SEARCH MODES 
the surface may set off the bell tone. The optional, smaller 5 inch coil is more likely to overload than the standard 8 inch coil.
10.You may also note that some square tabs ID as round tabs and vice versa. Because of the wide variety of sizes, shapes and conductivity of the many pull tabs manufactured over the years, there is overlap as far as identification goes. Small pieces of tabs or aluminum are often misidentified. The tail of a round tab for example, may ID as a nickel. However, most tabs and most of the items on the
11.Now increase the DISC control to “1”. You will find that the
12.Continue to increase your DISC control, noting that with each successive step up you reject more and more targets. At DISC = 4 for example, you are in a
13.At the maximum DISC level of 6 the
14.Now switch the DISC control to the AUTOTUNE position and note the completely different kind of response. No tone or meter identification, just a solid, smooth, response over every target.
15.The chart on page 14 shows some of the responses you may expect over different targets and at different levels of discrimination. As you progressively increase the discrimination level, you eliminate more and more targets.
NOTE: Due to the virtually infinite variety of sizes, shapes and alloys of many “good” targets (relics, jewelry, foreign coins, etc.), they may be misidentified. For example, a Civil War mini ball may be identified as foil, or a new Canadian coin as a rectangular pull tab.
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