White Spectra VX3 Manual de Instruções descarregar pdf (Página 51)

Page 4-14

Spectra VX

User’s Guide

pull and hold the pinpoint trigger switch or flip it to the forward

position. Pinpoint audio is identical to all-metal audio with one

exception: normal all-metal mode has SAT applied to it, and

pinpoint does not. That means the all-metal channel requires

loop motion or the target will get “tuned out,” but pinpoint does

not require loop motion.

Pinpoint audio has only one option, VCO, which is the same

as with the all-metal search mode.

Discrimination

A primary feature of practically all detectors since the

1970’s has been discrimination. VX

is no different. Discrimi-

nation, of course, allows us to accept or ignore certain targets

based on their phase (or VDI) response. In analog detectors, this

is accomplished with a knob that sets the threshold point of dis-

crimination; everything below the threshold is rejected, and

everything above is accepted.

Modern digital detectors take discrimination to a higher

level, allowing the user to accept and reject narrow VDI

regions. VX

has a discrimination resolution that allows individ-

ual VDI number to be accepted or rejected. The Discrimination

menu is:

Unlike the Disc entry on the Live Control Bar, the Disc

menu includes the icons assigned to each VDI, making it a little

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White Spectra VX3 Manual de Instruções Página 51