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50
The X-Terra 30 has a fi xed ground balance
that allows adequate operation over most
types of soils.
The X-Terra 50 has an adjustable ground
balance which helps in compensating
for false signals.
When the detector is unbalanced, it will
detect targets, but it may also register false
detections due to ground mineralisation.
These false detections are displayed as -9
in all metal or two dashes when using the
factory preset patterns. This will cause good
targets to be displayed only briefl y and with
clipped sound.
Ground balance range = 0-20
Factory preset = 6
Ground balancing the detector reduces
false detections and enables good targets
to be displayed and heard correctly.
Ground balance settings aff ect both normal
discrimination detection and pinpoint
operation.
If there is diffi culty ground balancing in
an area with the X-Terra 50, try reducing
sensitivity
.
(pg. 44)
When detecting on the beach, adjusting
ground balance may not give signifi cant
improvements. Try adjusting sensitivity
and altering patterns for best results.
Highly mineralised soil may produce false
signals and distract from real targets.
51
Mineralised ground and 'hot rocks'
may register as -9 when detecting in
all metal. This is more likely to happen
at high sensitivity settings and with an
unbalanced detector.
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