identify the type of metal, a speed of about 1 m/s is sufficient for the discrimination
system to function properly. The search height above the ground surface with "hand"
antenna must be 5 cm or more. If you hold the coil too low or touch the ground, you
will experience faulty signals.
All activities recommended for the use with antennas of type "frame" apply to the work
with "hand" antennas.
7. Indication of the presence of a metal object in the antenna area
The signal from a metal object, located in the area of the search coil is indicated by
increasing the frequency of the sound signal (the crackle).
Most weak signals an operator is able to register, are captured by doubling the preset
frequency of the sound with the "CRACKLE On/Off" knob. This is perceived accurately
by the human ear and therefore it needs to be set very precisely, so that the sound
frequency without the presence of a signal to be only a few Hz (sounds like crackles).
Each "signal" has "start" and "end". Golden Mask Deep Hunter Pro3 has a very well
expressed "zone" indication from deeply buried metal objects with the use of a frame.
The length of this "zone" is a guide to the depth/size of the metal objects. When this
length is greater than the size of the search antenna and has an expressed peak in the
Golden Mask Deep Hunter Pro3 – Instruction Manual
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