Minelab SD2200V2 Instruction Manual page 15

Instruction Manual
5.2.4 Set the Tone Control
Carefully adjust the Tone control until the threshold sound is at a comfortable
pitch for your hearing. Note that interpretation of the detection signals involves
understanding the difference between the rising and falling pitch of the
threshold. Again, we suggest you take time to experiment with known
targets. Generally, setting the Tone control at a high pitch is more fatiguing
but better for identifying the faintest signals.
5.2.5 Set Tune Control
With the SD2200v2 operating and the Threshold control and Tone control
set:
· Hold the detector at waist height and the coil vertical.
· Keeping the coil vertical, slowly move it through a half-circle around
your body. Listen for an increase in interference as you move the coil.
When the interference is loudest, stop moving the detector, hold it
motionless in that position and momentarily press the Tune button.
· The detector will now scan through its range of transmission
frequencies and automatically select the frequency that offers a
minimum of interference. The end of the search (which takes about
one minute) is announced by three beeps.
Important: While the detector is selecting the preferred frequency, the coil
must be kept motionless and clear of metal objects.
· In some cases it may not be possible to remove the interference
completely, but the effect will be greatly reduced.
· Once this control has been set for the location you are in, it should not
require readjustment unless conditions change or new interference is
introduced such as other detectors operating in the vicinity.
5.2.6 Boost Switch (Shallow, N, Deep)
This switch is used to select the type of sound made by the detector in
response to different target types. In the Shallow position, signals from
small targets close to the surface are boosted. This makes it easier to
hear these target signals. This setting will also tend to boost ground noise,
so this setting is best used in quiet ground.
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