Fisher M-SCOPE CZ-3D - Manual (Page 13)

AUTOTUNE SEARCH MODE
Set the DISC control to Autotune for a very sensitive, wide-scan, all-
metal, motion search mode. Since this mode responds to all metal
targets and does not have the ability to identify or reject targets, this will
probably not be your normal search mode.
The Autotune mode does have some advantages however which
make it useful to use in at least two situations:
1. Non-Trashy Areas. Since the Autotune mode has a wider
scan than the ID mode, you’re less likely to miss a good
target when using it. 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
it. The DISC control is positioned so that you can switch
back and forth between Autotune and “0”.
2. Highly Mineralized Soil or Sand. The Autotune Mode
is recommended for black or gray sand beaches or
highly mineralized soil. Under these conditions it may be
necessary to lower the sensitivity level and sweep several
inches off the ground. Gold nuggets are generally found
in highly mineralized soil so this will be the search mode
of choice for prospectors.
TARGET ID SEARCH MODE
When the DISC control is set in the 0 through 6 position, the CZ-3D has
the ability to identify many types of small targets and, depending on the
discrimination level, reject or ignore most of them. To better understand
just how your CZ-3D responds to different targets, try the following:
1. Scatter some sample targets such as coins, rings, pull
tabs, nails and foil on the ground at least 18 inches apart.
Include some large targets as well; jar lids, soda cans,
etc.
2. Set the DISC control at “0”, SENSITIVITY at “5”, MODE
at ‘ENHANCE’, VOLUME at “10”. If you’re wearing
headphones, reduce the volume to a comfortable level
when you are over a large target.
3. Ground balance the CZ-3D as in the “Ground Balance”
procedure.
4. Hold the search coil about two inches above and parallel
to the ground and move it slowly back and forth across
each sample. Remember, the coil must be in motion to
SEARCH MODES
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