RECOVERY TOOLS
A heavy duty blunt screwdriver, sturdy hunting knife,  or garden 
trowel are commonly  used.  Made especially for the Hobby of 
Metal Detecting are several well designed sand scoops, trowels, 
and digging tools .  See your local dealer for more information.
FALSE SIGNALS
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A  “False  Signal”  occurs  when  something  sounds  like  a  good 
target, but is not.  Your CZ-3D does a great job of discriminating, 
but bad “targets” with similar electrical characteristics can fool 
it.  Large pieces of trash or items very close to the search coil will 
occasionally sound “good”.  Experience is the best teacher.  As 
you accumulate more hours with your CZ-3D, you will soon learn 
how to distinguish “false signals”.  Initially when you pass over a 
target, and get a good response, you will find that crossing over the 
target once or twice more, the signal will break up or completely 
disappear. 
The following are some sources of false signals and the solution:
1.  Electrical Interference: Caused by radio and TV towers, power 
lines, or other metal detectors.
SOLUTION:  Move farther away  from  the  source,  slow  down  the 
sweep speed, or lower the sensitivity.
2.  Highly Mineralized Soil: Soils with a high iron or salt content. 
SOLUTION: Reduce the sensitivity, raise the discrimination level or 
readjust the ground adjust setting..
3.  Extremely Trashy Areas: May result in a lot of “chatter”.
SOLUTION: adjust the discrimination level  or reduce the sensitivity.  
In some areas, a smaller coil will be beneficial to better achieve 
target seperation.
4.  Metal Interference: The CZ-3D will pick up metal ABOVE and 
on the SIDE of the coil, as well as under. WATCH FOR: Large metal 
structures, your digging tool, metal in shoes and your coil cable 
hanging loose above the coil.