15
Tone and Audio Options (continued)
borderline between a poor and good conductor may
fluctuate multiple times between high and low tones
to indicate a borderline conductor.
It is important to understand that iron (ferrous)
targets on any pulse detector can and will vary widely
in their readings on the tone/conductivity scale, and
is greatly affected by the iron’s size, shape, orientation,
and condition. Small iron is often, but not always, a
high tone (i.e. just like low conductors) and large iron
is often, but not always, a low tone (just like good
conductors).
Audio 00 (PWM Audio)
In PWM Audio, the target’s volume increases
proportionally with signal strength but the audio pitch
is fixed at either a high or low tone; the pitch is not
proportional. Some users prefer this type of audio for
its active, coarse response.
Audio 01 (VCO Audio)
In VCO Audio, the target’s volume and audio pitch both
increase proportionately with signal strength. Most users
prefer this type of audio for its smooth response and their
increased ability to perceive faint targets that produce faint
changes in audio pitch.
Target Signal Strength Indicators
Detected targets are heard and shown on the Axiom.
The upper bargraph shows signal strength and polarity.
Targets with high tones will create a proportional
response toward the right of center. Low-tone targets
will create a proportional response toward the left of
center.
This detected target is causing the upper row of pixels
to swing to the right, which corresponds with a target
creating a high tone..
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