Chapter 4 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 sig-
nal. 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 top most 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!
Audio Mode
Tapping the Music button toggles between two different audio modes. With the Music Icon ON, the
GM24k will produce 2 distinct beeps, one high and one low, for different types of targets. 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.).
With the Music Icon OFF, the GM24k will produce a standard VCO all-metal “zip” sound on targets.
This mode is generally preferred by experienced prospectors due to the nuances of the sound and per-
ceived sensitivity to small targets.
All settings (SAT, Volume, Threshold, Iron Cancel, etc.) have the same effects in both audio modes. This
allows for maximum flexibility for different users.
12
Target ID #
Higher number,
Better chance of gold
Visual Target
ID
“Beep” Mode
Audio Mode
Selection
Summary of Contents for GM24k
Page 32: ...QUICK START ...
