GOLDEN MASK Deep Hunter Pro 3 Instruction Manual page 7

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GM Electronics Ltd
Another way for individual work with a "frame" type search coils is
for the operator to stand/walk inside the frame holding both belts
while controlling the detector.
WARNING!
The use of this method, and/or any "entry" of the operator
or another assistant inside the "frame" of the Golden Mask
Deep Hunter Pro3 detector while in working mode can suffer
adverse effects caused by the very strong electromagnetic
field that can lead to serious health problems and/or injuries!
If you do not have an assistant, "dragging" of the search coil on a
non-metallic sled (PVC, for example) is recommended. The sled
must provide a constant height (about 15 cm or more) of the
frame from the ground surface. The search should always begin
with a brief pressing of the "RETUNE" button (the same is
recommended to be carried out periodically during the search) in
order to maintain maximum stability and sensitivity.
The movement of the antenna should be carried out in parallel
bands that overlap by up to 30% in order to not miss any portion
of the search field. The speed of movement should be about 1
yard per second.
6.Search for metal objects with handle-mounted coils: When
the terrain does not allow searching with a "frame" coil, Golden
Mask Deep Hunter Pro3 can be used with handle-mounted
round search coils. Search with such antennas does not differ
from the search with a "frame". The round coils are much more
sensitive to identifying small objects and should be used for such
searches. In addition, the purpose of the round coil is to replace
the "frame" in inaccessible areas and provide an opportunity for
individual work, without an assistant. The movement with round
coils should be done very slowly.
Golden Mask Deep Hunter Pro3 – Instruction manual
7