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The Minelab Excalibur Family
Figure 8 - Discriminate control examples
The Disc control setting must be relative to the types of objects that you wish
to hunt for and the amount of trash that you are prepared to detect. For
example, if you are hunting for fine white gold rings and set the Disc control to
position 4, you will also find some types of aluminum foil. If you do not want
to dig old bottle caps but do want to dig brass buttons and copper coins, the
Disc control is set higher (approximately at number 13), but most fine white
gold rings, foil, and some yellow gold rings will also be ignored.
With experience, setting the Disc control will become second nature, and you
will be able to skillfully set this control to ignore most targets you do not want.
