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Filters, Filters -9, Spectra vx – White’s Electronics Spectra VX3 User Manual

Page 37

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Page 3-9

Spectra VX

3

User’s Guide

Filters

As presented in Chapter 1, modern VLF detectors use filters

to separate the target responses from the ground response. Fil-
ters are also used to minimize EMI noise. The best filter to use
depends on the strength of ground mineralization plus other fac-
tors. VX

3

offers two filters to choose from: a 5Hz filter for low-

to-modest mineralization and 12.5Hz for more severe ground
conditions. Filters and response speeds are explained in detail in
Chapter 6.