White’s Electronics MXT Pro - Manual (Page 33)

too fast, about 2 seconds per pass from right-to-left and two
seconds returning from left-to-right. Overlap your sweep
path 50% so that you won’t miss the small and/or deeper
metal targets. Targets to deep or small to achieve good
tone identification will sound at the threshold level tone.
9. Once a solid repeatable beep is located consult the
display information. Squeeze and hold the Trigger on the
handgrip and “+” the search coil over the area to pinpoint
and note how deep you will need to dig listed on the display.
10. Ground Mineralization:
A. For Salt/Alkali environments proceed exactly as
above only with the TRAC toggle in the Salt position.
B. For areas with an abundance of decomposed man
made iron (which may make the MXT Pro difficult to op-
erate), proceed exactly as above only once you pump
the loop over the ground in the Ground TRAC setting,
then set the TRAC control to Lock.
The Relic MODE also provides good general purpose
searching for a wide variety of targets and environ-
ments although it will require greater patience to use
in populated areas compared to Coin & Jewelry as the
Relic MODE is designed to locate a wider variety of
metal alloys (lead and brass). As the name and target
labels imply, the Relic MODE is designed with encamp-
ments and abandoned homesteads in mind as the
primary goals, however, these settings and features
will also respond to any better alloy including common
coins and any other item made of a valued metal alloy.
In the primary Trigger (on the hand grip) center posi-
tion, any target accepted by the discrimination setting
produces a higher pitch beep and any metal target
rejected by the discrimination setting produces a lower
pitched beep. Uncertain targets may respond in-be-
tween with the Threshold pitch.
The 1st option a user should consider is the selection
of an appropriate TRAC toggle setting for the area.
The Ground setting and Salt settings should be almost
self-explanatory. If you are searching in typical ground,
use the TRAC Ground setting. If you are in a salt water
or desert alkali ground condition, use the TRAC Salt
setting. Highly fertilized farm fields (iron & ammonium
nitrate/oxides) when wet may also benefit from the
SALT setting. When to use the Lock setting can be
less obvious. If it seems like something is wrong with
the detector, wildly fluctuating Threshold hum (only
during sweeping the search coil), try the Lock setting.
If the detector smooths out and starts operating more
predictably, you made the correct choice. If there isn’t
any change, you may need to return to the Ground or
Salt setting and either reduce the Gain control coun-
terclockwise and/or switch to the 1 TONE and increase
the Dual control (Discrimination) clockwise and try
again. 1 Tone suppresses the audio of rejected targets.
Standard Relic mode 2 Tone produces a low pitch tone
for rejected targets. An area littered with man-made iron
would dictate the Lock setting. On the other hand an
area littered with small aluminum foil would not, such an
area would dictate Reduced Gain and/or 1 TONE with
higher Disc settings.
The 2nd option is Gain. Some areas require, and some
operators just prefer, the more predictable operation
reduced Gain settings provide, where as others prefer
to push Gain to the limits of their patience to find the
deepest targets. There is a point of diminishing returns
either indicated by the display OVERLOAD telling you
to lift the loop due to a Gain setting too high for the
ground, or a user missing targets because they can
not sort them from sporadic noise experienced at high
Gain.
The 3rd option is the 1 TONE mode. In 1 TONE, the
audio of targets rejected by the Discrimination control
setting is suppressed. This feature provides traditional
discrimination for the RELIC mode producing fewer
noises suppressing any metal target signal below the
discrimination setting. This feature is best for those who
have no interest in iron type targets.
The 4th option is IRON ID TONE. In IRON ID, the
discriminate control is disabled (doesn’t have any influ-
ence). Iron targets sound with the lower pitch tone. All
non-iron produces a higher pitch tone. If you are inter-
ested in both Iron and non-iron targets, Iron ID might be
Chapter MXT Pro Searching