V-Sat - Whites Goldmaster Serie Guia Del Propietario

SAT Level
SAT adjust
(hold)
Hot rocks are mineralized rocks.
They can be heard because they are differ-
ent in mineralization than the surrounding
matrix or body of ground. Negative hot rocks,
such as magnetite, tend to give a "boing"
sound when the search-coil is passed over
them. The greater the difference between
them and the ground, the louder the "boing".
Positive hot rocks, such as maghemite tend
to sound just like any other metal target,
such as a nugget and can give a zip-zip
sound. Positive hot rocks will test any pros-
pectors patience. The GMX will reduce the
effect and help to identify many hot rocks.
V-SAT Speed Control
The Variable SAT (Self Adjusting Thresh-
old) Speed control adjusts the speed that the
GMX recovers its threshold hum when the
search-coil passes over changes in minerali-
zation. This setting is adjusted by holding the
MUSIC button and then adjusting the SAT
up or down between 0 (off), 1 (medium), or
2 (fast). The letters "Sa" will display when
adjusting V-SAT.
V-SAT Adjustment
The Initial Setting is 1 (medium), appropri-
ate for mild-to-moderate ground minerali-
zation. When you encounter fast changes
in ground mineralization or deeper, larger
hot rocks, you may either get false signals
(positive ground) or lapses in the THRESH-
OLD hum (negative ground). Increasing
the V-SAT control setting to 2 will speed up
the auto adjustment of the THRESHOLD
"hum" and reduce this interference. At the
same time, you should slow down your
sweep speed to help SAT do its job to main-
tain a smooth threshold.
Remember, overall depth will be diminished
with a faster V-SAT speed, but if the ground
is too noisy to separate a good target from
a false signal, it is better to operate with a
little more V-SAT speed than to lose a target
altogether. This is the same logic that was
used in describing the SENSITIVITY con-
trol. Lowering the gain will reduce overall
depth, but by doing so you can also improve
your performance and find more nuggets in
the long run. For best results, set your V-SAT
speed JUST high enough to cancel out false
signals from ground mineralization and
set the SENSITIVITY control JUST high
enough to maintain maximum depth without
having false or erratic behavior.
GMX Controls
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