Audio Type / Changing The Audio Response Of Target Signals; Audio Tone / Adjusting The Pitch Of The Threshold - Minelab GPX5000 Instruction Manual

Audio Type
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Changing the audio response of
target signals.
GPX 5000 Range
Quiet, Normal, Deep, Boost
GPX 4800 Range Quiet, Normal, Deep
Factory Preset Normal
The Audio Type function allows you to change the way
that the detector interprets a signal and how that signal is
produced as an audio response.
Quiet
This setting gives the most reduction of both ground noise
and interference. The signal response is slightly quieter
compared to the other Audio Types. Quiet should only be
used in the most extreme situations.
Normal
This is the most versatile setting and should be used for
general detecting conditions. Normal provides the best
compromise for signal response and Threshold stability.
Deep
This setting is the preferred Audio Type when searching for
larger targets at depth. It works well in combination with
the Slow Motion setting, where target signals are distinct,
but noise from the ground and electrical interference are
somewhat filtered out.
Boost (GPX 5000)
This is a more aggressive Audio Type. Boost will provide very
sharp target signals but will also increase any signal caused
by ground noises or electrical interference. It is best used in
milder soils and well away from electrical interference.
Note: Each Audio Type will have a different optimum Rx Gain
setting so you should check the level of Rx Gain if you make
changes to Audio Type.
Audio Tone
Adjusting the pitch of the Threshold.
GPX 5000 Range
1–100
GPX 4800 Range 1–100
Factory Preset 50
Audio Tone is the pitch of the Threshold emitted by
the detector.
Large, deep targets produce a different response to small,
shallow targets. It is important to adjust the Audio Tone to suit
the type of target you are searching for.
A high Audio Tone setting may help identify small targets from
ground signals, but a low Audio Tone setting may allow deep
target signals to stand out.
Everyone's hearing is different and you may find that you hear
targets better in a particular range of Audio Tone. Try using
a large and small target, and adjust the Audio Tone until you
find a setting that produces the most obvious signal response
for your hearing.
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