Detect Plus; Threshold Level; Volume Limit - Minelab GPZ 7000 Instruction Manual

Detect Plus

Detect Plus
The Detect Plus page contains settings for the detector's
headphones, wireless speaker, wireless headphones, and
Ground Balance functions.
The available Items are:

• Threshold Level

• Volume Limit

• Threshold Pitch
• Ground Balance Mode
Threshold Level
Range: 1–50
Factory Preset: 30
The constant background 'hum' produced by the detector
is called the Threshold. Variations in the Threshold help
you to hear very small and deep targets.
The Threshold is controlled by Threshold Level and
Threshold Pitch. The correct adjustment of both Threshold
settings will depend on your hearing and environmental
noise such as wind, waves and machinery.
Adjust the Threshold Level to a faint, audible hum. This
will highlight variations in signal response which may
indicate the presence of a target. If the soil conditions
change the Threshold Level may need adjustment.
If the Threshold Level is too high, faint targets will be
harder to hear above the Threshold 'hum' .
If the Threshold Level is too low, the slight variation
caused by a small or deep target may not be sufficient
to hear. Adjusting the level to below an audible level
will ensure silent operation but could mask the audio
response from small or deep targets.
Volume Limit
Range: 1–20
Factory Preset: 12
The Volume Limit sets the maximum volume for target
signals. When detecting, the sound produced by a target
can be very loud. Adjust the Volume Limit to ensure that
loud targets do not hurt your ears.
Note
A high Volume Limit will allow a greater
difference between a small and large target.
A low Volume Limit will reduce the volume
difference between small and large targets.
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