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Troy Custom Detectors Shadow X3
36
Target Masking
- The affect of a discriminated target near a desirable
target which prevents the desirable target from being sensed and heard.
(see recovery speed also)
Target Perception
- The ability to audibly determine the exact center of
a small target prior to retrieval by listening to its audio signal. Head-
phone usage markedly increases target perception by providing a
balanced audio signal to each ear, thus making target 'centering' easier.
Threshold
- The slight audio sound heard through the speaker or
headphones when operating in the threshold-dependent all-metal mode
or threshold discrimination mode. The threshold sound is set by the
threshold control and can be kept constant by using auto-tuning.
Threshold-Dependent All-Metal Mode
- An operating mode that
responds to any metallic target. When adjusted properly, this mode
always has a slight background audio tone, known as audio threshold,
that 'informs' the operator that the detector is operating at its optimum
peak threshold point.
Tone
- The pitch (frequency) of the audio signal heard through the
speaker or headphones when a metal target is sensed.
Tweak
- A slight adjustment to a control. To fine-tune.
VCO
- Voltage Controlled Oscillator. A method of audibly presenting
target information by both frequency (tone) and amplitude (volume). As
a target is approached, using VCO, the tone and volume begin to in-
crease from a soft 'growl' to a louder, higher-pitched tone as the target
center is passed directly beneath the search coil center. VCO is a
momentary operating mode to aid in pinpointing and target recovery.
VLF
- Very Low Frequency. A range of electromagnetic frequencies
where ground-canceling metal detectors typically operate. This range
extends from about 1 kHz to 50 kHz with most detectors operating in the
3 kHz to 30 kHz range.
Zero Discrimination
- A motion discrimination setting that is activated
by placing the
DISC
scrimination control at its full counterclockwise
number '1' position, thus accepting all metal targets. search coil motion
is required to detect targets.
GLOSSARY
- continued
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9
Owner Instruction Manual
CONTROLS
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The Shadow X3 Control Panel