White’s Electronics Spectra VX3 - Manual (Page 49)

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Spectra VX 3 User’s Guide
Tone ID
Any modern discriminating detector has at least a rudimen-
tary audio method of distinguishing accepted targets from
rejected ones. This may be as simple as an audio response for
accepted targets and no audio response for rejected targets.
More advanced detectors have a tonal identification system
where different tones represent different target ranges (phase
responses).
VX 3 has the ability to produce a different tone for each VDI
number. But it can also produce a simple beep/no beep audio for
those who don’t want the complete tone ID system. If the
Audio

Search Audio

Tone ID selection is unchecked, then all
accepted targets will respond with a single tone. If it is checked,
then the target response will use progressively higher tones for
increasing VDIs.
Mixed-Mode Audio
Without mixed-mode, you can hear either the all-metal
audio or the discrimination audio. The all-metal channel doesn’t
tell you anything about the quality of a target; the discrimina-
tion channel only signals on accepted targets, and rejected tar-
gets cause a null in the audio. Weak targets below the
discrimination threshold produce no discrimination response.
Mixed-mode lets you hear both audio channels. The advan-
tage is that you can hear the responses of all targets, even those