Garrett Metal Detectors Master Hunter CX Plus - Manual (Page 20)

www.garrett.com  Master Hunter ® CX Plus Owner’s Manual 
rienced success in using the Discriminate mode to
locate large nuggets, the detector will respond more
effectively to tiny nuggets in the All Metal Mode.
Heavy ground mineralization could also limit depth
of detection in the Discriminate Mode.
Hot rocks, a problem for any electronic prospector,
can be described as a concentration of non-conduc-
tive iron mineral that causes a detector to recognize
it as metal.
When you suspect that you have a signal from a
hot rock, locate the target precisely by pinpointing.
Then move your searchcoil away and switch to the
Discriminate mode by pressing the DISC touchpad.
Both Multi-Range Discrimination controls should
both be set at zero. Now scan the target again, try-
ing to keep the exact same distance. If the sound
does not change, decreases or becomes silent, your
target is a hot rock. When this happens, ignore the
target, press ALL METAL touchpad and continue
searching.
If the signal increases at all in the Discriminate Mode,
you should investigate this target more closely and
identify the metal causing your audio to increase.