Bounty Hunter Land Ranger Owner's Manual page 33

pressing the ALL METAL AUDIO LEVEL (-) touch pad. This will
lower the sensitivity and narrow the detection field, thus minimizing
detection of metal objects surrounding the desired target.
DISCRIMINATION mode
If you are relic hunting in DISCRIMINATION mode, you want the unit to
detect all types of metal, including iron objects. Set the detector to accept
all metals. See the DISCRIMINATION Mode, To accept all metals section of
this manual for instructions on how to set the detector to accept all
metals. If your are encountering a lot of nails, set the iron discrimination
level to IR 2 or IR 3.
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