Tracking is not recommended to eliminate rocks under normal conditions. It is recommended
for use in areas with changing soil types.
Metals Under Rocks
GOLD RACER
increases the possibility of detecting metal targets under mineralized rocks
through the proper adjustment of your settings. The combined effect created by the rock and
metal together is lower than the effect that the metal creates by itself and the displayed ID will
be different than the metal's expected ID. The displayed ID is formed by the combination of rock
and metal together and gets closer to the ID of the rock if the size of the metal is smaller in
relation to the rock. Keep in mind that metals under hot rocks will never appear with their own
metal ID. For instance, a gold piece under a brick may produce an iron tone and ID.
Remember this very simple principle as it will save you lots of time: “If the target you detect is not
a stone, it can be metal”.
The key to detecting targets under mineralized rocks, particularly when positive rocks are in
question, is the knowledge of the maximum ID value produced by the surrounding positive
rocks. If you are performing a search in the All Metal mode, monitor the ID produced by the
device. If the ID provided by your device is close to the rock and iron zone, it is quite possible that
you detected a target under the rock. Since ID FILTER cannot be used in the All Metal mode, you
need to discriminate by taking the value on the display into consideration.
If you filter off the rocks with a correctly adjusted ID FILTER setting in discrimination modes, you
can hear the signal of the target under the rock if the target signal has a slightly greater effect
than the filtered ID. The important thing here is that if you detect a target and dig out a rock, you
should note the ID you got before digging and use it as the ID Filter value the next time.
For instance; the hot rocks in your search field tend to give IDs around 3-4. In this case, you
should set the ID Filter to maximum 5. This way you can eliminate rocks and receive the signals
of metals underneath. If you set the ID Filter too high unnecessarily, you will lose metals along
with rocks.
If the hot rocks in your search area tend to give high IDs, then the chances of missing the signals
of small metals underneath will be high as well.
Saturation
Messages
Warning messages are shown on the bottom of the display during search. Messages that may
appear are as follows:
It appears on the display simultaneously with the saturation alarm sounding like a siren. This
happens when the search coil overloads when it is over a shallow or a very large object. The
device reverts back to normal operation if you lift the coil up. If the alarm and the message
continues along a long line, you may be over a long metal such as a pipe.
In case of high mineralization, the device may overload. If the cause of overloading is not a large
metal, it may be the ground itself and this situation may be overcome by lowering the sensitivity.
Page_23
