All Metal; Discrimination; Tone Mode Audio Responses - Bounty Hunter Challenger Owner's Manual

OPERATION
Select the MODE OF OPERATION
The Challenger has two operating modes, ALL METAL and DISCRIMINATION.

ALL METAL

To enter the ALL METAL mode, click the right knob Disk/Notch (Discriminate)
off, 100% counterclockwise. In the full counterclockwise position, you will
detect all types of metal.
In the ALL METAL mode, your detector will emit only one tone, regardless of the
type of metal detected. It will detect low-grade metals like iron (a nail) or
aluminum (foil). It will also detect more valuable items like silver, copper, and gold.
APPLICATIONS:
Use the ALL METAL mode for household applications, such as finding
property markers or lost objects like keys or machine parts.
ALL METAL is also useful for gold prospecting. Be aware that you need to
search in an area where gold has been found in the past.
ALL METAL is also preferred for relic hunting. Many relics are made of iron.
You must be in the ALL METAL mode to detect iron.
Maximum depth detection is achieved in the ALL METAL mode.

DISCRIMINATION

Click the Discriminate Control (right Knob) on to enter the DISCRIMINATION mode.
Discrimination is the elimination of certain metals from detection, and the
classification of targeted metals using audio feedback. See chart below.
NO
RESPONSE
Iron & Steel
As the chart illustrates, iron and steel will be discriminated out, inducing no audio
response. Nickels and gold items will induce a low tone. Silver, copper, and
brass will induce a high tone. Many pull-tabs (but not all) will induce a "broken"
tone. To achieve the broken tone, set the discriminate control at the approximate
center position, about 12:00. Adjustment to 1:00 or 2:00 may be necessary to
induce the broken tone for some irregularly-shaped objects
Depth of detection is slightly reduced in the DISCRIMINATION mode.

TONE MODE AUDIO RESPONSES

LOW
TONE
Gold & Nickel
BROKEN
TONE
Old & New Pull Tabs
HIGH
TONE
Copper, Silver & Brass
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