Search Modes; Auto Tune - Fisher Labs CZ-21 QuickSilver Operating Manual

SEARCH MODES

Your CZ-21 has two search modes: Target I.D. and Autotune. Both
search modes are "motion" modes, meaning the search coil must
be in motion to detect a target. Unlike other metal detectors, the
discrimination level has little, if any, effect on the depth capability
of the CZ-21. Note, however, that the all-metal Autotune mode has
a wider search pattern and may detect a little deeper. Depth is
also determined by the size, shape and conductivity of the target
as well as the sensitivity setting of the CZ-21.
AUTO TUNE MODE
Set the DISC control to AUTOTUNE, for a very sensitive, wide-
scan, all-metal, motion search mode. This mode responds to all
metal targets and does not have the ability to identify or reject
objects.
The Autotune mode is useful in three situations:
1. Non-Trashy Areas. The Autotune mode has a wider
2. Highly Mineralized Soil or Sand. The Autotune mode
3. All Metals Searching. Evidence recovery teams,
scan than the I.D. mode, reducing changes of
missing good targets. Search in the Autotune mode
until you find a target. Pinpoint the target using the
PINPOINT button and then switch the DISC control
to "0" to identify the target in Target I.D. mode. The
DISC control is positioned so that you can switch back
and forth between AUTOTUNE and "0" with a flick of
your thumb.
is recommended for black and gray beaches or
highly mineralized soil. Under these conditions it
may be necessary to lower the sensitivity level and
sweep several inches off the ground (see the notes
on p. 14) Gold nuggets are generally found in highly
mineralized soil so this will be the search mode of
choice for prospectors.
archeologists and professional underwater treasure
hunters will often opt for the deep search, all-metals
Autotune mode.
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