Target Id; Audio Modes - White's GARRETT GOLDMASTER 24k User Manual

GM24k Controls

Target ID

The GM24k features two types of Target ID. The
most obvious is the large numbers displayed in the
center of the screen when the coil passes over a
target. These two digits represent a scale from 0 to
99, with higher numbers equalling a higher chance
that the target is non-ferrous.
In challenging ground, or when gold is located in
host rock, it's important to dig every questionable
Target ID #
Higher number,
Better chance of gold
"Beep" Mode
Audio Mode
Selection

Audio Modes

Tap the Audio Mode button (the music note icon)
to toggle between two different audio modes. With
the Audio Mode icon ON, the GM24k is in "Beep"
Mode, meaning it will produce 2 distinct beeps,
one high and one low, for different types of tar-
gets. The higher tone has a better chance of being
a non-ferrous target (gold, aluminum, silver, brass,
etc.), and the lower tone has a better chance of
being ferrous (iron, hot rocks, etc.).
12 Garrett Metal Detectors
signal. Sometimes very small gold can produce
a low Target ID number, or in the case of sub-
grain-sized nuggets, no number at all. This is why
many electronic prospectors hunt mostly based on
sound.
In addition to this, the topmost bar of the screen
displays a general scale of targets. You can see that
gold has a large range, due to the many different
sizes, shapes, and consistencies of gold nuggets.
When in doubt, dig it out.
Visual Target ID
With the Audio Mode icon OFF (music note icon is
not displayed), the GM24k will produce a standard
VCO (voltage controlled oscillator) "zip" sound on
targets, where both audio pitch and volume rise as
signal strength increases. This "Zip" mode is gen-
erally preferred by experienced prospectors due to
the nuances of the sound and perceived sensitivity
to small targets.
All settings (SAT, Volume, Threshold, Iron Cancel,
etc.) have the same effects in both audio modes.
This allows maximum flexibility for different users.